fix: improve Kimi K2.5 image support logic and add tests

- Only block kimi-k2 specifically, not all Kimi models
- Add unit test for kimi-k2.5 image support

README.md

@@ -19,7 +19,7 @@ English | [中文](./docs/cn/README_CN.md) | [日本語](./docs/ja/README_JA.md)
 
 A Next.js web application that integrates AI capabilities with draw.io diagrams. Create, modify, and enhance diagrams through natural language commands and AI-assisted visualization.
 
-> Note: Thanks to <img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) sponsorship, the demo site now uses the powerful K2-thinking model!
+> Note: Thanks to <img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) sponsorship, the demo site now uses the powerful K2-thinking model!
 
 
 https://github.com/user-attachments/assets/9d60a3e8-4a1c-4b5e-acbb-26af2d3eabd1
@@ -202,7 +202,7 @@ See the [Next.js deployment documentation](https://nextjs.org/docs/app/building-
 
 ## Multi-Provider Support
 
--   [ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
+-   [ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
 -   AWS Bedrock (default)
 -   OpenAI
 -   Anthropic
@@ -244,7 +244,7 @@ Diagrams are represented as XML that can be rendered in draw.io. The AI processe
 
 ## Support & Contact
 
-**Special thanks to [ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) for sponsoring the API token usage of the demo site!** Register on the ARK platform to get 500K free tokens for all models!
+**Special thanks to [ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) for sponsoring the API token usage of the demo site!** Register on the ARK platform to get 500K free tokens for all models!
 
 If you find this project useful, please consider [sponsoring](https://github.com/sponsors/DayuanJiang) to help me host the live demo site!
 

app/[lang]/about/cn/page.tsx

@@ -78,7 +78,7 @@ export default function AboutCN() {
                                 <p>
                                     好消息！感谢{" "}
                                     <a
-                                        href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                        href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                         target="_blank"
                                         rel="noopener noreferrer"
                                         className="font-semibold text-blue-600 hover:underline"
@@ -277,7 +277,7 @@ export default function AboutCN() {
                     <ul className="list-disc pl-6 text-gray-700 space-y-1">
                         <li>
                             <a
-                                href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                 target="_blank"
                                 rel="noopener noreferrer"
                                 className="text-blue-600 hover:underline"
@@ -312,7 +312,7 @@ export default function AboutCN() {
                     <p className="text-gray-700 mb-4 font-semibold">
                         特别感谢{" "}
                         <a
-                            href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                            href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                             target="_blank"
                             rel="noopener noreferrer"
                             className="text-blue-600 hover:underline"

app/[lang]/about/ja/page.tsx

@@ -86,7 +86,7 @@ export default function AboutJA() {
                                 <p>
                                     朗報です！
                                     <a
-                                        href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                        href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                         target="_blank"
                                         rel="noopener noreferrer"
                                         className="font-semibold text-blue-600 hover:underline"
@@ -292,7 +292,7 @@ export default function AboutJA() {
                     <ul className="list-disc pl-6 text-gray-700 space-y-1">
                         <li>
                             <a
-                                href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                 target="_blank"
                                 rel="noopener noreferrer"
                                 className="text-blue-600 hover:underline"
@@ -327,7 +327,7 @@ export default function AboutJA() {
                     <p className="text-gray-700 mb-4 font-semibold">
                         デモサイトのAPIトークン使用を支援してくださった{" "}
                         <a
-                            href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                            href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                             target="_blank"
                             rel="noopener noreferrer"
                             className="text-blue-600 hover:underline"

app/[lang]/about/page.tsx

@@ -87,7 +87,7 @@ export default function About() {
                                     Great news! Thanks to the generous
                                     sponsorship from{" "}
                                     <a
-                                        href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                        href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                         target="_blank"
                                         rel="noopener noreferrer"
                                         className="font-semibold text-blue-600 hover:underline"
@@ -311,7 +311,7 @@ export default function About() {
                     <ul className="list-disc pl-6 text-gray-700 space-y-1">
                         <li>
                             <a
-                                href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                                href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                                 target="_blank"
                                 rel="noopener noreferrer"
                                 className="text-blue-600 hover:underline"
@@ -348,7 +348,7 @@ export default function About() {
                     <p className="text-gray-700 mb-4 font-semibold">
                         Special thanks to{" "}
                         <a
-                            href="https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
+                            href="https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project"
                             target="_blank"
                             rel="noopener noreferrer"
                             className="text-blue-600 hover:underline"

