About Mistral Medium 3.5
Mistral Medium 3.5 is the closed-weights tier of Mistral's hosted lineup — unlike the company's Large and Small releases, its weights stay on Mistral's infrastructure, reached through an evergreen API alias rather than a pinned version. It carries the middle of the range: more capability than the Small line for harder assistant, coding and document work, without Large-class resource demands.
For many teams the draw is as much jurisdictional as technical: Mistral is the European frontier provider, and Medium is its mainstream enterprise tier, which matters where data residency and EU-based processing are procurement requirements.
Medium's rates position it against the mid-tiers of the American providers, and Mistral applies its standard cache discount — the cached figure here is derived from the provider's stated percentage rather than a separately published rate, which is worth knowing when reconciling against your invoice. The evergreen alias cuts both ways: you always get whichever Medium sits at the head of the alias, but behaviour can shift under you without a version bump, so pin-and-test practices matter more than usual. If your workload leans simple, the open-weight Small tier is dramatically cheaper; if it leans hard, Large remains modest by frontier standards.
Frequently asked questions
How much does the Mistral Medium 3.5 API cost?
Mistral Medium 3.5 costs $1.5 per million input tokens and $7.5 per million output tokens, with cached input at $0.15 per million (90% off). Note: Cached input derived from Mistral’s stated −90% discount.
How much does a typical chat message cost with Mistral Medium 3.5?
A short chat message (about 500 input and 250 output tokens) costs roughly $0.0026 with Mistral Medium 3.5. At 1,000 such requests a day, that is about $78.75 per month.
Is Mistral Medium 3.5 cheap compared to similar models?
Mistral Medium 3.5 has the #18 cheapest input rate of the 29 models we track. On a mixed workload (10K input / 2K output), it costs $0.030 per request and $0.033 for GPT-5.
What does Mistral Medium 3.5 cost per 1,000 tokens?
Per 1,000 tokens, Mistral Medium 3.5 costs $0.0015 for input and $0.0075 for output, or $0.00015 for cached input. Providers quote rates per million tokens ($1.5/M in, $7.5/M out here), so divide by a thousand for the per-1K figure older pricing pages used.
How large a prompt can Mistral Medium 3.5 take?
Mistral Medium 3.5 accepts up to null tokens of input context. At its input rate, filling the entire null-token window costs about $0 per request before any output.
Related
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All Mistral model costs: Mistral Large 3 · Mistral Small 4
Last updated 2026-09-03. Prices verified against Mistral's official pricing page; see the methodology.