Devstral Medium API

Access Devstral Medium from Mistral AI using Puter.js AI API.

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Model Card

Devstral Medium is a high-performance agentic coding model achieving 61.6% on SWE-Bench Verified. It excels at complex software engineering tasks across entire codebases, surpassing GPT-4.1 and Gemini 2.5 Pro in code-related tasks at a fraction of the cost.

Context Window N/A

tokens

Max Output 131K

tokens

Input Cost $0.4

per million tokens

Output Cost $2

per million tokens

Input text

modalities

Tool Use Yes

 

Knowledge Cutoff May 2025

 

Release Date Jul 10, 2025

 

API Usage Example

Add Devstral Medium to your app with just a few lines of code.
No API keys, no backend, no configuration required.

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.chat("Explain quantum computing in simple terms", {
    model: "mistralai/devstral-medium-2507"
}).then(response => {
    document.body.innerHTML = response.message.content;
});

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms", {
            model: "mistralai/devstral-medium-2507"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

View full documentation →

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Frequently Asked Questions

What is this Devstral Medium API about?

The Devstral Medium API gives you access to Mistral AI's chat model through Puter.js. With just a few lines of JavaScript, you can integrate Devstral Medium into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Devstral Medium?

Devstral Medium was created by Mistral AI and released on Jul 10, 2025.

What is the max output length of Devstral Medium?

Devstral Medium can generate up to 131K tokens in a single response.

What is the knowledge cutoff of Devstral Medium?

Devstral Medium has a knowledge cutoff date of May 2025. This means the model was trained on data available up to that date.

What types of input can Devstral Medium process?

Devstral Medium accepts the following input types: text. It produces: text.

Does Devstral Medium support tool use (function calling)?

Yes, Devstral Medium supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.

How much does it cost?
The Devstral Medium API is available through the User-Pays Model. As a developer, you can add the Devstral Medium API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$0.4
Output$2
How do I access the Devstral Medium API?

You can access the Devstral Medium API with just a few lines of JavaScript — no API keys, no backend, and no configuration required. Include the Puter.js library in your project and start making calls right away. For more details, check out our documentation.

Does the Devstral Medium API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Devstral Medium API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add Devstral Medium to your app without worrying about API keys or setup.

Read the Docs View Tutorials