Anthropic
Claude Opus 4.8 Thinking
Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents
Model facts
- Context window
- 1M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $5 per 1M tokens
- Cheapest paid output
- $25 per 1M tokens
- Open weights
- no
- Providers
- 2
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image, pdf.
Observed price history
- 2026-08-24: $5 input / $25 output per 1M tokens
API providers
- NanoGPT — model id anthropic/claude-opus-4.8:thinking; $5 input / $25 output per 1M tokens; provider documentation
- Arena — model id claude-opus-4-8-thinking; not published input / not published output per 1M tokens; provider documentation