What: Users connecting through Anthropic's API or Google Vertex AI now have access to previously restricted beta features How to use:
# For Anthropic API (default - no special configuration needed)
claude "Analyze this 800,000 token codebase"
# For Google Vertex AI
export CLAUDE_CODE_USE_VERTEX=true
claude "Use interleaved thinking to solve this complex problem"Details:
- Enables "interleaved-thinking-2025-05-14" beta feature for enhanced reasoning capabilities
- Enables "context-1m-2025-08-07" beta feature supporting up to 1 million token context windows
- These features are automatically included in API requests when not using AWS Bedrock
- No additional flags or configuration needed - features activate automatically based on your backend