Claude Fable 5.1 vs Mistral Large 4 (Public Preview)
Claude Fable 5.1 from Anthropic and Mistral Large 4 (Public Preview) from Mistral AI, side by side. Every figure comes from the model registry. No markup on model usage: you pay the provider's list price.
| Attribute |   Claude Fable 5.1 |  Mistral Large 4 (Public Preview) |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Model id | anthropic/claude-fable-5-1 | mistral/mistral-large-4 |
| Status | Available via Safeguard | Available via Safeguard |
| Input / 1M tokens | $10 | $1.36 |
| Output / 1M tokens | $50 | $4.18 |
| Price notes | Base price, full 1M context at standard rate. Cache hits $0.25/1M. Batch 50% off. US-only inference 1.1x. | List price, Mistral currently shows a sale price of $0.68 in / $2.09 out. Public preview model. |
| Context | 1M | 1M |
| Parameters | Not published | Not published |
| Max output | 128,000 tokens | Not published |
| Modality | Text and image | Text and image |
| Weights | Closed | Open |
| Zero data retention | Not offered | Not offered |
| Prompts go to | Anthropic (global routing by default) | Mistral AI (global endpoint by default) |
| Retention | Not used for model training without express permission. Claude Fable 5.1 is a Covered Model that requires 30-day data retention and is not available under ZDR unless Anthropic expressly authorizes it | Preview model: Mistral's commercial terms let it use Customer Data and Outputs from Labs or Preview Models for training, and opt-out or ZDR preferences do not apply to them |
| Region | Global by default, US-only inference via inference_geo at 1.1x pricing (Claude 4.6 and later) | Global by default, optional EU or US regional inference endpoints at 1.1x pricing |
| Price checked | 2026-10-08 | 2026-10-08 |
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