Official documentationNot tested by BlueFish
Anthropic Claude API
Official Anthropic Claude API documenting Claude Sonnet 5.5 and Opus 5.5.
A quick glossary
Models generate and reason. Agents use tools to work on tasks. A harness manages an agent’s environment. MCP connects tools and data. Skills are reusable task guidance.
Research notes
Official Anthropic Claude API documenting Claude Sonnet 5.5 and Opus 5.5.
Validation
- Official Anthropic Claude API documenting Claude Sonnet 5.5 and Opus 5.5.
Cost
Usage billing; see current official prices
claude-sonnet-5-5 Standard, USD/1M tokens: input 2, cache hit 0.10, 5-minute write 2.50, 1-hour write 4, output 10.
Limits & boundaries
- Official documentation reviewed; this site has not run this combination or tested the device.
Original sources
- Claude · Model documentation ↗
platform.claude.com · 2026-10-16 · Official documentation
- Claude · Pricing ↗
platform.claude.com · 2026-10-16 · Official documentation
- Claude · Data retention ↗
platform.claude.com · 2026-10-16 · Official documentation
- Anthropic · Supported regions ↗
www.anthropic.com · 2026-10-16 · Official documentation