Models / Mistral AI/ Mistral Small 3

Mistral Small 3

Mistral AI · released Jan 28, 2025 · mistralai/Mistral-Small-24B-Instruct-2501

Input: text. Output: text.InputOutput
Type
Open weightsApache License 2.0
Params
23.6B
Context
33K

about 25K words of context

Our take

Written Aug 3, 2026

Mistral Small 3 is a 23.6-billion-parameter text model released in early 2025 with a permissive Apache licence. Its standout measured skill is coding, and it is positioned as a budget-friendly workhorse for teams who need open weights with commercial freedom.

Who should pick it

Pick this for coding assistance where its Arena score is strongest, or for budget-conscious text generation with a permissive licence that allows commercial use and redistribution. Use it for self-hosted deployments where you need open weights without usage restrictions. Skip it if you need creative writing, image or video support, or guaranteed throughput data on every host.

The case for it

  • Strongest measured skill is coding, with an Arena Coding score 37 points above its overall text score.
  • Permissive Apache 2.0 licence allows commercial use, modification and redistribution.
  • Lowest-in-class pricing for open weights at this parameter scale across all tracked offers.
  • Coding lead over creative writing is substantial, with an 85-point gap between its highest and lowest reported Arena skills.

The case against it

  • Creative writing is a clear relative weakness, scoring 47 points below its overall text score and the lowest of all six reported Arena skills.
  • No measured throughput for two-thirds of offers; only one of three hosts lists a speed figure.
  • Dense architecture means all 23.6 billion parameters are active per token, with no disclosed efficiency figure to suggest otherwise.
00

How good is it?

IntelligencePuzzles, maths, exam questions

1 of 5

Arena Text (overall)131st of 143 · 1274.2

Arena Hard Prompts 129th of 143Arena Maths 125th of 139

CodingWriting and fixing code on its own

1 of 5

Arena Coding128th of 143 · 1312.4

Arena Coding is the only board that has scored it for this.

AgenticPlanning, calling tools, staying on task

not measured

Nobody we watch has scored Mistral Small 3 for this. We would take the rating from Arena Agent (IPS).

WritingWe do not rate this

Scored, not ratedThe placings are on the right.

Two boards come close and neither tests writing: Arena Creative Writing asks people which of two replies they prefer, and LiveBench Language tests whether a model understood a passage. So we show where Mistral Small 3 placed and give it no mark out of five.

Arena Creative Writing 131st of 143 · 1226.9
Also scored, on boards we give no mark for
Arena Instruction Following 132nd of 143

These tests check whether a model follows instructions — a precondition for all the work above, but not a measure of how well that work is done, which is why they get no rating.

Every published score for this model6 scoresEvery figure we hold, from 6 boards, with who ran it and a link to the source — including the boards no rating above is built on.
1312.4independentsource ↗
1284.7independentsource ↗
1261.5independentsource ↗
1274.2independentsource ↗
01

Can you run it yourself?

Fits in memory
weights load entirely on the card
Spills to system RAM
some weights offload; much slower
Too large
will not load even with offload
est
size is calculated; the verdict could change by 10%

Comfortable fit

A card many people ownFits in memory

GeForce RTX 4090 · 24 GB

Weights at Q4_K_M14.9 / 24 GBest
Spare memory5.9 GB spare
Usable context33K of 33K
Decode speed56 tok/sest

Room to spare. 5.9 GB spare means a 10% error in the size would not change the answer.

One step upFits in memory

GeForce RTX 5090 · 32 GB

Weights at Q4_K_M14.9 / 32 GBest
Spare memory13.9 GB spare
Usable context33K of 33K
Decode speed100 tok/sest

Room to spare. 13.9 GB spare means a 10% error in the size would not change the answer.

On a MacFits in memoryest

Apple M2 (10-core GPU) · 24 GB

Weights at Q4_K_M14.9 / 24 GBest
Spare memory1.1 GB spare
Usable context8K of 33K
Decode speed5 tok/sest

Borderline fit on an estimated size. It leaves 1.1 GB spare on a size we calculated rather than measured, and a 10% error either way would change the answer.

Your hardware
Checking your profile…

Memory use by level

Against a 24 GB card.

Q4_K_M
recommended
14.9 GBest
Fits in memory
Q5_K_M
17.5 GBest
Fits in memory
Q8_0
26.1 GBest
Spills to system RAM

All 3 sizes here are calculated, not measured. We hold no measured file for this model, so each size comes from the parameter count and every verdict above inherits that uncertainty.

Check against your own machine → · All 71 devices, with every size →

02

Or rent it from someone else

Cheapest published offer

Cheapest of 3 live listings. Picked at the widest standard context we hold, within one quantisation slice, so the numbers beside it are a price one host actually charges.

per 1M tokens
$0.050 in / $0.080 out
Context served
33K
Throughput
Not measured
Current provider offers with price, context and prompt-privacy answers
ProviderIn / out per 1M tokensContextThroughputTrains on promptsLogs promptsZero retention
OpenRouter$0.050 / $0.08033Knot measuredUnknownUnknownUnknown
DeepInfrafp8$0.050 / $0.08033Knot measuredUnknownUnknownUnknown
DeepInfrafp8$0.050 / $0.08033K53 tok/sNoNoConfirmed

Across the 3 listings we hold: 1 say they do not train on prompts, 0 say they do and 2 do not say. 1 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.

What each host's API supports

From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.

Supported
Not supported
Not published
host gave no parameter list
API features per host
ProviderTool callingJSON outputStrict schema
OpenRouter
DeepInfrafp8
DeepInfrafp8

Tool calling: 0 of 3 listings say yes, 2 say no, 1 publishes no parameter list. JSON output: 2 of 3 listings say yes, 1 publishes no parameter list. Strict schema: 2 of 3 listings say yes, 1 publishes no parameter list.

03

Models people weigh against Mistral Small 3

04

When we formed this view

Dates behind this page

Aug 2, 2026BenchmarkScored 1312.4 on Arena Codingleaderboard
Aug 2, 2026BenchmarkScored 1226.9 on Arena Creative Writingleaderboard
Aug 2, 2026BenchmarkScored 1284.7 on Arena Hard Promptsleaderboard
Aug 2, 2026BenchmarkScored 1255.4 on Arena Instruction Followingleaderboard
Aug 2, 2026BenchmarkScored 1261.5 on Arena Mathsleaderboard
Aug 2, 2026BenchmarkScored 1274.2 on Arena Text (overall)leaderboard
Jul 26, 2026ListedListed on LLMapfirst indexed by our pipeline
Jan 28, 2025AnnouncedMistral Small 3 announced by Mistral AI

Prices last checked 4d ago

What we do not know about this model yet

  • We hold no measured file for it, so all 3 sizes on this page are calculated from the parameter count.
  • 1 of 3 listings publish no parameter list, so what their API accepts is unknown to us.
  • Nothing we hold says whether an endpoint streams, so we do not show it either way.
  • 2 of 3 listings do not say whether they train on prompts.
  • We hold no cached-input rate for any of its listings.
05

Licence and identifiers

What the licence allowsApache License 2.0, what it allows commercially, and the identifiers you need to pull this model — its Hugging Face repo, our slug and a machine-readable card.

Licence

Apache License 2.0

permissiveCommercial use allowed

Fully permissive: commercial use, redistribution, and derivatives allowed. Requires attribution and a copy of the license. Includes an express patent grant.

Identifiers

Architecture
Dense
Modality record
text->text
Catalogue slug
mistralai-mistral-small-3

Machine-readable model card (omc.json) →

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