app/api/chat/route.ts

@@ -449,6 +449,7 @@ ${userInputText}
 
     const result = streamText({
         model,
+        abortSignal: req.signal,
         ...(process.env.MAX_OUTPUT_TOKENS && {
             maxOutputTokens: parseInt(process.env.MAX_OUTPUT_TOKENS, 10),
         }),

components/chat-input.tsx

@@ -7,6 +7,7 @@ import {
     Link,
     Loader2,
     Send,
+    Square,
 } from "lucide-react"
 import type React from "react"
 import {
@@ -154,6 +155,7 @@ interface ChatInputProps {
     status: "submitted" | "streaming" | "ready" | "error"
     onSubmit: (e: React.FormEvent<HTMLFormElement>) => void
     onChange: (e: React.ChangeEvent<HTMLTextAreaElement>) => void
+    onStop?: () => void
     files?: File[]
     onFileChange?: (files: File[]) => void
     pdfData?: Map<
@@ -182,6 +184,7 @@ export const ChatInput = forwardRef<ChatInputRef, ChatInputProps>(
             status,
             onSubmit,
             onChange,
+            onStop,
             files = [],
             onFileChange = () => {},
             pdfData = new Map(),
@@ -552,24 +555,30 @@ export const ChatInput = forwardRef<ChatInputRef, ChatInputProps>(
                             showUnvalidatedModels={showUnvalidatedModels}
                         />
                         <div className="w-px h-5 bg-border mx-1" />
-                        <Button
-                            type="submit"
-                            disabled={isDisabled || !input.trim()}
-                            size="sm"
-                            className="h-8 px-4 rounded-xl font-medium shadow-sm"
-                            aria-label={
-                                isDisabled ? dict.chat.sending : dict.chat.send
-                            }
-                        >
-                            {isDisabled ? (
-                                <Loader2 className="h-4 w-4 animate-spin" />
-                            ) : (
-                                <>
-                                    <Send className="h-4 w-4 mr-1.5" />
-                                    {dict.chat.send}
-                                </>
-                            )}
-                        </Button>
+                        {(status === "streaming" || status === "submitted") &&
+                        onStop ? (
+                            <Button
+                                type="button"
+                                onClick={onStop}
+                                size="sm"
+                                variant="destructive"
+                                className="h-8 w-8 p-0 rounded-xl shadow-sm"
+                                aria-label={dict.chat.stopGeneration}
+                            >
+                                <Square className="h-4 w-4" />
+                            </Button>
+                        ) : (
+                            <Button
+                                type="submit"
+                                disabled={isDisabled || !input.trim()}
+                                size="sm"
+                                className="h-8 px-4 rounded-xl font-medium shadow-sm"
+                                aria-label={dict.chat.send}
+                            >
+                                <Send className="h-4 w-4 mr-1.5" />
+                                {dict.chat.send}
+                            </Button>
+                        )}
                     </div>
                 </div>
                 <HistoryDialog

components/chat-panel.tsx

@@ -340,151 +340,155 @@ export default function ChatPanel({
         onValidationStateChange: handleValidationStateChange,
     })
 
-    const { messages, sendMessage, addToolOutput, status, error, setMessages } =
-        useChat({
-            transport: new DefaultChatTransport({
-                api: getApiEndpoint("/api/chat"),
-            }),
-            onToolCall: async ({ toolCall }) => {
-                await handleToolCall({ toolCall }, addToolOutput)
-            },
-            onError: (error) => {
-                // Handle server-side quota limit (429 response)
-                // AI SDK puts the full response body in error.message for non-OK responses
-                try {
-                    const data = JSON.parse(error.message)
-                    if (data.type === "request") {
-                        quotaManager.showQuotaLimitToast(data.used, data.limit)
-                        return
-                    }
-                    if (data.type === "token") {
-                        quotaManager.showTokenLimitToast(data.used, data.limit)
-                        return
-                    }
-                    if (data.type === "tpm") {
-                        quotaManager.showTPMLimitToast(data.limit)
-                        return
-                    }
-                } catch {
-                    // Not JSON, fall through to string matching for backwards compatibility
+    const {
+        messages,
+        sendMessage,
+        addToolOutput,
+        status,
+        error,
+        setMessages,
+        stop,
+    } = useChat({
+        transport: new DefaultChatTransport({
+            api: getApiEndpoint("/api/chat"),
+        }),
+        onToolCall: async ({ toolCall }) => {
+            await handleToolCall({ toolCall }, addToolOutput)
+        },
+        onError: (error) => {
+            // Handle server-side quota limit (429 response)
+            // AI SDK puts the full response body in error.message for non-OK responses
+            try {
+                const data = JSON.parse(error.message)
+                if (data.type === "request") {
+                    quotaManager.showQuotaLimitToast(data.used, data.limit)
+                    return
                 }
+                if (data.type === "token") {
+                    quotaManager.showTokenLimitToast(data.used, data.limit)
+                    return
+                }
+                if (data.type === "tpm") {
+                    quotaManager.showTPMLimitToast(data.limit)
+                    return
+                }
+            } catch {
+                // Not JSON, fall through to string matching for backwards compatibility
+            }
 
