Claude Opus 4.1: API pricing, providers and specs
Claude Opus 4.1 is a text model by Anthropic. 10 providers serve it, from $75 to $82.50 /1M; the lowest price is at ZenMux.
A newer version is out: Claude Opus 5.5 · released Sep 22, 2026
How Claude Opus 4.1 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $75 /1M, its lowest price is above 99% of comparable models (median $1.10).
- Its 200K-token context window is larger than 32% of them (median 262K), about 300 pages of text.
- 10 providers serve it; 77% of comparable models have fewer.
Claude Opus 4.1 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 |
|---|---|---|---|---|
| ZenMux | $15/1M | $75/1M | $1.50/1M | 200K |
 Requesty | $15/1M | From$75/1M | $1.50/1M | 200K |
 FastRouter | $15/1M | $75/1M | $1.50/1M | 200K |
 Helicone | $15/1M | From$75/1M | $1.50/1M | — |
 Amazon Bedrock | $15/1M | $75/1M | $1.50/1M | — |
| OpenRouter | $15/1M | From$75/1M | $1.50/1M | 200K |
| Atlas Cloud | $15/1M | $75/1M | $1.50/1M | — |
 Prime Inference | $15/1M | $75/1M | — | — |
| AI/ML API | $15/1M | $75/1M | $1.59/1M | — |
 AIHubMix | $16.50/1M | $82.50/1M | — | 200K |
- ZenMux$75
- FastRouter$75
- Amazon Bedrock$75
- Atlas Cloud$75
- Prime Inference$75
- AI/ML API$75
- RequestyFrom$75
- HeliconeFrom$75
- OpenRouterFrom$75
- AIHubMix$82.50
Specs
- Type
- Text
- Maker
- Anthropic
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 200K≈ 300 pages of text
- Max output
- 32K
- Capabilities
- Prompt caching, Reasoning, Tool calling, Vision
- Released
- Aug 5, 2025
- License
- proprietary
- Open weights
- No, API only
Alternatives to Claude Opus 4.1
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Claude Opus 4.1this model | $75/1M | 200K | — | 10 |
| GPT-6 Astra | $25/1M | 1.05M | 1775 | 31 |
| GPT-4 | $60/1M | 8K | 1206 | 5 |
| GPT-5.6 | $30/1M | — | — | 1 |
| Kimi Thinking Preview | $30/1M | — | — | 1 |
| GPT-4 Turbo | $30/1M | 128K | 1272 | 6 |
| GPT-5.5 Cyber | $75/1M | — | — | 1 |
| GPT 5.6 Sol | $30/1M | — | — | 1 |
| GPT 5.6 Sol Pro | $40/1M | 1.05M | — | 1 |
More from Anthropic
Claude Opus 4.1 FAQ
The lowest price for Claude Opus 4.1 is $75 /1M, at ZenMux.
ZenMux, at $75 /1M. 10 providers serve Claude Opus 4.1; the table above lists every one with its price.
Claude Opus 4.1 reads up to 200K tokens per request and writes up to 32K.
No. Claude Opus 4.1 is only available through an API; Anthropic does not publish its weights.
10 API providers serve Claude Opus 4.1. Compare their prices above, or open a provider to see everything it offers.
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