Codestral 2508 API: toman pricing and code

mistralai/codestral-2508

Tool callingJSON outputFile input
Input · per 1M tokens
103,866 toman
Output · per 1M tokens
311,597 toman
One 1,000-word request ≈
540 toman

You are billed for the usage the request actually reported. Prices follow the market. Cached input: 10,387 toman per 1M tokens.Pricing and top-ups

Codestral 2508 example: JSON output against a schema

The example is picked from this model's own capabilities. Drop in your key and it runs as is.

from openai import OpenAI
import json

client = OpenAI(base_url="https://api.uttapen.ir/v1", api_key="sk-up-…")

schema = {
    "name": "ticket",
    "schema": {
        "type": "object",
        "properties": {
            "category": {"type": "string", "enum": ["fani", "mali", "forush"]},
            "priority": {"type": "integer", "minimum": 1, "maximum": 5},
            "summary": {"type": "string"},
        },
        "required": ["category", "priority", "summary"],
        "additionalProperties": False,
    },
    "strict": True,
}

resp = client.chat.completions.create(
    model="mistralai/codestral-2508",
    messages=[{"role": "user", "content": "Ticket: "For two days I cannot download my invoice and I was charged twice.""}],
    response_format={"type": "json_schema", "json_schema": schema},
)
print(json.loads(resp.choices[0].message.content))
import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.uttapen.ir/v1", apiKey: "sk-up-…" });

const resp = await client.chat.completions.create({
  model: "mistralai/codestral-2508",
  messages: [{ role: "user", content: "Ticket: "For two days I cannot download my invoice and I was charged twice."" }],
  response_format: {
    type: "json_schema",
    json_schema: {
      name: "ticket",
      strict: true,
      schema: {
        type: "object",
        properties: {
          category: { type: "string", enum: ["fani", "mali", "forush"] },
          priority: { type: "integer", minimum: 1, maximum: 5 },
          summary: { type: "string" },
        },
        required: ["category", "priority", "summary"],
        additionalProperties: false,
      },
    },
  },
});
console.log(JSON.parse(resp.choices[0].message.content));
curl https://api.uttapen.ir/v1/chat/completions \
  -H "Authorization: Bearer sk-up-…" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mistralai/codestral-2508",
    "messages": [{"role": "user", "content": "Classify the ticket and give it a priority from 1 to 5."}],
    "response_format": {"type": "json_object"}
  }'

What is Codestral 2508 good for?

Mistral publishes this model; we expose it under the id "mistralai/codestral-2508". Its context window is 256,000 tokens, roughly 192k English words in one request. A single response can run to 204,800 tokens. On price it sits in the "cheap" band — cheaper than 262 and dearer than 133 of the other paid models in the catalogue.

Capabilities available on this id: it takes files such as PDFs as input; it supports tool calling, so it can invoke your own functions with valid arguments; it returns schema-valid JSON through response_format, ready to hand to your code. All of it works through the standard parameters of the official OpenAI SDK — no custom client, no wrapper.

For a back-of-envelope figure: about 540 toman per 1,000-word exchange (103,866 in, 311,597 out, per 1M tokens). It supports cached input: repeated context is billed at 10,387 toman per 1M, which matters a lot if your system prompt is long. You are always charged for the usage the request actually reported, never for the estimate, and a failed request costs nothing.

The closest alternative with the same capabilities from a different provider is DeepSeek V3.1, and Codestral 2508 costs about the same, and its context window is larger. Both run on the same key and the same code, so trying the other one is a single string change.

To make the figure concrete: 100,000 toman of credit buys roughly 185 thousand-word requests on Codestral 2508, and every 1,000 toman is about 1,852 words of round trip. A job with one million input tokens and one million output tokens comes to 415,463 toman in total. Filling this model's 256,000-token window costs 26,590 toman on the input side alone, which is the real reason to keep conversation history short.

Its nearest relative in the catalogue is "mistralai/devstral-2512", and choosing between those two is where most people hesitate. On a thousand-word request this variant works out about 2× cheaper (540 against 1,080 toman). The context windows differ too: 256,000 against 262,144 tokens. Maximum answer length differs as well: 204,800 against 209,715 tokens. On parameters, this one takes prediction.

Mistral has 21 models in our catalogue; the cheapest is Mistral Nemo at 27 toman per thousand words and the dearest Mistral Medium 3.5 at 4,051. Among the less common parameters it accepts prediction, presence_penalty — all through the standard request body. It does not support include_reasoning, reasoning, which most models here do, so test before switching if your code relies on them. By context size the nearest option from another provider is Command A at 256,000 tokens.

What to use it for: high-volume work such as classification, tagging and bulk summarising, agents that reach out to APIs and databases, extracting data against a fixed schema, analysing a long document or codebase in one request.

Provider's own description

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)

Three real jobs, priced on this model

Each figure is derived from the prices above and moves when they do.

JobTokensCost
One chat turn with a medium history1,500 in + 400 out280 toman
Summarising a ten-page document4,000 in + 600 out602 toman
Classifying a thousand short rows120,000 in + 20,000 out18,696 toman

Frequently asked

How do I call Codestral 2508 from Iran?
Sign up with your mobile number, top the wallet up in toman, create an API key, then in the official OpenAI SDK point base_url at https://api.uttapen.ir/v1 and set model to "mistralai/codestral-2508". Nothing else in your code changes.
What does Codestral 2508 cost in toman?
103,866 toman per 1M input tokens and 311,597 toman per 1M output tokens; a 1,000-word request is around 540 toman. You pay for the usage that request actually reported, and a failed request costs nothing.
How much input does Codestral 2508 take?
Up to 256,000 tokens per request, roughly 192k words. A single answer can reach 204,800 tokens.
Does Codestral 2508 support streaming and tool calling?
Streaming (stream=true) works on every model here. This one supports tool calling in the standard OpenAI shape. Structured output through response_format works too.