Codestral

Paid

Open-weight generative AI model for code generation

4.5

New AI ToolsContact

Inputs: code, textOutputs: code

Type

Saas

Founded

2023

Company

Mistral AI

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About Codestral

Codestral is Mistral AI's first open-weight generative AI model specifically designed for code generation tasks. It helps developers write and interact with code through a shared instruction and completion API endpoint. Codestral is fluent in over 80 programming languages, including popular ones like Python, Java, C, C++, JavaScript, and Bash, as well as specialized languages like Swift and Fortran. It can complete coding functions, write tests, and fill in partial code using a fill-in-the-middle mechanism, saving developers time and reducing errors. Codestral is a 22B parameter model with a 32k context window, outperforming competitors on long-range code generation benchmarks like RepoBench. It is available under a Non-Production License for research and testing, with commercial licenses available on demand. Users can access Codestral via a dedicated endpoint (codestral.mistral.ai) for IDE integration or through Mistral's API (api.mistral.ai) for batch processing and application development.

Key Features

Fluent in over 80 programming languages

Fill-in-the-middle (FIM) mechanism for code completion

22B parameter model with 32k context window

Outperforms competitors on RepoBench long-range code generation

Dedicated endpoint for IDE integration (codestral.mistral.ai)

Available via Mistral API for batch and application development

Open-weight under Non-Production License for research and testing

Pros & Cons

Pros

Supports over 80 programming languages, covering both mainstream and niche languages
Large 32k context window for handling complex, long-range code dependencies
Offers a dedicated endpoint for seamless IDE integration
Free beta access for 8 weeks during initial rollout
Open-weight model allows for research and customization

Cons

Non-Production License restricts commercial use without separate agreement
22B model may have higher computational requirements compared to smaller models
Free beta endpoint is limited to 8 weeks, after which usage may require payment
No built-in support for some less common languages, though 80+ is extensive

Best For

Completing code functions in various programming languagesWriting unit tests for codeFilling in partial code snippetsBuilding advanced AI applications for software developersAssisting with code generation in IDEs and developer tools

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FAQ

What is Codestral?

Codestral is Mistral AI's first open-weight generative AI model designed specifically for code generation. It helps developers write and complete code, write tests, and fill in partial code using a shared instruction and completion API.

How many programming languages does Codestral support?

Codestral is trained on a diverse dataset of over 80 programming languages, including popular ones like Python, Java, C, C++, JavaScript, Bash, and more specialized languages like Swift and Fortran.

Is Codestral open-source?

Codestral is open-weight and available under the Mistral AI Non-Production License, which allows use for research and testing. Commercial licenses are available on demand by contacting the Mistral AI team.

How can I access Codestral?

You can access Codestral via a dedicated endpoint (codestral.mistral.ai) for IDE integration, or through the standard Mistral API (api.mistral.ai). The dedicated endpoint offers a free beta period of 8 weeks.

What is the performance of Codestral?

Codestral is a 22B parameter model with a 32k context window. It outperforms competing code models on benchmarks like RepoBench for long-range code completion and achieves strong results on HumanEval, MBPP, and other coding evaluations.