Mistral Small 3
Where it stands
Quality in independent tests against price, next to 135 other models. Up means more capable, left means cheaper.
About this model
Mistral Small 3 is an AI model from Mistral AI, made available through the API on January 30, 2025. It can read up to 32,768 tokens in one request, roughly 61 pages of text, and write up to 16,384 tokens in a single answer.
Through the API it costs $0.05 per million input tokens and $0.08 per million output tokens. Its pricing puts it among the more affordable models we track, which makes it a good fit for high-volume tasks.
Its weights are openly published (mistralai/Mistral-Small-24B-Instruct-2501), so it can also be downloaded and run on your own hardware.
Quality scores
Rankings →- GPQA DiamondVery hard multiple-choice questions in biology, physics and chemistry, written by PhD experts. Random guessing scores 25%.47.3%#101 of 116
- AIME mathCompetition-level math problems in the style of the American Invitational Mathematics Examination. Share solved.6.7%#100 of 112
Where to use it
Companies that serve this model through an API: 1. Prices per million tokens, cheapest first.
Availability and prices come from OpenRouter’s public API and are refreshed daily. Uptime is the share of successful requests over the last 24 hours. Some providers run a compressed version of open models (fp8, int4), which is cheaper but can be slightly less accurate.
Use it in your code
Call Mistral Small 3 through OpenRouter’s OpenAI-compatible API: create a key on openrouter.ai, then run one of these examples.
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "mistralai/mistral-small-24b-instruct-2501", "messages": [{"role": "user", "content": "Hello! What can you do?"}]}'import os
from openai import OpenAI
client = OpenAI(base_url="https://openrouter.ai/api/v1", api_key=os.environ["OPENROUTER_API_KEY"])
reply = client.chat.completions.create(
model="mistralai/mistral-small-24b-instruct-2501",
messages=[{"role": "user", "content": "Hello! What can you do?"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://openrouter.ai/api/v1", apiKey: process.env.OPENROUTER_API_KEY });
const reply = await client.chat.completions.create({
model: "mistralai/mistral-small-24b-instruct-2501",
messages: [{ role: "user", content: "Hello! What can you do?" }],
});
console.log(reply.choices[0].message.content);The same code works with every model on this site: only the model ID changes. Many labs also offer their own API and SDK.
What it costs in practice
- 1,000 chat replies$0.049
- Summarise a 100-page document$0.0026
- An app with 10,000 requests a day for a month$24.60
Similar-priced alternatives
| Model | Inputi | Outputi | Contexti | |
|---|---|---|---|---|
Solar Mini 4Upstage | $0.05 | $0.20 | 512K | Compare with ⇄ |
Schematron V2 SmallInference Net | $0.05 | $0.23 | 128K | Compare with ⇄ |
Nemotron 3 Nano 30B A3BNVIDIA | $0.05 | $0.20 | 256K | Compare with ⇄ |
GPT-5 NanoOpenAI | $0.05 | $0.40 | 400K | Compare with ⇄ |
Gemma 3 4BGoogle DeepMind | $0.05 | $0.10 | 128K | Compare with ⇄ |
Qwen3 30B A3B Instruct 2507Alibaba Qwen | $0.048 | $0.19 | 256K | Compare with ⇄ |
News about Mistral AI
See all →Frequently asked questions
- How much does Mistral Small 3 cost?
- Mistral Small 3 costs $0.05 per million input tokens and $0.08 per million output tokens through the API. For example, 1,000 chat replies of about 500 tokens in and 300 out cost around $0.049.
- What is the context window of Mistral Small 3?
- Mistral Small 3 can read up to 32,768 tokens in one request, about 61 pages of text. It can write up to 16,384 tokens in a single answer.
- Is Mistral Small 3 open source?
- Yes. Its weights are published (mistralai/Mistral-Small-24B-Instruct-2501), so you can download it and run it on your own hardware, or use it through one of 1 API providers.
- Who makes Mistral Small 3?
- Mistral Small 3 is made by Mistral AI. It became available through the API on January 30, 2025.
- How good is Mistral Small 3?
- Mistral Small 3 has an overall index of 127.1 in Epoch AI’s independent tests, ranking #120 of 136 models we track.
- Can Mistral Small 3 read images?
- No. Mistral Small 3 only accepts text as input.
- What are the alternatives to Mistral Small 3?
- Models with a similar price from other companies include Solar Mini 4, Schematron V2 Small and Nemotron 3 Nano 30B A3B. You can compare them side by side on this page.