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Mistral Medium 3 vs Mistral Small 4

Updated October 29, 2026. Rank says Mistral Small 4 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. Use the documented cost, context, and runtime rows instead. 0 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Mistral logo

Mistral

27.96/100

Estimated · Public rank #184

Conditional range 13.6–42.3

Model B
Mistral logo

Mistral

43.16/100

Estimated · Public rank #125

Conditional range 28.8–57.5

Shared results
0
Mistral Medium 3 only
1
Mistral Small 4 only
0
Like-for-like categories
0 / 8
Estimated: Mistral Medium 3 and Mistral Small 4. Conditional ranges do not establish rank confidence.How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Long documents

    Prompts that approach the documented context limit

    Mistral Small 4

    Mistral Small 4 has the larger documented context window.

    Confidence: documented
  • Chat turn cost

    1K fresh input + 500 output tokens

    Mistral Small 4

    Mistral Small 4 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
Show secondary and unsupported calls
  • Repository review cost

    50K fresh input + 3K output tokens

    Mistral Small 4

    Mistral Small 4 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    Mistral Medium 3 is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    Mistral Medium 3 is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. Mistral Medium 3 does not fit this workload in one request. Mistral Medium 3 has no published cached-input rate, so cached tokens use its listed input rate. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

    Confidence: rate-fallback

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

—Mistral Medium 325.9Mistral Small 4

Not comparable · BenchAlign v5.8

The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

2 categories rest on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

A shared-evidence shape is not available.

BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Knowledge

Directional only
Mistral Medium 3
28.9
Estimated · #155/179
Mistral Small 4
36.6
Estimated · #128/179
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Directional only

Instruction following

Directional only
Mistral Medium 3
45.5
#112/157
Mistral Small 4
57.1
#92/157
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Directional only

Agentic

Not comparable
Mistral Medium 3
Not ranked
Mistral Small 4
24.5
Estimated · #117/135
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Not comparable

Coding

Not comparable
Mistral Medium 3
Not ranked
Mistral Small 4
25.9
Estimated · #120/156
Basis
BenchAlign v5.8 lane · 1 vs 0 public rows
Reading
Not comparable

Reasoning

Not comparable
Mistral Medium 3
46.5
Unranked · 2 rankable rows
Mistral Small 4
59.1
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Mistral Medium 3
43.4
Unranked · 1 rankable row
Mistral Small 4
48.9
Unranked · 1 rankable row
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Mistral Medium 3
Not ranked
Mistral Small 4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Mistral Medium 3
Not ranked
Mistral Small 4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Mistral Medium 3
$0.0014
Fits in one request
Mistral Small 4
$0.00045
Fits in one request

Mistral Small 4 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Mistral Medium 3
$0.026
Fits in one request
Mistral Small 4
$0.0093
Fits in one request

Mistral Small 4 has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Mistral Medium 3
$0.108
Does not fit in one request
Cached input priced at the published list-input rate
Mistral Small 4
$0.039
Fits in one request
Cached input priced at the published list-input rate

Mistral Medium 3 does not fit this workload in one request. Mistral Medium 3 has no published cached-input rate, so cached tokens use its listed input rate. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

Mistral Medium 3

128K

Mistral Small 4

256K

API model ID

Mistral Medium 3

Not sourced

Mistral Small 4

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Mistral Medium 3

Not published

Mistral Small 4

Not published

Documented inputs

Mistral Medium 3

Not sourced

Mistral Small 4

Not sourced

Documented outputs

Mistral Medium 3

Not sourced

Mistral Small 4

Not sourced

Provider availability

Mistral Medium 3

Not sourced

Mistral Small 4

Not sourced

Reasoning profile

Mistral Medium 3

Non-Reasoning

Mistral Small 4

Non-Reasoning

Weight access

Mistral Medium 3

Proprietary

Mistral Small 4

Open Weight

License

Mistral Medium 3

Proprietary

Mistral Small 4

Open Weight

Release date

Mistral Medium 3

2025-05-07

Mistral Small 4

2026-03-16

If you already use one of these models

Deployment change
Both entries list Mistral as the provider. Confirm endpoint, model ID, limits, and feature support before switching.
Quality signal
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict.
Workload cost
Repository review: $0.026 vs $0.0093. Cache-heavy agent loop: $0.108 vs $0.039.
Context tradeoff
Mistral Small 4 has the larger documented window (256K).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Mistral Medium 3 or Mistral Small 4?

The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, Mistral Medium 3 or Mistral Small 4?

Mistral Medium 3 is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, Mistral Medium 3 or Mistral Small 4?

Mistral Medium 3 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, Mistral Medium 3 or Mistral Small 4?

For the stated presets, chat costs $0.0014 on Mistral Medium 3 and $0.00045 on Mistral Small 4; repository review costs $0.026 and $0.0093; the cache-heavy agent loop costs $0.108 and $0.039. Mistral Medium 3 does not fit this workload in one request. Mistral Medium 3 has no published cached-input rate, so cached tokens use its listed input rate. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, Mistral Medium 3 or Mistral Small 4?

Mistral Small 4 has the larger documented context window: 256K, compared with 128K.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

Mistral Medium 3
API / mo$1,800
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
Mistral Small 4
API / mo$563
Self-host / mo$3,495
Break-even409M/day
Model the full break-even

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence1 rows

Coding

  • LiveCodeBench v6

    Mistral Medium 330.3%
    Source
    Mistral Small 4—

    Not directly comparable

1 public result · 0 shared

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Last updated October 29, 2026