-                // Fallback to string matching
-                if (error.message.includes("Daily request limit")) {
-                    quotaManager.showQuotaLimitToast()
-                    return
-                }
-                if (error.message.includes("Daily token limit")) {
-                    quotaManager.showTokenLimitToast()
-                    return
+            // Fallback to string matching
+            if (error.message.includes("Daily request limit")) {
+                quotaManager.showQuotaLimitToast()
+                return
+            }
+            if (error.message.includes("Daily token limit")) {
+                quotaManager.showTokenLimitToast()
+                return
+            }
+            if (
+                error.message.includes("Rate limit exceeded") ||
+                error.message.includes("tokens per minute")
+            ) {
+                quotaManager.showTPMLimitToast()
+                return
+            }
+
+            // Silence access code error in console since it's handled by UI
+            if (!error.message.includes("Invalid or missing access code")) {
+                console.error("Chat error:", error)
+            }
+
+            // Translate technical errors into user-friendly messages
+            // The server now handles detailed error messages, so we can display them directly.
+            // But we still handle connection/network errors that happen before reaching the server.
+            let friendlyMessage = error.message
+
+            // Simple check for network errors if message is generic
+            if (friendlyMessage === "Failed to fetch") {
+                friendlyMessage = "Network error. Please check your connection."
+            }
+
+            // Truncated tool input error (model output limit too low)
+            if (friendlyMessage.includes("toolUse.input is invalid")) {
+                friendlyMessage =
+                    "Output was truncated before the diagram could be generated. Try a simpler request or increase the maxOutputLength."
+            }
+
+            // Translate image not supported error
+            if (
+                friendlyMessage.includes("image content block") ||
+                friendlyMessage.toLowerCase().includes("image_url")
+            ) {
+                friendlyMessage = "This model doesn't support image input."
+            }
+
+            // Add system message for error so it can be cleared
+            setMessages((currentMessages) => {
+                const errorMessage = {
+                    id: `error-${Date.now()}`,
+                    role: "system" as const,
+                    content: friendlyMessage,
+                    parts: [{ type: "text" as const, text: friendlyMessage }],
                 }
+                return [...currentMessages, errorMessage]
+            })
+
+            if (error.message.includes("Invalid or missing access code")) {
+                // Show settings dialog to help user fix it
+                setShowSettingsDialog(true)
+            }
+        },
+        onFinish: () => {},
+        sendAutomaticallyWhen: ({ messages }) => {
+            const isInContinuationMode = partialXmlRef.current.length > 0
+
+            const shouldRetry = hasToolErrors(
+                messages as unknown as ChatMessage[],
+            )
+
+            if (!shouldRetry) {
+                // No error, reset retry count and clear state
+                autoRetryCountRef.current = 0
+                continuationRetryCountRef.current = 0
+                partialXmlRef.current = ""
+                return false
+            }
+
+            // Continuation mode: limited retries for truncation handling
+            if (isInContinuationMode) {
                 if (
-                    error.message.includes("Rate limit exceeded") ||
-                    error.message.includes("tokens per minute")
+                    continuationRetryCountRef.current >=
+                    MAX_CONTINUATION_RETRY_COUNT
                 ) {
-                    quotaManager.showTPMLimitToast()
-                    return
-                }
-
-                // Silence access code error in console since it's handled by UI
-                if (!error.message.includes("Invalid or missing access code")) {
-                    console.error("Chat error:", error)
-                }
-
-                // Translate technical errors into user-friendly messages
-                // The server now handles detailed error messages, so we can display them directly.
-                // But we still handle connection/network errors that happen before reaching the server.
-                let friendlyMessage = error.message
-
