Anthropic
Claude Sonnet 5 Thinking
Everyday Claude agent model for coding, planning, browsing, and general work
Model facts
- Context window
- 1M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $2 per 1M tokens
- Cheapest paid output
- $10 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image, pdf.
Observed price history
- 2026-08-24: $2 input / $10 output per 1M tokens
API providers
- NanoGPT — model id anthropic/claude-sonnet-5:thinking; $2 input / $10 output per 1M tokens; provider documentation