claude-opus-4-5-migration

原文涵盖的主题

• Opus 4.5 Migration Guide
• Migration Workflow
• Model String Updates
• Unsupported Beta Headers
• Target Model Strings (Opus 4.5)
• Source Model Strings to Replace
• Prompt Adjustments
• 1. Tool Overtriggering

One-shot migration from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. 1. Search codebase for model strings and API calls 2. Update model strings to Opus 4.5 (see platform-specific strings below) 3. Remove unsupported beta headers 4. Add effort parameter set to "high" (see references/effort.md) 5. Summarize all changes made 6. Tell the user: "If you encounter any issues with Opus 4.5, let me know and I can help adjust your prompts." Identify which platform the codebase uses, then replace model strings accordingly. Remove the context-1m-2025-08-07 beta header if present—it is not yet supported with Opus 4.5. Leave a comment noting this: | Platform | Opus 4.5 Model String | |----------|----------------------| | Anthropic API (1P) | claude-opus-4-5-20251101 | | AWS Bedrock | anthropic.claude-opus-4-5-20251101-v1:0 | | Google Vertex AI | claude-opus-4-5@20251101 | | Azure AI Foundry | claude-opus-4-5-20251101 | | Source Model | Anthropic API (1P) | AWS Bedrock | Google Vertex AI | |--------------|-------------------|-------------|------------------| | Sonnet 4.0 | claude-sonnet-4-20250514 | anthropic.claude-sonnet-4-20250514-v1:0 | claude-sonnet-4@20250514 | | Sonnet 4.5 | claude-son

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