removing restcting of available models, fixing max tokens issues in test

src/cloudcode-client.js

@@ -13,13 +13,11 @@ import crypto from 'crypto';
 import {
     ANTIGRAVITY_ENDPOINT_FALLBACKS,
     ANTIGRAVITY_HEADERS,
-    AVAILABLE_MODELS,
     MAX_RETRIES,
     MAX_WAIT_BEFORE_ERROR_MS,
     MIN_SIGNATURE_LENGTH
 } from './constants.js';
 import {
-    mapModelName,
     convertAnthropicToGoogle,
     convertGoogleToAnthropic
 } from './format-converter.js';
@@ -219,7 +217,7 @@ function parseResetTime(responseOrError, errorText = '') {
  * Build the wrapped request body for Cloud Code API
  */
 function buildCloudCodeRequest(anthropicRequest, projectId) {
-    const model = mapModelName(anthropicRequest.model);
+    const model = anthropicRequest.model;
     const googleRequest = convertAnthropicToGoogle(anthropicRequest);
 
     // Use stable session ID derived from first user message for cache continuity
@@ -247,7 +245,7 @@ function buildHeaders(token, model, accept = 'application/json') {
     };
 
     // Add interleaved thinking header for Claude thinking models
-    const isThinkingModel = model.toLowerCase().includes('thinking');
+    const isThinkingModel = model.toLowerCase().includes('claude') && model.toLowerCase().includes('thinking');
     if (isThinkingModel) {
         headers['anthropic-beta'] = 'interleaved-thinking-2025-05-14';
     }
@@ -273,8 +271,8 @@ function buildHeaders(token, model, accept = 'application/json') {
  * @throws {Error} If max retries exceeded or no accounts available
  */
 export async function sendMessage(anthropicRequest, accountManager) {
-    const model = mapModelName(anthropicRequest.model);
+    const model = anthropicRequest.model;
-    const isThinkingModel = model.toLowerCase().includes('thinking');
+    const isThinkingModel = model.toLowerCase().includes('claude') && model.toLowerCase().includes('thinking');
 
     // Retry loop with account failover
     // Ensure we try at least as many times as there are accounts to cycle through everyone
@@ -537,7 +535,7 @@ async function parseThinkingSSEResponse(response, originalModel) {
  * @throws {Error} If max retries exceeded or no accounts available
  */
 export async function* sendMessageStream(anthropicRequest, accountManager) {
-    const model = mapModelName(anthropicRequest.model);
+    const model = anthropicRequest.model;
 
     // Retry loop with account failover
     // Ensure we try at least as many times as there are accounts to cycle through everyone
@@ -931,19 +929,28 @@ async function* streamSSEResponse(response, originalModel) {
 
 /**
  * List available models in Anthropic API format
+ * Fetches models dynamically from the Cloud Code API
  *
- * @returns {{object: string, data: Array<{id: string, object: string, created: number, owned_by: string, description: string}>}} List of available models
+ * @param {string} token - OAuth access token
+ * @returns {Promise<{object: string, data: Array<{id: string, object: string, created: number, owned_by: string, description: string}>}>} List of available models
  */
-export function listModels() {
+export async function listModels(token) {
+    const data = await fetchAvailableModels(token);
+    if (!data || !data.models) {
+        return { object: 'list', data: [] };
+    }
+
+    const modelList = Object.entries(data.models).map(([modelId, modelData]) => ({
+        id: modelId,
+        object: 'model',
+        created: Math.floor(Date.now() / 1000),
+        owned_by: 'anthropic',
+        description: modelData.displayName || modelId
+    }));
+
     return {
         object: 'list',
-        data: AVAILABLE_MODELS.map(m => ({
+        data: modelList
-            id: m.id,
-            object: 'model',
-            created: Math.floor(Date.now() / 1000),
-            owned_by: 'anthropic',
-            description: m.description
-        }))
     };
 }
 

src/constants.js

@@ -56,44 +56,6 @@ export const ANTIGRAVITY_HEADERS = {
     })
 };
 
