Claude Sonnet 5.5
Active · claude-sonnet-5-5
- Input / 1M
- $2.00
- Cached input / 1M
- $0.10
- Output / 1M
- $10.00
- Context
- 1M
- Max output
- 128k
- Modalities
- n/a
- Released
- 28 Sep 2026
- Status
- Active
- API id
- claude-sonnet-5-5
- Updated
- 27 Oct 2026
Which rate this is
Base input / cache hit / output
Base input and output rates, plus cache hits and refreshes at $0.10 per 1M tokens. The pricing page also lists 5-minute cache writes at $2.50 and 1-hour cache writes at $4. Context is published as 1M tokens and max output as 128K. Modalities were not listed on the pages checked.
Sources
Updated 27 Oct 2026.
Related
- Claude Fable 5.1 · input $10.00 · output $50.00 · Base input / cache hit / output
- Claude Opus 5.5 · input $4.00 · output $20.00 · Base input / cache hit / output
- Claude Haiku 5.5 · input $0.10 · output $0.50 · Prompts up to 100K tokens
Same-tier comparisons
- Claude Sonnet 5.5 vs Gemini 4 Argon · Google
- Claude Sonnet 5.5 vs GPT-6.1 Sol · OpenAI