forkmeplease · pull · Jun 25, 2026 · Jun 22, 2026 · Jun 23, 2026 · Jun 25, 2026
diff --git a/out/cli.cjs b/out/cli.cjs
@@ -65273,7 +65273,7 @@ function G3(t2, e3) {
 // package.json
 var package_default = {
   name: "opencommit",
-  version: "3.3.2",
+  version: "3.3.5",
   description: "Auto-generate impressive commits in 1 second. Killing lame commits with AI \u{1F92F}\u{1F52B}",
   keywords: [
     "git",
@@ -67360,11 +67360,10 @@ var MODEL_LIST = {
     "gpt-4o-mini-2024-07-18"
   ],
   anthropic: [
-    "claude-sonnet-4-20250514",
-    "claude-opus-4-20250514",
-    "claude-3-7-sonnet-20250219",
-    "claude-3-5-sonnet-20241022",
-    "claude-3-5-haiku-20241022"
+    "claude-sonnet-4-6",
+    "claude-opus-4-8",
+    "claude-sonnet-4-5-20250929",
+    "claude-haiku-4-5-20251001"
   ],
   gemini: [
     "gemini-1.5-flash",
@@ -68135,7 +68134,7 @@ var PROVIDER_API_KEY_URLS = {
 };
 var RECOMMENDED_MODELS = {
   ["openai" /* OPENAI */]: "gpt-4o-mini",
-  ["anthropic" /* ANTHROPIC */]: "claude-sonnet-4-20250514",
+  ["anthropic" /* ANTHROPIC */]: "claude-sonnet-4-6",
   ["gemini" /* GEMINI */]: "gemini-1.5-flash",
   ["groq" /* GROQ */]: "llama3-70b-8192",
   ["mistral" /* MISTRAL */]: "mistral-small-latest",
@@ -74695,7 +74694,7 @@ function extractErrorMessage(error) {
 }
 function isModelNotFoundMessage(message) {
   const lowerMessage = message.toLowerCase();
-  return lowerMessage.includes("model") && (lowerMessage.includes("not found") || lowerMessage.includes("does not exist") || lowerMessage.includes("invalid") || lowerMessage.includes("pull")) || lowerMessage.includes("does_not_exist");
+  return lowerMessage.includes("model") && (lowerMessage.includes("not found") || lowerMessage.includes("does not exist") || lowerMessage.includes("pull")) || lowerMessage.includes("does_not_exist");
 }
 function isInsufficientCreditsMessage(message) {
   const lowerMessage = message.toLowerCase();
@@ -74726,6 +74725,9 @@ function normalizeEngineError(error, provider, model) {
     case 504:
       return new ServiceUnavailableError(provider, statusCode, message);
   }
+  if (statusCode === 400) {
+    return error instanceof Error ? error : new Error(message);
+  }
   if (isModelNotFoundMessage(message)) {
     return new ModelNotFoundError(model, provider, 404);
   }
@@ -74816,7 +74818,7 @@ var AnthropicEngine = class {
         temperature: 0,
         max_tokens: this.config.maxTokensOutput
       };
-      if (!/claude.*-4-5/.test(params.model)) {
+      if (!/claude.*-4-(?:5|[6-9])/.test(params.model)) {
         params.top_p = 0.1;
       }
       try {
@@ -84644,6 +84646,9 @@ var OpenAiEngine = class {
         clientOptions.defaultHeaders = headers;
       }
     }
+    if (!clientOptions.fetch && typeof globalThis.fetch === "function") {
+      clientOptions.fetch = (...args) => globalThis.fetch(...args);
+    }
     this.client = new OpenAI(clientOptions);
   }
 };

