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Specifications
Specifications and pricing as served by Composite
Model ID
mistralai/codestral-2508
Provider
cv11
Context window
256,000 tokens
Accepts
text, file
Returns
text
Input price
$0.375 per million tokens
Output price
$1.13 per million tokens
Prompt caching
Supported — cached input is billed at the provider's cache rate, on credits and plans alike
Moderated
No
Cost on a monthly plan
About 3.3 plan credits per typical call (8k in, 1k out)
Routing endpoints
2 (base plus 1 routing variant)
Use Mistral: Codestral 2508 in JanitorAI or SillyTavern
Make a Composite API key and type mistralai/codestral-2508 as the model name. JanitorAI takes the full URL https://composite.lucidity.sh/v1/chat/completions; SillyTavern, ChubAI, Agnai and RisuAI take https://composite.lucidity.sh/v1. It runs on credits, a plan, or your own provider key.
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
Routing variants
The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.
Route
Model ID
Provider
Price
cheapThink
mistralai/codestral-2508:cheapThink
cv11
$0.375 per million tokens input · $1.13 per million tokens output
Pricing
$0.375 per million tokens input · $1.13 per million tokens output
Credits pay the provider’s price plus 25%; cache hits cost less.
On a monthly plan, a typical call (8k tokens in, 1k out) uses about 3.3 plan credits, at the provider's own price.
Provider
cv11
Roleplay fit
Mistral models are compact and fast, a good fit when reply speed matters more than maximum context length.
Context behavior
With a 256,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.
From the provider
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)