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BenchLM

GPT-5.6 Sol vs Mistral Small 4

Updated September 24, 2026. Rank says GPT-5.6 Sol 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
OpenAI logo

OpenAI

78.49/100

Supported · Public rank #7

90% interval 75.6–81.4

Model B
Mistral logo

Mistral

34.29/100

Estimated · Public rank #134

90% interval 15.0–53.6

Shared results
0
GPT-5.6 Sol only
37
Mistral Small 4 only
0
Like-for-like categories
0 / 8
Supported: GPT-5.6 Sol · Estimated: Mistral Small 4How 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

    GPT-5.6 Sol

    GPT-5.6 Sol 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.

71.6GPT-5.6 Sol25.0Mistral Small 4

Directional only · BenchAlign v5.7

GPT-5.6 Sol 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.

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.

4 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 v5.7 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
GPT-5.6 Sol
69.6
Supported · #7/105
Mistral Small 4
17.4
Estimated · #92/105
Basis
BenchAlign v5.7 lane · 9 vs 0 public rows
Reading
Directional only

Coding

Directional only
GPT-5.6 Sol
71.6
Supported · #6/135
Mistral Small 4
25.0
Estimated · #99/135
Basis
BenchAlign v5.7 lane · 12 vs 0 public rows
Reading
Directional only

Knowledge

Directional only
GPT-5.6 Sol
78.8
Supported · #7/158
Mistral Small 4
34.7
Estimated · #110/158
Basis
BenchAlign v5.7 lane · 8 vs 0 public rows
Reading
Directional only

Instruction following

Directional only
GPT-5.6 Sol
87.7
#28/124
Mistral Small 4
55.7
#77/124
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Directional only

Reasoning

Not comparable
GPT-5.6 Sol
72.1
#8/19
Mistral Small 4
56.2
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
GPT-5.6 Sol
87.6
#5/50
Mistral Small 4
43.8
Unranked · 1 rankable row
Basis
Provisional lane · 1 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.6 Sol
Not ranked
Mistral Small 4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.6 Sol
96.8
Unranked · 3 rankable rows
Mistral Small 4
Not ranked
Basis
Provisional lane · 2 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 v5.7) 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.

Supported evidence per lane · 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

GPT-5.6 Sol
$0.014
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

GPT-5.6 Sol
$0.26
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

GPT-5.6 Sol
$0.36
Fits in one request
Mistral Small 4
$0.039
Fits in one request
Cached input priced at the published list-input rate

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.

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.

GPT-5.6 Sol

Mistral Small 4

256K

Cached-input rate

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

GPT-5.6 Sol

$0.4 per 1M cached input tokens

OpenAI pricing

Mistral Small 4

Not published

Provider availability

GPT-5.6 Sol

Generally Available · OpenAI Responses API

OpenAI model catalog

Mistral Small 4

Not sourced

Reasoning profile

GPT-5.6 Sol

Reasoning

Mistral Small 4

Non-Reasoning

Weight access

GPT-5.6 Sol

Proprietary

Mistral Small 4

Open Weight

License

GPT-5.6 Sol

Proprietary

Mistral Small 4

Open Weight

Release date

GPT-5.6 Sol

2026-07-09

Mistral Small 4

2026-02-20

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: $0.26 vs $0.0093. Cache-heavy agent loop: $0.36 vs $0.039.
Context tradeoff
GPT-5.6 Sol has the larger documented window (1.05M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-5.6 Sol 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, GPT-5.6 Sol or Mistral Small 4?

GPT-5.6 Sol scores higher for coding on the public lane, 71.6 to 25. 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, GPT-5.6 Sol or Mistral Small 4?

GPT-5.6 Sol scores higher for agentic tasks on the public lane, 69.6 to 17.4. 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, GPT-5.6 Sol or Mistral Small 4?

For the stated presets, chat costs $0.014 on GPT-5.6 Sol and $0.00045 on Mistral Small 4; repository review costs $0.26 and $0.0093; the cache-heavy agent loop costs $0.36 and $0.039. Mistral Small 4 has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, GPT-5.6 Sol or Mistral Small 4?

GPT-5.6 Sol has the larger documented context window: 1.05M, compared with 256K.

