Claude Opus 5.5 vs Mistral Medium 3

Price, context window & benchmark comparison

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Claude Opus 5.5

Anthropic
$4.00 / $20.00
Input / Output · per 1M tokens
VS
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Mistral Medium 3

Mistral AI
$0.40 / $2.00
Input / Output · per 1M tokens
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Verdict: Mistral Medium 3 is 10.0× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix. Claude Opus 5.5 has the larger context window (1M vs 131K).
Claude Opus 5.5Mistral Medium 3
Input price / 1M$4.00$0.40
Output price / 1M$20.00$2.00
Blended price (3:1)$8.00$0.80
Cached input / 1M$0.20$0.04
Context window1M131K
Max output128K105K
Intelligence index57.6
Coding index
Providers11
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesNo
Tool callingYesYes
Released2026-09-222025-05-07
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FAQ

Which is cheaper, Claude Opus 5.5 or Mistral Medium 3?

Mistral Medium 3 is 10.0× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.

Claude Opus 5.5 vs Mistral Medium 3: which has a bigger context window?

Claude Opus 5.5: 1,000,000 tokens. Mistral Medium 3: 131,072 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Opus 5.5 ≈ $18,000, Mistral Medium 3 ≈ $1,800.

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