mistral-small-2503
Mistral AI SAS/🇪🇺 EU/chat
Mistral Small 3.1 (2503) is a powerful 24-billion parameter multimodal AI model developed by Mistral AI that processes both text and image inputs. Designed for enterprise efficiency and fast-response agents, it is highly sought after for its exceptional long-context processing, function calling, and local deployment capabilities. MoreLess
Which id to call
mistral/mistral-small-2503This exact deployment on Mistral AI SAS, with no routing and no failover. Send it as the model field.
Input /1M
$0.11
Mistral AI SAS
Output /1M
$0.33
3.0x input
Context
33K
tokens
Added
Mar 2025
chat
Capabilities 2/8
Provider rates
What mistral-small-2503 costs
Provider prices per 1M tokens, updated October 2, 2026.moreless
These are the upstream provider rates. Pay as you go adds 5%, or 0% if you bring your own keys, and there is no per-request fee. Prompt caching and routing change what you pay against these rates, not the rates themselves.
Input /1M
$0.11
Output /1M
$0.33
Cache write /1M
-
Cache read /1M
-
What a workload costs
- 100K input + 10K output
- $0.0143
- 1M input + 100K output
- $0.14
- 10M input + 1M output
- $1.43
At the rates above. This endpoint does not offer prompt caching, so repeated context is billed as new input every time.
OpenAI compatible
Call it in three lines
Change the base url, use your Requesty key, set the model to mistral/mistral-small-2503. Existing OpenAI SDK code needs no other edit.
123456789101112131415from openai import OpenAI client = OpenAI( api_key="YOUR_REQUESTY_API_KEY", base_url="https://router.requesty.ai/v1", ) response = client.chat.completions.create( model="mistral/mistral-small-2503", messages=[ {"role": "user", "content": "Explain quantum computing in one paragraph."}, ], ) print(response.choices[0].message.content)
Reference
Specs and data terms
What the catalog reports for this deployment, and what the provider does with the traffic.
Released 2024-09-17
Benchmark scores
Benchmarks measure the model, not this endpoint, so they are the same wherever these weights are served.
Graduate-level physics, chemistry & biology questions designed to resist Googling.
Artificial Analysis Intelligence Index: a composite of multiple evaluations measuring overall model capability.
Scores from official model cards, Artificial Analysis and public leaderboards. They measure specific skills and do not capture every aspect of model quality, so test on your own workload.
Same provider
More from Mistral AI SAS
Newest first, on the same provider and the same key.
Reference
mistral-small-2503 questions
How much does mistral-small-2503 cost?
mistral-small-2503 is priced at $0.11 per million input tokens and $0.33 per million output tokens when accessed via Requesty. Those are the upstream provider rates: pay as you go adds 5% on top, or 0% if you bring your own provider keys.
What is the context window of mistral-small-2503?
mistral-small-2503 has a context window of 33K tokens. That's roughly 44 words of input you can fit in a single prompt.
How does mistral-small-2503 perform on benchmarks?
mistral-small-2503 scores 52.9% on MMLU Pro, 38.1% on GPQA Diamond, 14.1% on LiveCodeBench. See the full benchmark chart above for results across MMLU Pro, GPQA Diamond, SWE-Bench Verified, HumanEval, MATH, AIME, MMMU, and LiveBench.
What can mistral-small-2503 do?
mistral-small-2503 supports tool calling, structured outputs (JSON schema). You can call it through any OpenAI-compatible client by pointing base_url to Requesty.
How do I use mistral-small-2503 with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "mistral/mistral-small-2503". The Quickstart above shows Python, JavaScript and cURL snippets.
Can I run mistral-small-2503 through Requesty?
Yes. mistral-small-2503 runs through Requesty's OpenAI-compatible API, served from Mistral AI SAS. You do not host the model yourself: point base_url at Requesty, set the model to "mistral/mistral-small-2503", and requests are routed to the upstream provider with automatic failover. The same key gives you 600+ other models too.
Call mistral-small-2503 through one endpoint
One key for this endpoint and 600+ other models. No markup on provider prices, automatic failover, caching built in.