Claude Fable 5.1 vs Magistral Medium
Claude Fable 5.1 leads the LLM Stats Score 55.7 to 13.1.
Anthropic · Mistral AI · Updated for 2026
Which is better?
Claude Fable 5.1 leads the overall LLM Stats Score 55.7 to 13.1, ranking #2 overall.
In the 1 individual benchmarks reported for both models, Claude Fable 5.1 wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Fable 5.1
- overall performance matters — it scores 55.7 and ranks #2 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Sep 2026
Choose Magistral Medium
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
7 reported for Claude Fable 5.1 · 6 for Magistral Medium
Claude Fable 5.1 outperforms in 1 benchmarks (Humanity's Last Exam), while Magistral Medium is better at 0 benchmarks.
Claude Fable 5.1 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Claude Fable 5.1 specifies input context (1,000,000 tokens). Only Claude Fable 5.1 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Claude Fable 5.1 and Magistral Medium support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Fable 5.1
Magistral Medium
License
Usage and distribution terms
Claude Fable 5.1 is licensed under a proprietary license, while Magistral Medium uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Claude Fable 5.1 was released on 2026-09-01, while Magistral Medium was released on 2025-06-10.
Claude Fable 5.1 is 15 months newer than Magistral Medium.
Sep 1, 2026
2 weeks ago
1.2yr newerJun 10, 2025
1.3 years ago
Knowledge Cutoff
When training data ends
Magistral Medium has a documented knowledge cutoff of 2025-06-01, while Claude Fable 5.1's cutoff date is not specified.
We can confirm Magistral Medium's training data extends to 2025-06-01, but cannot make a direct comparison without Claude Fable 5.1's cutoff date.
—
Jun 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Fable 5.1 and Magistral Medium side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Fable 5.1 vs Magistral Medium.