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Mistral Small 3.2 24B vs o3 Pro

Mistral Small 3.2 24B costs 266.7x less per output token than o3 Pro ($0.30 vs $80.00 per million). Updated October 21, 2026; no benchmark has tested both models yet.

Replace Mistral Small 3.2 24B Replace o3 Pro
Mistral Small 3.2 24BMistral AI
Coding
No data
Overall
No data
Output $/M
$0.30
o3 ProOpenAI
Coding
No data
Overall
21.9
Output $/M
$80.00
vs $0.30 vs $80.00 per 1M output tokens. Mistral Small 3.2 24B is 266.7x cheaper.

Mistral Small 3.2 24B or o3 Pro: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Mistral Small 3.2 24B for output tokens 266.7x cheaper ($0.30 vs $80.00 per million) and a larger context window (256K against 200K tokens).

Model AMistral Small 3.2 24BMistral AINot benchmarkedNo coding benchmarkNo cost per solved taskModel Bo3 ProOpenAINot benchmarkedNo coding benchmarkNo cost per solved task

No benchmark has tested both yet. Mistral Small 3.2 24B has results on Design Arena: websites, Design Arena: UI components and Design Arena: game dev; o3 Pro on Aider polyglot, WeirdML and AA Intelligence Index. Compare them on price and context instead.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Mistral Small 3.2 24B not benchmarked, o3 Pro not benchmarked.
Widest category
None yet: no category has been tested on both models.
Widest single gap
None yet: no benchmark has tested both models.
Output price
Mistral Small 3.2 24B $0.30 against o3 Pro $80.00 per million output tokens, 266.7x apart.
Context window
Mistral Small 3.2 24B takes 256K tokens, o3 Pro 200K.

Benchmark by benchmark

Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.

CodingDirectional onlySix of these boards feed the Vibe Coding Index2 boards measured
Coding benchmarks for Mistral Small 3.2 24B and o3 Pro
BenchmarkMistral Small 3.2 24Bo3 ProLeader
Aider polyglotNot measured84.9%Only o3 Pro measured
WeirdMLNot measured58.2%Only o3 Pro measured
Neither model has a result on the other 36 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Intelligence benchmarks for Mistral Small 3.2 24B and o3 Pro
BenchmarkMistral Small 3.2 24Bo3 ProLeader
AA Intelligence IndexNot measured21.9Only o3 Pro measured
Epoch Capabilities IndexNot measured147.3Only o3 Pro measured
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index3 boards measured
Reasoning benchmarks for Mistral Small 3.2 24B and o3 Pro
BenchmarkMistral Small 3.2 24Bo3 ProLeader
GPQA Diamond (Artificial Analysis run)Not measured84.5%Only o3 Pro measured
ARC-AGINot measured59.3%Only o3 Pro measured
ARC-AGI-2Not measured4.9%Only o3 Pro measured
Neither model has a result on the other 18 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
Web design benchmarks for Mistral Small 3.2 24B and o3 Pro
BenchmarkMistral Small 3.2 24Bo3 ProLeader
Design Arena: websites896Not measuredOnly Mistral Small 3.2 24B measured
Design Arena: UI components907Not measuredOnly Mistral Small 3.2 24B measured
Design Arena: game dev888Not measuredOnly Mistral Small 3.2 24B measured
Design Arena: data viz929Not measuredOnly Mistral Small 3.2 24B measured
Design Arena: all code categories907Not measuredOnly Mistral Small 3.2 24B measured
Neither model has a result on the other 4 boards here
GeneralDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
General benchmarks for Mistral Small 3.2 24B and o3 Pro
BenchmarkMistral Small 3.2 24Bo3 ProLeader
DTBenchNot measured86.9%Only o3 Pro measured
LMCANot measured38.5%Only o3 Pro measured
Fiction.LiveBenchNot measured97.2%Only o3 Pro measured
Creative writing (Lech Mazur)Not measured84.4%Only o3 Pro measured
Neither model has a result on the other 42 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Mistral Small 3.2 24B$0.0003Fits in one request
o3 Pro$0.060Fits in one request

Mistral Small 3.2 24B costs less

Repository review

50K input + 3K output tokens

Mistral Small 3.2 24B$0.0059Fits in one request
o3 Pro$1.24Fits in one request

Mistral Small 3.2 24B costs less

Agent loop

200K input + 10K output tokens

Mistral Small 3.2 24B$0.023Fits in one request
o3 Pro$4.80Exceeds the context window

Mistral Small 3.2 24B costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Mistral Small 3.2 24B and o3 Pro
SpecificationMistral Small 3.2 24BOpenAI o3 Pro
MakerMistral AIOpenAI
WeightsOpen weightsNo public weights listed
ReleasedJune 20, 2025June 10, 2025
Context window256K200K
Input $/Mtok$0.10$20.00
Output $/Mtok$0.30$80.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Mistral Small 3.2 24B better than o3 Pro for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Mistral Small 3.2 24B for output tokens 266.7x cheaper ($0.30 vs $80.00 per million) and a larger context window (256K against 200K tokens).

Which is cheaper, Mistral Small 3.2 24B or o3 Pro?

Mistral Small 3.2 24B costs $0.10 per million input tokens and $0.30 per million output tokens; o3 Pro costs $20.00 and $80.00. Cost per solved task is known for neither of them.

Which has the bigger context window, Mistral Small 3.2 24B or o3 Pro?

Mistral Small 3.2 24B, with 256K tokens against 200K.

Has any benchmark tested both Mistral Small 3.2 24B and o3 Pro?

No benchmark has tested both yet. Mistral Small 3.2 24B has results on Design Arena: websites, Design Arena: UI components and Design Arena: game dev; o3 Pro on Aider polyglot, WeirdML and AA Intelligence Index. Compare them on price and context instead. Data as of October 21, 2026.

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