Mistral · Language model

Codestral 2508

mistralai/codestral-2508

Language

Released Aug 1, 2025

Mistral's cutting-edge language model for coding released end of July 2025. Codestral specializes in low-latency, high-frequency tasks such as fill-in-the-middle (FIM), code correction and test generation.

[Blog Post](https://mistral.ai/news/codestral-25-08)

Specifications

Context window: 256,000 tokens
Max output: 204,800 tokens
Input: text, file
Output: text
Tokenizer: Mistral
Knowledge cutoff: 2025-03-31

Supported parameters

Accepted by the model and forwarded as-is by the gateway.

frequency_penalty
max_tokens
prediction
presence_penalty
response_format
seed
stop
structured_outputs
temperature
tool_choice
tools
top_p

Use it

POST /api/v1/chat/completions · MCP chat · full reference

curl https://omnirail.org/api/v1/chat/completions \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"mistralai/codestral-2508","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'