-                // Simple check for network errors if message is generic
-                if (friendlyMessage === "Failed to fetch") {
-                    friendlyMessage =
-                        "Network error. Please check your connection."
-                }
-
-                // Truncated tool input error (model output limit too low)
-                if (friendlyMessage.includes("toolUse.input is invalid")) {
-                    friendlyMessage =
-                        "Output was truncated before the diagram could be generated. Try a simpler request or increase the maxOutputLength."
-                }
-
-                // Translate image not supported error
-                if (
-                    friendlyMessage.includes("image content block") ||
-                    friendlyMessage.toLowerCase().includes("image_url")
-                ) {
-                    friendlyMessage = "This model doesn't support image input."
-                }
-
-                // Add system message for error so it can be cleared
-                setMessages((currentMessages) => {
-                    const errorMessage = {
-                        id: `error-${Date.now()}`,
-                        role: "system" as const,
-                        content: friendlyMessage,
-                        parts: [
-                            { type: "text" as const, text: friendlyMessage },
-                        ],
-                    }
-                    return [...currentMessages, errorMessage]
-                })
-
-                if (error.message.includes("Invalid or missing access code")) {
-                    // Show settings dialog to help user fix it
-                    setShowSettingsDialog(true)
-                }
-            },
-            onFinish: () => {},
-            sendAutomaticallyWhen: ({ messages }) => {
-                const isInContinuationMode = partialXmlRef.current.length > 0
-
-                const shouldRetry = hasToolErrors(
-                    messages as unknown as ChatMessage[],
-                )
-
-                if (!shouldRetry) {
-                    // No error, reset retry count and clear state
-                    autoRetryCountRef.current = 0
+                    toast.error(
+                        formatMessage(dict.errors.continuationRetryLimit, {
+                            max: MAX_CONTINUATION_RETRY_COUNT,
+                        }),
+                    )
                     continuationRetryCountRef.current = 0
                     partialXmlRef.current = ""
                     return false
                 }
-
-                // Continuation mode: limited retries for truncation handling
-                if (isInContinuationMode) {
-                    if (
-                        continuationRetryCountRef.current >=
-                        MAX_CONTINUATION_RETRY_COUNT
-                    ) {
-                        toast.error(
-                            formatMessage(dict.errors.continuationRetryLimit, {
-                                max: MAX_CONTINUATION_RETRY_COUNT,
-                            }),
-                        )
-                        continuationRetryCountRef.current = 0
-                        partialXmlRef.current = ""
-                        return false
-                    }
-                    continuationRetryCountRef.current++
-                } else {
-                    // Regular error: check retry count limit
-                    if (autoRetryCountRef.current >= MAX_AUTO_RETRY_COUNT) {
-                        toast.error(
-                            formatMessage(dict.errors.retryLimit, {
-                                max: MAX_AUTO_RETRY_COUNT,
-                            }),
-                        )
-                        autoRetryCountRef.current = 0
-                        partialXmlRef.current = ""
-                        return false
-                    }
-                    // Increment retry count for actual errors
-                    autoRetryCountRef.current++
+                continuationRetryCountRef.current++
+            } else {
+                // Regular error: check retry count limit
+                if (autoRetryCountRef.current >= MAX_AUTO_RETRY_COUNT) {
+                    toast.error(
+                        formatMessage(dict.errors.retryLimit, {
+                            max: MAX_AUTO_RETRY_COUNT,
+                        }),
+                    )
+                    autoRetryCountRef.current = 0
+                    partialXmlRef.current = ""
+                    return false
                 }
+                // Increment retry count for actual errors
+                autoRetryCountRef.current++
+            }
 
