Grok 4.20 0309 Reasoning vs Mistral Large 4

Price, context window & benchmark comparison

xAI

Grok 4.20 0309 Reasoning

xAI
$1.25 / $2.50
Input / Output · per 1M tokens
VS
Mistral AI

Mistral Large 4

Mistral AI
$0.70 / $2.10
Input / Output · per 1M tokens
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xAI
Mistral AI
Verdict: Mistral Large 4 is 33% cheaper than Grok 4.20 0309 Reasoning on a typical 3:1 input/output mix. Mistral Large 4 has the larger context window (1M vs 1M).
Grok 4.20 0309 ReasoningMistral Large 4
Input price / 1M$1.25$0.70
Output price / 1M$2.50$2.10
Blended price (3:1)$1.56$1.05
Cached input / 1M$0.20$0.07
Context window1M1M
Max output30K262K
Intelligence index—26
Coding index——
Providers—3
Best provider uptime (30m)—100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-10-162026-10-06
Retirement——

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FAQ

Which is cheaper, Grok 4.20 0309 Reasoning or Mistral Large 4?

Mistral Large 4 is 33% cheaper than Grok 4.20 0309 Reasoning on a typical 3:1 input/output mix.

Grok 4.20 0309 Reasoning vs Mistral Large 4: which has a bigger context window?

Grok 4.20 0309 Reasoning: 1,000,000 tokens. Mistral Large 4: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Grok 4.20 0309 Reasoning ≈ $3,750, Mistral Large 4 ≈ $2,450.

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