Claude Fable 5.1 vs Mistral Small 4

Price, context window & benchmark comparison

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Claude Fable 5.1

Anthropic
$10.00 / $50.00
Input / Output · per 1M tokens
VS
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Mistral Small 4

Mistral AI
$0.15 / $0.60
Input / Output · per 1M tokens
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Verdict: Mistral Small 4 is 76.2× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix. Claude Fable 5.1 scores higher on the Artificial Analysis Intelligence Index (53.4 vs 11.3). Claude Fable 5.1 has the larger context window (1M vs 262K).
Claude Fable 5.1Mistral Small 4
Input price / 1M$10.00$0.15
Output price / 1M$50.00$0.60
Blended price (3:1)$20.00$0.26
Cached input / 1M$0.25$0.015
Context window1M262K
Max output128K210K
Intelligence index53.411.3
Coding index81.626.6
Providers43
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-012026-03-16
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FAQ

Which is cheaper, Claude Fable 5.1 or Mistral Small 4?

Mistral Small 4 is 76.2× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix.

Claude Fable 5.1 vs Mistral Small 4: which has a bigger context window?

Claude Fable 5.1: 1,000,000 tokens. Mistral Small 4: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Fable 5.1 ≈ $45,000, Mistral Small 4 ≈ $600.00.

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