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "opencommit",
-  "version": "3.3.2",
+  "version": "3.3.5",
   "description": "Auto-generate impressive commits in 1 second. Killing lame commits with AI 🤯🔫",
   "keywords": [
     "git",

diff --git a/src/commands/config.ts b/src/commands/config.ts
@@ -70,11 +70,10 @@ export const MODEL_LIST = {
   ],
 
   anthropic: [
-    'claude-sonnet-4-20250514',
-    'claude-opus-4-20250514',
-    'claude-3-7-sonnet-20250219',
-    'claude-3-5-sonnet-20241022',
-    'claude-3-5-haiku-20241022'
+    'claude-sonnet-4-6',
+    'claude-opus-4-8',
+    'claude-sonnet-4-5-20250929',
+    'claude-haiku-4-5-20251001'
   ],
 
   gemini: [
@@ -893,7 +892,7 @@ export const PROVIDER_API_KEY_URLS: Record<string, string | null> = {
 
 export const RECOMMENDED_MODELS: Record<string, string> = {
   [OCO_AI_PROVIDER_ENUM.OPENAI]: 'gpt-4o-mini',
-  [OCO_AI_PROVIDER_ENUM.ANTHROPIC]: 'claude-sonnet-4-20250514',
+  [OCO_AI_PROVIDER_ENUM.ANTHROPIC]: 'claude-sonnet-4-6',
   [OCO_AI_PROVIDER_ENUM.GEMINI]: 'gemini-1.5-flash',
   [OCO_AI_PROVIDER_ENUM.GROQ]: 'llama3-70b-8192',
   [OCO_AI_PROVIDER_ENUM.MISTRAL]: 'mistral-small-latest',

diff --git a/src/engine/anthropic.ts b/src/engine/anthropic.ts
@@ -46,8 +46,8 @@ export class AnthropicEngine implements AiEngine {
       max_tokens: this.config.maxTokensOutput
     };
 
-    // add top_p for non-4.5 models
-    if (!/claude.*-4-5/.test(params.model)) {
+    // Anthropic rejects simultaneous temperature and top_p on Claude 4.5+
+    if (!/claude.*-4-(?:5|[6-9])/.test(params.model)) {
       params.top_p = 0.1;
     }
 

diff --git a/src/engine/openAi.ts b/src/engine/openAi.ts
@@ -36,6 +36,15 @@ export class OpenAiEngine implements AiEngine {
       }
     }
 
+    // The OpenAI SDK's internal fetch may resolve before globalThis.fetch is
+    // available in some Node.js versions, causing premature connection errors.
+    // Explicitly binding globalThis.fetch here defers resolution to call time,
+    // ensuring the runtime's native fetch is used instead of the SDK's bundled
+    // undici — which also avoids double-initialisation in newer Node (>=18).
+    if (!clientOptions.fetch && typeof globalThis.fetch === 'function') {
+      clientOptions.fetch = (...args) => globalThis.fetch(...args);
+    }
+
     this.client = new OpenAI(clientOptions);
   }
 

diff --git a/src/utils/engineErrorHandler.ts b/src/utils/engineErrorHandler.ts
@@ -93,7 +93,6 @@ function isModelNotFoundMessage(message: string): boolean {
     (lowerMessage.includes('model') &&
       (lowerMessage.includes('not found') ||
         lowerMessage.includes('does not exist') ||
-        lowerMessage.includes('invalid') ||
         lowerMessage.includes('pull'))) ||
     lowerMessage.includes('does_not_exist')
   );
@@ -171,6 +170,10 @@ export function normalizeEngineError(
   }
 
