Catalog
Anthropic
Claude Sonnet 5
Best mix of speed and intelligence in the Claude 5 line
Official specs
- Main purpose
- Everyday coding and chat with fast latency
- Context window
- 1M tokens
- API pricing
- $2 input / $10 output per 1M tokens
- Access
- claude.ai, Anthropic API, Amazon Bedrock
- Knowledge cutoff
- January 2026
Capabilities
Key features
- 1M-token context
- Adaptive thinking
- 128K max output tokens
- Fast comparative latency
Notes
- Anthropic describes Sonnet 5 as the best combination of speed and intelligence, with fast comparative latency.
Limitations
- Not the top Claude for the hardest agentic coding (Opus 5) or cheapest/fastest (Haiku 4.5).
Context, pricing, cutoff, and positioning from Anthropic model docs.
Vendor source