Claude Sonnet 5.5: API pricing, providers and specs
Claude Sonnet 5.5 is a text model by Anthropic. 32 providers serve it, from $8 to $11.30 /1M; the lowest price is at APIMart.
How Claude Sonnet 5.5 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $8 /1M, its lowest price is above 83% of comparable models (median $1.10).
- Its 1M-token context window is larger than 67% of them (median 262K), about 1500 pages of text.
- On LMArena's WebDev board it ranks #3 of the 64 comparable models scored there.
- 32 providers serve it; 98% of comparable models have fewer.
Claude Sonnet 5.5 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| APIMart | $1.60/1M | $8/1M | — | — |
 CometAPI | $1.60/1M | $8/1M | $0.08/1M | — |
| AnthropicOfficial | $2/1M | From$10/1M | $0.10/1M | 1M |
 CrossModel | $2/1M | $10/1M | $0.10/1M | — |
 Requesty | $2/1M | From$10/1M | $0.20/1M | 1M |
 Venice AI | $2/1M | $10/1M | $0.10/1M | — |
| OpenCode | $2/1M | $10/1M | $0.20/1M | — |
 DigitalOcean | $2/1M | $10/1M | $0.20/1M | — |
| Vercel AI Gateway | $2/1M | From$10/1M | $0.10/1M | 1M |
 NEAR AI Cloud | $2/1M | $10/1M | $0.10/1M | 1M |
 Prime Inference | $2/1M | $10/1M | — | — |
 AIHubMix | $2/1M | $10/1M | $0.10/1M | 1M |
 NanoGPT | $2/1M | $10/1M | — | — |
| AI/ML API | $2/1M | $10/1M | $0.20/1M | — |
| OpenRouter | $2/1M | From$10/1M | $0.10/1M | 1M |
| DevPass (LLM Gateway) | $2/1M | From$10/1M | $0.10/1M | — |
 Deep Infra | $2/1M | $10/1M | — | — |
 Perplexity | $2/1M | $10/1M | $0.10/1M | — |
 APIYI | $2/1M | $10/1M | — | — |
 LaoZhang API | $2/1M | $10/1M | — | — |
| Atlas Cloud | $2/1M | $10/1M | $0.20/1M | — |
| ZenMux | $2/1M | $10/1M | $0.10/1M | 1M |
 Amazon Bedrock | $2/1M | From$10/1M | $0.10/1M | — |
 Vertex | $2/1M | From$10/1M | $0.10/1M | — |
 OrcaRouter | $2/1M | $10/1M | $0.20/1M | 1M |
 FastRouter | $2/1M | $10/1M | $0.20/1M | 1M |
 Jiekou.AI | $2/1M | $10/1M | $0.10/1M | — |
 Impossibl | $2/1M | $10/1M | $0.20/1M | — |
 Opper | $2/1M | $10/1M | $0.10/1M | — |
 Poe | $2.02/1M | $10.10/1M | $0.202/1M | 1M |
 Kenari | $2.21/1M | $11.04/1M | $0.828/1M | — |
 Cortecs | $2.26/1M | $11.30/1M | $0.226/1M | — |
- APIMart$8
- CometAPI$8
- CrossModel$10
- Venice AI$10
- OpenCode$10
- DigitalOcean$10
- NEAR AI Cloud$10
- Prime Inference$10
- AIHubMix$10
- NanoGPT$10
- AI/ML API$10
- Deep Infra$10
Specs
- Type
- Text
- Maker
- Anthropic
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 1M≈ 1500 pages of text
- Max output
- 128K
- Capabilities
- Prompt caching, JSON, Reasoning, Tool calling, Vision
- Released
- Sep 28, 2026
- License
- proprietary
- Open weights
- No, API only
- Arena score
- 1767WebDev
- Monthly searches
- 102K
Alternatives to Claude Sonnet 5.5
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Claude Sonnet 5.5this model | $8/1M | 1M | 1767 | 32 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
 Muse Wonder | $16/1M | 1.05M | — | 14 |
| GPT-6.1 Sol | $8/1M | 1.05M | 1749 | 27 |
| GPT-6 Sol | $8/1M | 1.05M | 1682 | 28 |
 Qwen3.8 2.4T A95B | $4.11/1M | 1M | — | 22 |
| Grok 4.7 | $4.80/1M | 500K | 1637 | 28 |
| Muse Spark 1.3 | $4.25/1M | 1.05M | 1657 | 11 |
More from Anthropic
Claude Sonnet 5.5 FAQ
APIMart, at $8 /1M. 32 providers serve Claude Sonnet 5.5; the table above lists every one with its price.
Claude Sonnet 5.5 reads up to 1M tokens per request and writes up to 128K.
No. Claude Sonnet 5.5 is only available through an API; Anthropic does not publish its weights.
32 API providers serve Claude Sonnet 5.5. Compare their prices above, or open a provider to see everything it offers.
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