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Mistral Small 4 vs Muse Spark 1.2

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.

Mistral logo
Model A
Mistral Small 4

Mistral

42.85/100

Supported · Public rank #172

90% interval 23.762.0

Meta logo
Model B
Muse Spark 1.2

Meta

70.28/100

Estimated · Public rank #16

90% interval 58.976.0

Updated September 18, 2026. Rank says Muse Spark 1.2 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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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

    Muse Spark 1.2

    Muse Spark 1.2 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

  • Cache-heavy agent loop cost

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

    Mistral Small 4

    Mistral Small 4 has the lower estimated token cost for this stated workload. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

    Confidence: rate-fallback

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 Small 4 is scored on Estimated evidence for coding, so the reading is directional rather than like-for-like.

    Confidence: limited

  • Agentic work

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

    Not enough matched evidence

    Mistral Small 4 is scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.

    Confidence: limited

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.

40.9Mistral Small 460.0Muse Spark 1.2

Directional only · BenchAlign

Muse Spark 1.2 scores higher, but at least one score rests on Estimated evidence or a different benchmark set. Directional only, no winner.

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

What is actually comparable

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

Shared results
0
Mistral Small 4 only
0
Muse Spark 1.2 only
8
Like-for-like categories
0 / 8

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

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign 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.

Agentic

Directional only
Mistral Small 4
37.8
Estimated · #129/154
Muse Spark 1.2
61.0
Supported · #16/154
Basis
BenchAlign lane · 0 vs 2 public rows
Reading
Directional only

Coding

Directional only
Mistral Small 4
40.9
Estimated · #115/154
Muse Spark 1.2
60.0
Supported · #21/154
Basis
BenchAlign lane · 0 vs 5 public rows
Reading
Directional only

Knowledge

Directional only
Mistral Small 4
40.8
Estimated · #131/184
Muse Spark 1.2
70.7
Estimated · #10/184
Basis
BenchAlign lane · 0 vs 1 public rows
Reading
Directional only

Reasoning

Not comparable
Mistral Small 4
55.2
Unranked · 2 rankable rows
Muse Spark 1.2
75.3
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Mistral Small 4
Not ranked
Muse Spark 1.2
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Mistral Small 4
Not ranked
Muse Spark 1.2
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Mistral Small 4
43.8
Unranked · 1 rankable row
Muse Spark 1.2
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Mistral Small 4
55.7
#77/124
Muse Spark 1.2
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) differ from the provisional-lane categories. Unranked scores sit on the lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

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.

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 Small 4
$0.00045
Fits in one request
Muse Spark 1.2
$0.00338
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 Small 4
$0.0093
Fits in one request
Muse Spark 1.2
$0.07525
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 Small 4
$0.039
Fits in one request
Cached input priced at the published list-input rate
Muse Spark 1.2
$0.0975
Fits in one request

Mistral Small 4 has the lower modeled cost

Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

Specification differences

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

Cached-input rate

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

Mistral Small 4

Not published

Muse Spark 1.2

$0.15 per 1M cached input tokens

Meta: Muse Spark 1.2 model page

Documented inputs

Mistral Small 4

Not sourced

Muse Spark 1.2

Not sourced

Documented outputs

Mistral Small 4

Not sourced

Muse Spark 1.2

Not sourced

Provider availability

Mistral Small 4

Not sourced

Muse Spark 1.2

Not sourced

Reasoning profile

Mistral Small 4

Non-Reasoning

Muse Spark 1.2

Reasoning

Weight access

Mistral Small 4

Open Weight

Muse Spark 1.2

Proprietary

License

Mistral Small 4

Open Weight

Muse Spark 1.2

Proprietary

Release date

Mistral Small 4

2026-02-20

Muse Spark 1.2

2026-08-05

If you already use one of these models
Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
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: $0.0093 vs $0.07525. Cache-heavy agent loop: $0.039 vs $0.0975.
Context tradeoff
Muse Spark 1.2 has the larger documented window (1M).

Run the same representative tasks against both endpoints before changing production traffic.

Self-host vs API cost

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

Mistral Small 4
API / mo$563
Self-host / mo$2,278
Break-even266M/day
Muse Spark 1.2
API / mo$4,125
Self-host / moNot listed
Break-even
Proprietary model — self-hosting not applicable.
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 evidence8 rows

Agentic

  • Terminal-Bench 2.1

    Mistral Small 4
    Muse Spark 1.282.9%
    Source

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    Mistral Small 4
    Muse Spark 1.269.7%
    Source

    Not directly comparable

Coding

  • Terminal-Bench 2.1

    Mistral Small 4
    Muse Spark 1.282.9%
    Source

    Not directly comparable

  • DeepSWE

    Mistral Small 4
    Muse Spark 1.259.3%
    Source

    Not directly comparable

  • VulcanBench v3

    Mistral Small 4
    Muse Spark 1.287.0%
    Source

    Not directly comparable

  • FrontierSWE v2

    Mistral Small 4
    Muse Spark 1.212.0%
    Source

    Not directly comparable

  • SWE-bench (Vals)

    Mistral Small 4
    Muse Spark 1.286.6%
    Source

    Not directly comparable

Knowledge

  • MMLU-Pro (Vals)

    Mistral Small 4
    Muse Spark 1.288.3%
    Source

    Not directly comparable

Questions

Which is better, Mistral Small 4 or Muse Spark 1.2?

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 Small 4 or Muse Spark 1.2?

Muse Spark 1.2 scores higher for coding on the public lane, 60 to 40.9. Mistral Small 4 is scored on Estimated evidence for coding, so the reading is directional rather than like-for-like. BenchLM does not name a winner for coding from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which is better for agentic tasks, Mistral Small 4 or Muse Spark 1.2?

Muse Spark 1.2 scores higher for agentic tasks on the public lane, 61 to 37.8. Mistral Small 4 is scored on Estimated evidence for agentic tasks, so the reading is directional rather than like-for-like. BenchLM does not name a winner for agentic tasks from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which costs less, Mistral Small 4 or Muse Spark 1.2?

For the stated presets, chat costs $0.00045 on Mistral Small 4 and $0.00337 on Muse Spark 1.2; repository review costs $0.0093 and $0.07525; the cache-heavy agent loop costs $0.039 and $0.0975. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, Mistral Small 4 or Muse Spark 1.2?

Muse Spark 1.2 has the larger documented context window: 1M, compared with 256K.

Related comparisons

Last updated September 18, 2026

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