Added supports_prompt_caching: true to all Claude models: - claude-sonnet-4 - claude-sonnet-4.5 - claude-3-5-sonnet - claude-3-opus - claude-3-haiku This enables Anthropic's prompt caching feature across all models, significantly reducing latency and costs for repeated requests with the same system prompts. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>