-// Model name mappings: Anthropic format → Antigravity format
-export const MODEL_MAPPINGS = {
-    // Claude models
-    'claude-3-opus-20240229': 'claude-opus-4-5-thinking',
-    'claude-3-5-opus-20240229': 'claude-opus-4-5-thinking',
-    'claude-3-5-sonnet-20241022': 'claude-sonnet-4-5',
-    'claude-3-5-sonnet-20240620': 'claude-sonnet-4-5',
-    'claude-3-sonnet-20240229': 'claude-sonnet-4-5',
-    'claude-sonnet-4-5': 'claude-sonnet-4-5',
-    'claude-sonnet-4-5-thinking': 'claude-sonnet-4-5-thinking',
-    'claude-opus-4-5-thinking': 'claude-opus-4-5-thinking'
-};
-
-// Available models exposed by this proxy
-export const AVAILABLE_MODELS = [
-    {
-        id: 'claude-sonnet-4-5',
-        name: 'Claude Sonnet 4.5 (Antigravity)',
-        description: 'Claude Sonnet 4.5 via Antigravity Cloud Code',
-        context: 200000,
-        output: 64000
-    },
-    {
-        id: 'claude-sonnet-4-5-thinking',
-        name: 'Claude Sonnet 4.5 Thinking (Antigravity)',
-        description: 'Claude Sonnet 4.5 with extended thinking via Antigravity',
-        context: 200000,
-        output: 64000
-    },
-    {
-        id: 'claude-opus-4-5-thinking',
-        name: 'Claude Opus 4.5 Thinking (Antigravity)',
-        description: 'Claude Opus 4.5 with extended thinking via Antigravity',
-        context: 200000,
-        output: 64000
-    }
-];
-
 // Default project ID if none can be discovered
 export const DEFAULT_PROJECT_ID = 'rising-fact-p41fc';
 
@@ -120,7 +82,6 @@ export const MAX_ACCOUNTS = 10; // Maximum number of accounts allowed
 export const MAX_WAIT_BEFORE_ERROR_MS = 120000; // 2 minutes - throw error if wait exceeds this
 
 // Thinking model constants
-export const CLAUDE_THINKING_MAX_OUTPUT_TOKENS = 64000; // Max output tokens for thinking models
 export const MIN_SIGNATURE_LENGTH = 50; // Minimum valid thinking signature length
 
 // Google OAuth configuration (from opencode-antigravity-auth)
@@ -144,8 +105,6 @@ export const OAUTH_REDIRECT_URI = `http://localhost:${OAUTH_CONFIG.callbackPort}
 export default {
     ANTIGRAVITY_ENDPOINT_FALLBACKS,
     ANTIGRAVITY_HEADERS,
-    MODEL_MAPPINGS,
-    AVAILABLE_MODELS,
     DEFAULT_PROJECT_ID,
     TOKEN_REFRESH_INTERVAL_MS,
     REQUEST_BODY_LIMIT,
@@ -157,7 +116,6 @@ export default {
     MAX_RETRIES,
     MAX_ACCOUNTS,
     MAX_WAIT_BEFORE_ERROR_MS,
-    CLAUDE_THINKING_MAX_OUTPUT_TOKENS,
     MIN_SIGNATURE_LENGTH,
     OAUTH_CONFIG,
     OAUTH_REDIRECT_URI

src/format-converter.js

@@ -9,20 +9,9 @@
 
 import crypto from 'crypto';
 import {
-    MODEL_MAPPINGS,
-    CLAUDE_THINKING_MAX_OUTPUT_TOKENS,
     MIN_SIGNATURE_LENGTH
 } from './constants.js';
 
-/**
- * Map Anthropic model name to Antigravity model name
- * @param {string} anthropicModel - Anthropic format model name (e.g., 'claude-3-5-sonnet-20241022')
- * @returns {string} Antigravity format model name (e.g., 'claude-sonnet-4-5')
- */
-export function mapModelName(anthropicModel) {
-    return MODEL_MAPPINGS[anthropicModel] || anthropicModel;
-}
-
 /**
  * Check if a part is a thinking block
  * @param {Object} part - Content part to check
@@ -509,13 +498,6 @@ export function convertAnthropicToGoogle(anthropicRequest) {
         const thinkingBudget = thinking?.budget_tokens;
         if (thinkingBudget) {
             thinkingConfig.thinking_budget = thinkingBudget;
-
-            // Ensure maxOutputTokens is large enough when budget is specified
-            if (!googleRequest.generationConfig.maxOutputTokens ||
-                googleRequest.generationConfig.maxOutputTokens <= thinkingBudget) {
-                googleRequest.generationConfig.maxOutputTokens = CLAUDE_THINKING_MAX_OUTPUT_TOKENS;
-            }
-
             console.log('[FormatConverter] Thinking enabled with budget:', thinkingBudget);
         } else {
             console.log('[FormatConverter] Thinking enabled (no budget specified)');
@@ -725,7 +707,6 @@ export function convertGoogleToAnthropic(googleResponse, model) {
 }
 
 export default {
-    mapModelName,
     convertAnthropicToGoogle,
     convertGoogleToAnthropic
 };

src/server.js

@@ -193,7 +193,7 @@ app.get('/account-limits', async (req, res) => {
             }
         }
 
-        const sortedModels = Array.from(allModelIds).filter(m => m.includes('claude')).sort();
+        const sortedModels = Array.from(allModelIds).sort();
 