-                return true
-            },
-        })
+            return true
+        },
+    })
 
     // Store sendMessage in ref for use in callbacks (like handleImproveWithSuggestions)
     useEffect(() => {
@@ -993,6 +997,29 @@ export default function ChatPanel({
         }
     }
 
+    // Handle stop button click
+    const handleStop = useCallback(() => {
+        const lastMessage = messages[messages.length - 1]
+        const toolParts = lastMessage?.parts?.filter(
+            (part: any) =>
+                part.type?.startsWith("tool-") &&
+                part.state === "input-streaming",
+        )
+
+        toolParts?.forEach((part: any) => {
+            if (part.toolCallId) {
+                addToolOutput({
+                    tool: part.type.replace("tool-", ""),
+                    toolCallId: part.toolCallId,
+                    state: "output-error",
+                    errorText: "Stopped by user",
+                })
+            }
+        })
+
+        stop()
+    }, [messages, addToolOutput, stop])
+
     // Send chat message with headers
     const sendChatMessage = (
         parts: any,
@@ -1359,6 +1386,7 @@ export default function ChatPanel({
                     status={status}
                     onSubmit={onFormSubmit}
                     onChange={handleInputChange}
+                    onStop={handleStop}
                     files={files}
                     onFileChange={handleFileChange}
                     pdfData={pdfData}

components/quota-limit-toast.tsx

@@ -79,7 +79,7 @@ export function QuotaLimitToast({
                 <p
                     dangerouslySetInnerHTML={{
                         __html: formatMessage(dict.quota.doubaoSponsorship, {
-                            link: "https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project",
+                            link: "https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project",
                         }),
                     }}
                 />

docs/cn/README_CN.md

@@ -19,7 +19,7 @@
 
 一个集成了AI功能的Next.js网页应用，与draw.io图表无缝结合。通过自然语言命令和AI辅助可视化来创建、修改和增强图表。
 
-> 注：感谢 <img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [字节跳动豆包](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) 的赞助支持，本项目的 Demo 现已接入强大的 K2-thinking 模型！
+> 注：感谢 <img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [字节跳动豆包](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) 的赞助支持，本项目的 Demo 现已接入强大的 K2-thinking 模型！
 
 https://github.com/user-attachments/assets/b2eef5f3-b335-4e71-a755-dc2e80931979
 
@@ -195,7 +195,7 @@ npm run dev
 
 ## 多提供商支持
 
--   [字节跳动豆包](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
+-   [字节跳动豆包](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
 -   AWS Bedrock（默认）
 -   OpenAI
 -   Anthropic
@@ -236,7 +236,7 @@ npm run dev
 
 ## 支持与联系
 
-**特别感谢[字节跳动豆包](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)赞助演示站点的 API Token 使用！** 注册火山引擎 ARK 平台即可获得50万免费Token！
+**特别感谢[字节跳动豆包](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)赞助演示站点的 API Token 使用！** 注册火山引擎 ARK 平台即可获得50万免费Token！
 
 如果您觉得这个项目有用，请考虑[赞助](https://github.com/sponsors/DayuanJiang)来帮助我托管在线演示站点！
 

docs/cn/ai-providers.md

@@ -13,7 +13,7 @@
 
 ### 豆包 (字节跳动火山引擎)
 
-> **免费 Token**：在 [火山引擎 ARK 平台](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) 注册，即可获得所有模型 50 万免费 Token！
+> **免费 Token**：在 [火山引擎 ARK 平台](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) 注册，即可获得所有模型 50 万免费 Token！
 
 ```bash
 DOUBAO_API_KEY=your_api_key

docs/en/ai-providers.md

@@ -13,7 +13,7 @@ This guide explains how to configure different AI model providers for next-ai-dr
 
 ### Doubao (ByteDance Volcengine)
 
-> **Free tokens**: Register on the [Volcengine ARK platform](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) to get 500K free tokens for all models!
+> **Free tokens**: Register on the [Volcengine ARK platform](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) to get 500K free tokens for all models!
 
 ```bash
 DOUBAO_API_KEY=your_api_key

docs/ja/README_JA.md

@@ -19,7 +19,7 @@
 
 AI機能とdraw.ioダイアグラムを統合したNext.jsウェブアプリケーションです。自然言語コマンドとAI支援の可視化により、ダイアグラムを作成、修正、強化できます。
 
-> 注：<img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) のご支援により、デモサイトに強力な K2-thinking モデルを導入しました！
+> 注：<img src="https://raw.githubusercontent.com/DayuanJiang/next-ai-draw-io/main/public/doubao-color.png" alt="" height="20" /> [ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project) のご支援により、デモサイトに強力な K2-thinking モデルを導入しました！
 
 https://github.com/user-attachments/assets/b2eef5f3-b335-4e71-a755-dc2e80931979
 
@@ -196,7 +196,7 @@ Next.jsアプリをデプロイする最も簡単な方法は、Next.jsの作成
 
 ## マルチプロバイダーサポート
 
--   [ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
+-   [ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)
 -   AWS Bedrock（デフォルト）
 -   OpenAI
 -   Anthropic
@@ -237,7 +237,7 @@ AWS BedrockとOpenRouter以外のすべてのプロバイダーはカスタム
 
