AI Model Release Tracker

Mistral Small 4

Released

Mistral Small 4 is an AI model released by Mistral on Monday, Mar 16 2026, 97 days after Devstral Small 2 (24B). Benchmark results (shown below) cover BullshitBench v2.

API pricing

InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$0.15
OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
$0.60
  • Reasoning or thinking is supported.
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Verified August 18, 2026Read from mistral.ai. Click the check to open the source.

Available from

Mistral——$0.15$0.60256K
Mistral—zdr$0.15$0.60256K
Mistraleu—$0.165$0.66256K
Mistralus—$0.165$0.66256K
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Checked October 14, 2026Third-party rates from openrouter.ai, not the lab’s own list price.

Benchmarks

BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.
6%
#92 of 97

Compare Mistral Small 4 with

Mistral Small 4

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Frequently asked questions

Mistral Small 4 was released by Mistral on Monday, Mar 16 2026.

All Mistral releases

33 tracked