Head to head · cost

Mistral vs OpenAI: which is cheaper?

On the cheapest model from each, Mistral wins on raw output price: Mistral Small 4 at $0.3 per 1M output tokens versus $4.5. But "cheaper per token" rarely means "cheaper for your app". The model that needs fewer retries, shorter prompts, or less reasoning can cost less in practice even at a higher sticker rate.

Last verified June 14, 2026
ModelIn / 1MOut / 1M
Mistral Medium 3.5$1.5$7.5
Mistral Large 3$0.5$1.5
Mistral Small 4$0.1$0.3
Magistral Medium$2$5
Codestral$0.3$0.9
ModelIn / 1MOut / 1M
GPT-5.5$5$30
GPT-5.4$2.5$15
GPT-5.4 mini$0.75$4.5
GPT-Realtime-2 audio$32$64
GPT-Realtime-2 text$4$24
GPT-Realtime-2 image$5
GPT-Image-2 image$8$30
GPT-Image-2 text$5

Mistral or OpenAI: which is cheaper for YOUR app?

Per-token rates can't answer that. The winner depends on how your code uses each model. PrePrice scans your project and computes the real per-user cost either way, plus what to charge so you clear margin.

Find your real cost — free

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