 ## サポート＆お問い合わせ
 
-**デモサイトのAPIトークン使用を支援してくださった[ByteDance Doubao](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)に特別な感謝を申し上げます！** ARKプラットフォームに登録すると、50万トークンが無料でもらえます！
+**デモサイトのAPIトークン使用を支援してくださった[ByteDance Doubao](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)に特別な感謝を申し上げます！** ARKプラットフォームに登録すると、50万トークンが無料でもらえます！
 
 このプロジェクトが役に立ったら、ライブデモサイトのホスティングを支援するために[スポンサー](https://github.com/sponsors/DayuanJiang)をご検討ください！
 

docs/ja/ai-providers.md

@@ -13,7 +13,7 @@
 
 ### Doubao (ByteDance Volcengine)
 
-> **無料トークン**: [Volcengine ARK プラットフォーム](https://console.volcengine.com/ark/region:ark+cn-beijing/overview?briefPage=0&briefType=introduce&type=new&utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)に登録すると、すべてのモデルで使える50万トークンが無料で入手できます！
+> **無料トークン**: [Volcengine ARK プラットフォーム](https://www.volcengine.com/activity/newyear-referral?utm_campaign=doubao&utm_content=aidrawio&utm_medium=github&utm_source=coopensrc&utm_term=project)に登録すると、すべてのモデルで使える50万トークンが無料で入手できます！
 
 ```bash
 DOUBAO_API_KEY=your_api_key

lib/ai-providers.ts

@@ -1161,8 +1161,15 @@ export function supportsImageInput(modelId: string): boolean {
         lowerModelId.includes("vision") || lowerModelId.includes("vl")
 
     // Models that DON'T support image/vision input (unless vision variant)
-    // Kimi K2 models don't support images
-    if (lowerModelId.includes("kimi") && !hasVisionIndicator) {
+    // Kimi K2 doesn't support images, but K2.5 does
+    // Only block kimi-k2 specifically, not other Kimi models
+    if (
+        (lowerModelId.includes("kimi-k2") ||
+            lowerModelId.includes("kimi_k2")) &&
+        !hasVisionIndicator &&
+        !lowerModelId.includes("2.5") &&
+        !lowerModelId.includes("k2.5")
+    ) {
         return false
     }
 

lib/i18n/dictionaries/en.json

@@ -34,7 +34,7 @@
     "chat": {
         "placeholder": "Describe your diagram or upload a file...",
         "send": "Send",
-        "sending": "Sending...",
+        "stopGeneration": "Stop generation",
         "sendMessage": "Send message",
         "clearConversation": "Clear conversation",
         "diagramHistory": "Diagram history",

lib/i18n/dictionaries/ja.json

@@ -34,7 +34,7 @@
     "chat": {
         "placeholder": "ダイアグラムを説明するか、ファイルをアップロード...",
         "send": "送信",
-        "sending": "送信中...",
+        "stopGeneration": "生成を停止",
         "sendMessage": "メッセージを送信",
         "clearConversation": "会話をクリア",
         "diagramHistory": "ダイアグラム履歴",

lib/i18n/dictionaries/zh-Hant.json

@@ -34,7 +34,7 @@
     "chat": {
         "placeholder": "描述您的圖表或上傳檔案...",
         "send": "傳送",
-        "sending": "傳送中...",
+        "stopGeneration": "停止產生",
         "sendMessage": "傳送訊息",
         "clearConversation": "清除對話",
         "diagramHistory": "圖表歷史",

lib/i18n/dictionaries/zh.json

@@ -34,7 +34,7 @@
     "chat": {
         "placeholder": "描述您的图表或上传文件...",
         "send": "发送",
-        "sending": "发送中...",
+        "stopGeneration": "停止生成",
         "sendMessage": "发送消息",
         "clearConversation": "清除对话",
         "diagramHistory": "图表历史",

tests/unit/ai-providers.test.ts

@@ -168,6 +168,11 @@ describe("supportsImageInput", () => {
         expect(supportsImageInput("moonshot/kimi-k2")).toBe(false)
     })
 
+    it("returns true for Kimi K2.5 models (supports vision)", () => {
+        expect(supportsImageInput("kimi-k2.5")).toBe(true)
+        expect(supportsImageInput("moonshotai/kimi-k2.5")).toBe(true)
+    })
+
     it("returns false for DeepSeek text models", () => {
         expect(supportsImageInput("deepseek-chat")).toBe(false)
         expect(supportsImageInput("deepseek-coder")).toBe(false)