Claude Fable 5.1: API pricing, providers and specs
Claude Fable 5.1 is a text model by Anthropic. 29 providers serve it, from $40 to $55 /1M; the lowest price is at APIMart.
How Claude Fable 5.1 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $40 /1M, its lowest price is above 97% 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 #5 of the 64 comparable models scored there.
- 29 providers serve it; 96% of comparable models have fewer.
Claude Fable 5.1 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 |
|---|---|---|---|---|
| APIMart | $8/1M | $40/1M | — | — |
| $8/1M | $40/1M | $0.20/1M | — | |
| AnthropicOfficial | $10/1M | From$50/1M | $0.25/1M | 1M |
| ZenMux | $10/1M | $50/1M | $0.25/1M | 1M |
| $10/1M | $50/1M | $0.25/1M | — | |
Opper | $10/1M | $50/1M | $0.25/1M | — |
Requesty | $10/1M | From$50/1M | $0.25/1M | 1M |
| $10/1M | $50/1M | $0.25/1M | — | |
| $10/1M | $50/1M | $0.25/1M | — | |
| OpenCode | $10/1M | $50/1M | $0.25/1M | — |
| $10/1M | $50/1M | $0.25/1M | — | |
| Vercel AI Gateway | $10/1M | From$50/1M | $0.25/1M | 1M |
| $10/1M | $50/1M | $0.25/1M | 1M | |
Prime Inference | $10/1M | $50/1M | — | — |
NanoGPT | $10/1M | $50/1M | — | — |
| AI/ML API | $10/1M | $50/1M | $0.25/1M | — |
| OpenRouter | $10/1M | From$50/1M | $0.25/1M | 1M |
| DevPass (LLM Gateway) | $10/1M | From$50/1M | $0.25/1M | — |
| $10/1M | $50/1M | $0.25/1M | — | |
APIYI | $10/1M | $50/1M | — | — |
| $10/1M | $50/1M | — | — | |
CrazyRouter | $10/1M | $50/1M | — | — |
| $10/1M | From$50/1M | $0.25/1M | — | |
| $10/1M | From$50/1M | $0.25/1M | — | |
OrcaRouter | $10/1M | $50/1M | $0.25/1M | 1M |
FastRouter | $10/1M | $50/1M | $1/1M | 1M |
Jiekou.AI | $10/1M | $50/1M | $0.25/1M | — |
Impossibl | $10/1M | $50/1M | $0.25/1M | — |
| $11/1M | $55/1M | $0.275/1M | 1M |
- APIMart$40
- CometAPI$40
- ZenMux$50
- CrossModel$50
- Opper$50
- Venice AI$50
- Boundless$50
- OpenCode$50
- DigitalOcean$50
- NEAR AI Cloud$50
- Prime Inference$50
- NanoGPT$50
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
- Aug 31, 2026
- License
- proprietary
- Open weights
- No, API only
- Arena score
- 1743WebDev
- Monthly searches
- 34K
Alternatives to Claude Fable 5.1
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Claude Fable 5.1this model | $40/1M | 1M | 1743 | 29 |
| GPT-6 Astra | $25/1M | 1.05M | 1775 | 31 |
| $16/1M | 1.05M | — | 14 | |
| GPT-4 | $60/1M | 8K | 1206 | 5 |
| GPT-5.6 | $30/1M | — | — | 1 |
| Grok 3 | $15/1M | 131K | — | 6 |
| Grok-4 | $14.25/1M | 256K | 1411 | 6 |
| Kimi K3.1 Pro Highspeed (Moonshot AI) | $20/1M | 1.05M | — | 6 |
| $20/1M | 53K | — | 2 |
More from Anthropic
Claude Fable 5.1 FAQ
APIMart, at $40 /1M. 29 providers serve Claude Fable 5.1; the table above lists every one with its price.
Claude Fable 5.1 reads up to 1M tokens per request and writes up to 128K.
No. Claude Fable 5.1 is only available through an API; Anthropic does not publish its weights.
29 API providers serve Claude Fable 5.1. Compare their prices above, or open a provider to see everything it offers.
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