Claude Opus 4.6 Thinking Integration

Overview

This document describes the integration of Claude Opus 4.6 Thinking model into the Antigravity Proxy.

Changes Made

Backend (Rust)

model_mapping.rs

• Added direct mapping for claude-opus-4-6-thinking
• Added alias mappings: claude-opus-4-6, claude-opus-4-6-20260201
• Updated normalize_to_standard_id() to include the new model

request.rs

• Updated should_enable_thinking_by_default() to auto-enable thinking for Opus 4.6 models

Frontend (TypeScript/React)

modelConfig.ts

• Added claude-opus-4-6-thinking entry with protectedKey: 'claude-opus'

useProxyModels.tsx

• Added model to the models array with group Claude 4.6

Usage

API Request Example

{
  "model": "claude-opus-4-6-thinking",
  "messages": [...]
}

Supported Aliases

• claude-opus-4-6-thinking (canonical)
• claude-opus-4-6
• claude-opus-4-6-20260201

Notes

• Thinking mode is auto-enabled for Opus 4.6 models
• Quota protection uses the shared claude-opus key
• No localization changes required (reuses existing keys)