Self-host vs API cost

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

GPT-5.6 Sol
API / mo$18,000
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
Mistral Small 4
API / mo$563
Self-host / mo$2,278
Break-even266M/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 evidence37 rows

Agentic

  • Terminal-Bench 3.0

    GPT-5.6 Sol34.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.6 Sol91.9%
    Source
    Mistral Small 4—

    Not directly comparable

  • BrowseComp

    GPT-5.6 Sol92.2%
    Source
    Mistral Small 4—

    Not directly comparable

  • OSWorld 2.0

    GPT-5.6 Sol62.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • CyberGym

    GPT-5.6 Sol84.5%
    Source
    Mistral Small 4—

    Not directly comparable

  • ExploitGym

    GPT-5.6 Sol33.7%
    Source
    Mistral Small 4—

    Not directly comparable

  • Toolathlon

    GPT-5.6 Sol58%
    Source
    Mistral Small 4—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    GPT-5.6 Sol85.8%
    Source
    Mistral Small 4—

    Not directly comparable

  • ApprenticeBench

    GPT-5.6 Sol26%
    Source
    Mistral Small 4—

    Not directly comparable

Coding

  • Bug Hunt Bench

    GPT-5.6 Sol42 fixes
    Source
    Mistral Small 4—

    Not directly comparable

  • SWE-bench Pro

    GPT-5.6 Sol64.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.6 Sol91.9%
    Source
    Mistral Small 4—

    Not directly comparable

  • DeepSWE

    GPT-5.6 Sol72.7%
    Source
    Mistral Small 4—

    Not directly comparable

  • FrontierCode 1.1 Extended

    GPT-5.6 Sol60.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • FrontierSWE v2

    GPT-5.6 Sol32.2%
    Source
    Mistral Small 4—

    Not directly comparable

  • cursorBench32

    GPT-5.6 Sol67.2%
    Source
    Mistral Small 4—

    Not directly comparable

  • VulcanBench v3

    GPT-5.6 Sol87.0%
    Source
    Mistral Small 4—

    Not directly comparable

  • VulcanBench CII v1

    GPT-5.6 Sol86.5%
    Source
    Mistral Small 4—

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.6 Sol82.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.6 Sol96.2%
    Source
    Mistral Small 4—

    Not directly comparable

  • cursorBench40

    GPT-5.6 Sol41.7%
    Source
    Mistral Small 4—

    Not directly comparable

Reasoning

  • ARC-AGI-2

    GPT-5.6 Sol92.5%
    Source
    Mistral Small 4—

    Not directly comparable

  • ARC-AGI-3

    GPT-5.6 Sol7.8%
    Source
    Mistral Small 4—

    Not directly comparable

  • GeneBench-Pro

    GPT-5.6 Sol28.7%
    Source
    Mistral Small 4—

    Not directly comparable

Multimodal

  • MMMU-Pro

    GPT-5.6 Sol83%
    Source
    Mistral Small 4—

    Not directly comparable

  • MMMU-Pro w/ Python

    GPT-5.6 Sol84.6%
    Source
    Mistral Small 4—

    Not directly comparable

Knowledge

  • GPQA

    GPT-5.6 Sol94.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • GPQA-D

    GPT-5.6 Sol94.6%
    Source
    Mistral Small 4—

    Not directly comparable

  • HLE-Verified

    GPT-5.6 Sol54.5%
    Source
    Mistral Small 4—

    Not directly comparable

  • LABBench2

    GPT-5.6 Sol82.1%
    Source
    Mistral Small 4—

    Not directly comparable

  • HealthBench Professional

    GPT-5.6 Sol60.5%
    Source
    Mistral Small 4—

    Not directly comparable

  • HealthBench Hard

    GPT-5.6 Sol33.1%
    Source
    Mistral Small 4—

    Not directly comparable

  • GPQA Diamond (Vals)

    GPT-5.6 Sol95.2%
    Source
    Mistral Small 4—

    Not directly comparable

  • MMLU-Pro (Vals)

    GPT-5.6 Sol89.1%
    Source
    Mistral Small 4—

    Not directly comparable

Math

  • FrontierMath (legacy)

    GPT-5.6 Sol89%
    Source
    Mistral Small 4—

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    GPT-5.6 Sol89.000%
    Source
    Mistral Small 4—

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    GPT-5.6 Sol83.000%
    Source
    Mistral Small 4—

    Not directly comparable

37 public results · 0 shared

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Last updated September 24, 2026