What is the difference between Claude Fable 5.1 and Mistral Devstral Small 1.1?

Claude Fable 5.1 is developed by Anthropic while Mistral Devstral Small 1.1 is developed by Mistral AI. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, Claude Fable 5.1 or Mistral Devstral Small 1.1?

It depends on your use case. Claude Fable 5.1 and Mistral Devstral Small 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does Claude Fable 5.1 cost compared to Mistral Devstral Small 1.1?

Claude Fable 5.1 costs $10/M input tokens and Mistral Devstral Small 1.1 costs $0.1/M input tokens. Mistral Devstral Small 1.1 is $9.90/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude Fable 5.1 and Mistral Devstral Small 1.1 on Rival?

This page shows a side-by-side comparison of Claude Fable 5.1 and Mistral Devstral Small 1.1 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Sep 2026

Claude Fable 5.1vsMistral Devstral Small 1.1

Mistral Devstral Small 1.1 is cheaper than Claude Fable 5.1 at $0.1/M vs $10/M input tokens.

Claude Fable 5.1 and Mistral Devstral Small 1.1 compared across 10 shared prompts
Spec	Claude Fable 5.1	Mistral Devstral Small 1.1
Input price	$10/M tokens	$0.1/M tokens
Output price	$50/M tokens	$0.3/M tokens
Context window	1.0M tokens	—
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Sep 2026	Jul 2025