   // Handle based on error message content
+  if (statusCode === 400) {
+    return error instanceof Error ? error : new Error(message);
+  }
+
   if (isModelNotFoundMessage(message)) {
     return new ModelNotFoundError(model, provider, 404);
   }

diff --git a/test/unit/anthropic.test.ts b/test/unit/anthropic.test.ts
@@ -0,0 +1,88 @@
+import { OpenAI } from 'openai';
+import { AnthropicEngine } from '../../src/engine/anthropic';
+
+describe('AnthropicEngine', () => {
+  const baseConfig = {
+    apiKey: 'test-anthropic-key',
+    maxTokensInput: 4096,
+    maxTokensOutput: 256
+  };
+
+  const messages: Array<OpenAI.Chat.Completions.ChatCompletionMessageParam> = [
+    { role: 'system', content: 'system message' },
+    { role: 'user', content: 'diff --git a/file b/file' }
+  ];
+
+  it('does not send top_p for Claude 4.5 models', async () => {
+    const engine = new AnthropicEngine({
+      ...baseConfig,
+      model: 'claude-haiku-4-5-20251001'
+    });
+
+    const create = jest
+      .spyOn(engine.client.messages, 'create')
+      .mockResolvedValue({
+        content: [{ type: 'text', text: 'feat(theme): update colors' }]
+      } as any);
+
+    await engine.generateCommitMessage(messages);
+
+    expect(create).toHaveBeenCalledWith(
+      expect.objectContaining({
+        model: 'claude-haiku-4-5-20251001',
+        temperature: 0,
+        max_tokens: 256
+      })
+    );
+    expect(create).toHaveBeenCalledWith(
+      expect.not.objectContaining({
+        top_p: expect.anything()
+      })
+    );
+  });
+
+  it('does not send top_p for Claude 4.6+ models', async () => {
+    const engine = new AnthropicEngine({
+      ...baseConfig,
+      model: 'claude-sonnet-4-6'
+    });
+
+    const create = jest
+      .spyOn(engine.client.messages, 'create')
+      .mockResolvedValue({
+        content: [{ type: 'text', text: 'feat(theme): update colors' }]
+      } as any);
+
+    await engine.generateCommitMessage(messages);
+
+    expect(create).toHaveBeenCalledWith(
+      expect.not.objectContaining({
+        top_p: expect.anything()
+      })
+    );
+  });
+
+  it('sends top_p for legacy Claude models', async () => {
+    const engine = new AnthropicEngine({
+      ...baseConfig,
+      model: 'claude-sonnet-4-20250514'
+    });
+
+    const create = jest
+      .spyOn(engine.client.messages, 'create')
+      .mockResolvedValue({
+        content: [{ type: 'text', text: 'feat(theme): update colors' }]
+      } as any);
+
+    await engine.generateCommitMessage(messages);
+
+    expect(create).toHaveBeenCalledWith(
+      expect.objectContaining({
+        model: 'claude-sonnet-4-20250514',
+        temperature: 0,
+        top_p: 0.1,
+        max_tokens: 256
+      })
+    );
+  });
+});
diff --git a/test/unit/engineErrorHandler.test.ts b/test/unit/engineErrorHandler.test.ts
@@ -0,0 +1,37 @@
+import { normalizeEngineError } from '../../src/utils/engineErrorHandler';
+import { ModelNotFoundError } from '../../src/utils/errors';
+
+describe('normalizeEngineError', () => {
+  it('does not classify Anthropic temperature/top_p 400 as model not found', () => {
+    const error = Object.assign(
+      new Error(
+        '`temperature` and `top_p` cannot both be specified for this model. Please use only one.'
+      ),
+      { status: 400 }
+    );
+
+    const normalized = normalizeEngineError(
+      error,
+      'anthropic',
+      'claude-sonnet-4-6'
+    );
+
+    expect(normalized).not.toBeInstanceOf(ModelNotFoundError);
+    expect(normalized.message).toContain('temperature');
+  });
+
+  it('classifies genuine model-not-found errors', () => {
+    const error = Object.assign(
+      new Error('model: claude-sonnet-4-20250514 not found'),
+      { status: 404 }
+    );
+
+    const normalized = normalizeEngineError(
+      error,
+      'anthropic',
+      'claude-sonnet-4-20250514'
+    );
+
+    expect(normalized).toBeInstanceOf(ModelNotFoundError);
+  });
+});