Claude Sonnet 5
by Kilo Gateway · family claude-sonnet · listed Jun 2026RTV
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Current rates USD per 1M tokens
Input$2.00
Output$10.00
Cache read$0.20
Cache write$2.50
Against the market
On the record
- Model id
anthropic/claude-sonnet-5- Context window
- 1M tokens
- Max output
- 128K tokens
- Input modalities
- text, image, pdf
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- no
- Knowledge cutoff
- Jan 2026
- Released
- 2026-06-30
- Last updated
- 2026-06-30
- Provider docs
- kilo.ai
Back of the envelope
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