Claude Opus 5.5: API pricing, providers and specs
Claude Opus 5.5 is a text model by Anthropic. 33 providers serve it, from $16 to $22.10 /1M; the lowest price is at APIMart.
How Claude Opus 5.5 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $16 /1M, its lowest price is above 93% 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 #1 of the 64 comparable models scored there.
- 33 providers serve it; 99% of comparable models have fewer.
Claude Opus 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 | $3.20/1M | $16/1M | — | — |
 CometAPI | $3.20/1M | From$16/1M | — | — |
| AnthropicOfficial | $4/1M | From$20/1M | $0.20/1M | 1M |
| ZenMux | $4/1M | $20/1M | $0.20/1M | 1M |
 CrossModel | $4/1M | $20/1M | $0.20/1M | — |
 Requesty | $4/1M | From$20/1M | $0.20/1M | 1M |
 Venice AI | $4/1M | From$20/1M | $0.20/1M | — |
 Boundless | $4/1M | $20/1M | $0.20/1M | — |
| OpenCode | $4/1M | $20/1M | $0.20/1M | — |
 DigitalOcean | $4/1M | $20/1M | $0.20/1M | — |
| Vercel AI Gateway | $4/1M | From$20/1M | $0.20/1M | 1M |
 NEAR AI Cloud | $4/1M | $20/1M | $0.20/1M | 1M |
 Prime Inference | $4/1M | $20/1M | — | — |
 AIHubMix | $4/1M | $20/1M | $0.20/1M | 1M |
 NanoGPT | $4/1M | $20/1M | — | — |
| AI/ML API | $4/1M | $20/1M | $0.20/1M | — |
| OpenRouter | $4/1M | From$20/1M | $0.20/1M | 1M |
| DevPass (LLM Gateway) | $4/1M | From$20/1M | $0.20/1M | — |
 Deep Infra | $4/1M | $20/1M | $0.20/1M | — |
 Perplexity | $4/1M | $20/1M | $0.20/1M | — |
 APIYI | $4/1M | $20/1M | — | — |
 LaoZhang API | $4/1M | $20/1M | — | — |
| Atlas Cloud | $4/1M | $20/1M | $0.20/1M | — |
 Amazon Bedrock | $4/1M | From$20/1M | $0.20/1M | — |
 Vertex | $4/1M | From$20/1M | $0.20/1M | — |
 OrcaRouter | $4/1M | $20/1M | $0.20/1M | 1M |
 FastRouter | $4/1M | $20/1M | $0.20/1M | 1M |
 Jiekou.AI | $4/1M | $20/1M | $0.20/1M | — |
 Impossibl | $4/1M | $20/1M | $0.20/1M | — |
 Opper | $4/1M | $20/1M | $0.20/1M | — |
| Replicate | $4/1M | $20/1M | — | — |
 Kenari | $4.42/1M | $22.09/1M | $0.442/1M | — |
 Cortecs | $4.42/1M | $22.10/1M | $0.221/1M | — |
- APIMart$16
- CometAPIFrom$16
- ZenMux$20
- CrossModel$20
- Boundless$20
- OpenCode$20
- DigitalOcean$20
- NEAR AI Cloud$20
- Prime Inference$20
- AIHubMix$20
- NanoGPT$20
- AI/ML API$20
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 22, 2026
- License
- proprietary
- Open weights
- No, API only
- Arena score
- 1807WebDev
- Monthly searches
- 405K
Alternatives to Claude Opus 5.5
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Claude Opus 5.5this model | $16/1M | 1M | 1807 | 33 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
| GPT-6 Astra | $25/1M | 1.05M | 1775 | 31 |
 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 |
| GPT-5 | $8/1M | 400K | 1418 | 26 |
| GPT-5.6 | $10/1M | 1.05M | 1615 | 29 |
More from Anthropic
Claude Opus 5.5 FAQ
APIMart, at $16 /1M. 33 providers serve Claude Opus 5.5; the table above lists every one with its price.
Claude Opus 5.5 reads up to 1M tokens per request and writes up to 128K.
No. Claude Opus 5.5 is only available through an API; Anthropic does not publish its weights.
33 API providers serve Claude Opus 5.5. Compare their prices above, or open a provider to see everything it offers.
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