         // Return ASCII table format
         if (format === 'table') {
@@ -352,8 +352,32 @@ app.post('/refresh-token', async (req, res) => {
 /**
  * List models endpoint (OpenAI-compatible format)
  */
-app.get('/v1/models', (req, res) => {
+app.get('/v1/models', async (req, res) => {
-    res.json(listModels());
+    try {
+        await ensureInitialized();
+        const account = accountManager.pickNext();
+        if (!account) {
+            return res.status(503).json({
+                type: 'error',
+                error: {
+                    type: 'api_error',
+                    message: 'No accounts available'
+                }
+            });
+        }
+        const token = await accountManager.getTokenForAccount(account);
+        const models = await listModels(token);
+        res.json(models);
+    } catch (error) {
+        console.error('[API] Error listing models:', error);
+        res.status(500).json({
+            type: 'error',
+            error: {
+                type: 'api_error',
+                message: error.message
+            }
+        });
+    }
 });
 
 /**

tests/test-caching-streaming.cjs

@@ -36,7 +36,7 @@ async function runTests() {
 
     const turn1 = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 2048,
+        max_tokens: 16000,
         stream: true,
         system: LARGE_SYSTEM_PROMPT,
         thinking: { type: 'enabled', budget_tokens: 5000 },
@@ -90,7 +90,7 @@ async function runTests() {
 
     const turn2 = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 2048,
+        max_tokens: 16000,
         stream: true,
         system: LARGE_SYSTEM_PROMPT,
         thinking: { type: 'enabled', budget_tokens: 5000 },

tests/test-images.cjs

@@ -28,7 +28,7 @@ async function runTests() {
 
     const result1 = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 2048,
+        max_tokens: 16000,
         stream: true,
         thinking: { type: 'enabled', budget_tokens: 8000 },
         messages: [{
@@ -79,7 +79,7 @@ async function runTests() {
 
     const result2 = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 2048,
+        max_tokens: 16000,
         stream: true,
         thinking: { type: 'enabled', budget_tokens: 8000 },
         messages: [

tests/test-interleaved-thinking.cjs

@@ -30,7 +30,7 @@ async function runTests() {
 
     const result = await streamRequest({
         model: 'claude-opus-4-5-thinking',
-        max_tokens: 8192,
+        max_tokens: 32000,
         stream: true,
         tools,
         thinking: { type: 'enabled', budget_tokens: 16000 },
@@ -93,7 +93,7 @@ Please do this step by step, reading each file before modifying.`
 
         const result2 = await streamRequest({
             model: 'claude-opus-4-5-thinking',
-            max_tokens: 8192,
+            max_tokens: 32000,
             stream: true,
             tools,
             thinking: { type: 'enabled', budget_tokens: 16000 },

tests/test-multiturn-thinking-tools-streaming.cjs

@@ -33,7 +33,7 @@ async function runTests() {
 
     const turn1 = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 4096,
+        max_tokens: 16000,
         stream: true,
         tools,
         thinking: { type: 'enabled', budget_tokens: 10000 },
@@ -102,7 +102,7 @@ drwxr-xr-x   4 user  staff   128 Dec 19 10:00 tests`
 
         const turn2 = await streamRequest({
             model: 'claude-sonnet-4-5-thinking',
-            max_tokens: 4096,
+            max_tokens: 16000,
             stream: true,
             tools,
             thinking: { type: 'enabled', budget_tokens: 10000 },

tests/test-multiturn-thinking-tools.cjs

@@ -38,7 +38,7 @@ async function runTests() {
 
     const turn1 = await makeRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 4096,
+        max_tokens: 16000,
         stream: false,
         tools,
         thinking: { type: 'enabled', budget_tokens: 10000 },
@@ -92,7 +92,7 @@ async function runTests() {
 
         const turn2 = await makeRequest({
             model: 'claude-sonnet-4-5-thinking',
-            max_tokens: 4096,
+            max_tokens: 16000,
             stream: false,
             tools,
             thinking: { type: 'enabled', budget_tokens: 10000 },
@@ -156,7 +156,7 @@ async function runTests() {
 
             const turn3 = await makeRequest({
                 model: 'claude-sonnet-4-5-thinking',
-                max_tokens: 4096,
+                max_tokens: 16000,
                 stream: false,
                 tools,
                 thinking: { type: 'enabled', budget_tokens: 10000 },

tests/test-thinking-signatures.cjs

@@ -31,7 +31,7 @@ async function runTests() {
 
     const turn1Result = await streamRequest({
         model: 'claude-sonnet-4-5-thinking',
-        max_tokens: 4096,
+        max_tokens: 16000,
         stream: true,
         tools,
         thinking: { type: 'enabled', budget_tokens: 10000 },
@@ -95,7 +95,7 @@ async function runTests() {
 
         const turn2Result = await streamRequest({
             model: 'claude-sonnet-4-5-thinking',
-            max_tokens: 4096,
+            max_tokens: 16000,
             stream: true,
             tools,
             thinking: { type: 'enabled', budget_tokens: 10000 },