Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost.
Ways to buy 3
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
The lab's own API · cached $0.04 | $0.4 | $2 | $0.4 / $2List price | $0.04 | List price |
zdr · cached $0.04 | $0.4 | $2 | $0.4 / $2Same as list | $0.04 | Same as list |
eu · cached $0.044 | $0.44 | $2.2 | $0.44 / $2.2+10% vs list | $0.044 | +10% vs list |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $80.00 direct.
Kong AI Gateway$80.00+0%
OpenRouter$84.40+5.5%
Cloudflare AI GatewayNot offeredNot offered
Eden AINot offeredNot offered
HeliconeNot offeredNot offered
LiteLLMNot offeredNot offered
Neon AI GatewayNot offeredNot offered
RequestyNot offeredNot offered
Vercel AI GatewayNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
Mistral AI · 1M | $0.7 | $2.1 | $0.7 / $2.1 | $1.05 | 1M | on Mistral AI (zdr) | · | Mistral Large 4 is a frontier multimodal (text and image input) model from Mistral AI built for reasoning, coding, and agentic workloads. |
Mistral AI · 262K | $1.5 | $7.5 | $1.5 / $7.5 | $3 | 262K | Lab list price | · | Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. |
Mistral AI · 262K | $0.15 | $0.6 | $0.15 / $0.6 | $0.262 | 262K | on Mistral AI (zdr) | · | Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. |
Mistral AI · 262K | $0.4 | $2 | $0.4 / $2 | $0.8 | 262K | on Mistral AI (eu) | · | Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. |
Google · 1MCheapest: $0.75 on Google Gemini API (flex) | $0.75 | $3.75 | $0.75 / $3.75 | $1.5 | 1M | $0.75 on Google Gemini API (flex) | · | Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning. |
Google · 1MCheapest: $0.75 on Google Vertex AI (global-flex) | $0.75 | $3.75 | $0.75 / $3.75 | $1.5 | 1M | $0.75 on Google Vertex AI (global-flex) | · | Gemini 3.7 Flash is a multimodal model from Google for fast agentic workflows, coding, and complex multi-step reasoning. |
Z.ai · 1M | $0.179 | $1.4 | $0.179 / $1.4 | $0.484 | 1M | on Wafer (fp4) | · | GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. |
Z.ai · 1M | $0.37 | $1.25 | $0.37 / $1.25 | $0.59 | 1M | Lab list price | · | GLM-5.3-FlashX-Legal (GLM-Legal) is Z.ai's legal-domain variant of GLM-5.3-FlashX, a native multimodal model that accepts text, image, and video input and produces text. |
About Mistral Medium 3.1
Takes text, image, files in and returns text. First listed Aug 13, 2025. Up to 105K output tokens. Blended price $0.8 per 1M tokens at 3 input to 1 output. Model id mistral-medium-3-1.
Price history
List price since Aug 13, 2025, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does Mistral Medium 3.1 cost?
$0.4 per million input tokens and $2 per million output tokens, with cached input at $0.04.
What is the context window of Mistral Medium 3.1?
131K tokens, with up to 105K tokens of output.
Where is Mistral Medium 3.1 cheapest?
Of 3 routes tracked, Mistral AI is cheapest at $0.4 input and $2 output per million tokens.