Mistral: Devstral Medium

mistralai/devstral-medium

Released Jul 10, 2025131,072 context

$0.40/M input tokens$2/M output tokens

Devstral Medium is a high-performance code generation and agentic reasoning model developed jointly by Mistral AI and All Hands AI. Positioned as a step up from Devstral Small, it achieves 61.6% on SWE-Bench Verified, placing it ahead of Gemini 2.5 Pro and GPT-4.1 in code-related tasks, at a fraction of the cost. It is designed for generalization across prompt styles and tool use in code agents and frameworks.

Devstral Medium is available via API only (not open-weight), and supports enterprise deployment on private infrastructure, with optional fine-tuning capabilities.

Providers for Devstral Medium

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Performance for Devstral Medium

Compare different providers across OpenRouter

Effective Pricing for Devstral Medium

Actual cost per million tokens across providers over the past hour

Apps using Devstral Medium

Top public apps this month

Recent activity on Devstral Medium

Total usage per day on OpenRouter

Prompt

19.3M

Completion

341K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.

Uptime stats for Devstral Medium

Uptime stats for Devstral Medium across all providers

Sample code and API for Devstral Medium

OpenRouter normalizes requests and responses across providers for you.

OpenRouter provides an OpenAI-compatible completion API to 300+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.

Devstral Medium - API Pricing & Providers | OpenRouter