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GPT-5.4 Mini vs Mistral Large

Updated October 21, 2026. 38 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace GPT-5.4 Mini Replace Mistral Large
GPT-5.4 MiniOpenAI
Coding
35.8
Overall
24.1
Output $/M
$4.50
38
Mistral LargeMistral AI
Coding
No data
Overall
5.8
Output $/M
$6.00
0
vs boards won of 38 shared

Decision reading

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; Mistral Large has none, so the two cannot be ranked on coding.

Compare them on price, context and the boards below.

Model AGPT-5.4 MiniOpenAI35.8/1005 independent benchmarks$0.70 per solved taskModel BMistral LargeMistral AINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
38
GPT-5.4 Mini only
50
Mistral Large only
6
Like-for-like categories
6 of 9

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

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
GPT-5.4 Mini 35.8 from 5 benchmarks, Mistral Large not benchmarked.
Widest category
Math, 47.1 points apart on average over 3 shared benchmarks.
Widest single gap
AIME: GPT-5.4 Mini 95.6% against Mistral Large 9.2%, 86.5 points apart on a 0 to 100 scale.
Output price
GPT-5.4 Mini $4.50 against Mistral Large $6.00 per million output tokens, 1.3x apart.
Context window
GPT-5.4 Mini takes 400K tokens, Mistral Large 128K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGPT-5.4 MiniBarsMistral LargeTies
Coding30
Intelligence20
Reasoning60
Math30
Knowledge60
General180
All shared boards380
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
LMArena WebDev1397Not measuredOnly GPT-5.4 Mini measured
AA Coding Index56.1Not measuredOnly GPT-5.4 Mini measured
LiveCodeBench (Vals AI)81.5%37.1%GPT-5.4 Mini
SWE-bench Verified (Vals AI)73.0%Not measuredOnly GPT-5.4 Mini measured
Terminal-Bench 4 (Vals AI)2.5%Not measuredOnly GPT-5.4 Mini measured
Vibe Code Bench (Vals AI)48.0%Not measuredOnly GPT-5.4 Mini measured
Code migration (Vals AI)12.9%Not measuredOnly GPT-5.4 Mini measured
ProgramBench (Vals AI)0.0%Not measuredOnly GPT-5.4 Mini measured
Terminal-Bench 2.1 (Vals AI)54.7%Not measuredOnly GPT-5.4 Mini measured
LiveCodeBench (Artificial Analysis run)Not measured17.8%Only Mistral Large measured
SciCode52.1%Not measuredOnly GPT-5.4 Mini measured
Terminal-Bench Hard (Artificial Analysis run)52.3%Not measuredOnly GPT-5.4 Mini measured
FrontierCode27.0%Not measuredOnly GPT-5.4 Mini measured
WeirdML60.3%Not measuredOnly GPT-5.4 Mini measured
ALE-Bench1188.6Not measuredOnly GPT-5.4 Mini measured
LMArena Text: coding14381275GPT-5.4 Mini
LMArena Text: software and IT14361274GPT-5.4 Mini
LMArena WebDev: React1386Not measuredOnly GPT-5.4 Mini measured
LMArena WebDev: HTML1419Not measuredOnly GPT-5.4 Mini measured
Neither model has a result on the other 19 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
AA Intelligence Index24.15.8GPT-5.4 Mini
Epoch Capabilities Index148.7122.1GPT-5.4 Mini
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Agentic work benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
AA Agentic Index17.9Not measuredOnly GPT-5.4 Mini measured
Finance Agent (Vals AI)45.4%Not measuredOnly GPT-5.4 Mini measured
Tax Agent Bench (Vals AI)8.8%Not measuredOnly GPT-5.4 Mini measured
Legal Research Bench (Vals AI)12.5%Not measuredOnly GPT-5.4 Mini measured
Excel Modeling Benchmark (Vals AI)45.4%Not measuredOnly GPT-5.4 Mini measured
τ²-Bench Telecom83.3%Not measuredOnly GPT-5.4 Mini measured
DeepResearch Bench36.3%Not measuredOnly GPT-5.4 Mini measured
Neither model has a result on the other 32 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index60
Reasoning benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
GPQA Diamond83.1%47.7%GPT-5.4 Mini
MMMU Pro (Vals AI)79.3%Not measuredOnly GPT-5.4 Mini measured
GPQA Diamond (Artificial Analysis run)87.5%35.1%GPT-5.4 Mini
Humanity's Last Exam (Artificial Analysis run)28.1%3.5%GPT-5.4 Mini
GPQA Diamond (Epoch AI run)86.9%Not measuredOnly GPT-5.4 Mini measured
ARC-AGI63.7%Not measuredOnly GPT-5.4 Mini measured
ARC-AGI-218.9%Not measuredOnly GPT-5.4 Mini measured
Chess puzzles23.0%Not measuredOnly GPT-5.4 Mini measured
Mystery game puzzles11.0%Not measuredOnly GPT-5.4 Mini measured
LMArena Text: hard prompts14241257GPT-5.4 Mini
LMArena Text: expert14351208GPT-5.4 Mini
LMArena Text: hard prompts in English14201268GPT-5.4 Mini
LMArena Vision: diagrams1266Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: homework1285Not measuredOnly GPT-5.4 Mini measured
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
AIME95.6%9.2%GPT-5.4 Mini
MATH 500 (Vals AI)Not measured74.4%Only Mistral Large measured
MGSM (Vals AI)Not measured87.2%Only Mistral Large measured
OTIS Mock AIME88.9%Not measuredOnly GPT-5.4 Mini measured
FrontierMath, tiers 1 to 351.2%Not measuredOnly GPT-5.4 Mini measured
FrontierMath, tier 49.8%Not measuredOnly GPT-5.4 Mini measured
ProofBench21.0%Not measuredOnly GPT-5.4 Mini measured
LMArena Text: math14181261GPT-5.4 Mini
LMArena Text: mathematical work14291257GPT-5.4 Mini
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index60
Knowledge benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
MMLU Pro84.5%69.7%GPT-5.4 Mini
CaseLaw (Vals AI)51.7%Not measuredOnly GPT-5.4 Mini measured
CorpFin (Vals AI)60.9%Not measuredOnly GPT-5.4 Mini measured
TaxEval (Vals AI)71.2%63.8%GPT-5.4 Mini
MortgageTax (Vals AI)63.5%Not measuredOnly GPT-5.4 Mini measured
MedQA (Vals AI)Not measured76.2%Only Mistral Large measured
MMLU Pro (Artificial Analysis run)Not measured51.5%Only Mistral Large measured
SimpleQA Verified29.4%Not measuredOnly GPT-5.4 Mini measured
MMLUNot measured68.8%Only Mistral Large measured
LMArena Text: science14171260GPT-5.4 Mini
LMArena Text: medicine and healthcare13951255GPT-5.4 Mini
LMArena Text: legal and government14141275GPT-5.4 Mini
LMArena Text: business and finance14181238GPT-5.4 Mini
Neither model has a result on the other 4 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
SAGE (Vals AI)50.8%Not measuredOnly GPT-5.4 Mini measured
Vals Multimodal Index54.2%Not measuredOnly GPT-5.4 Mini measured
IFBench73.3%Not measuredOnly GPT-5.4 Mini measured
Long context reasoning (AA-LCR)77.0%Not measuredOnly GPT-5.4 Mini measured
DTBench80.0%60.8%GPT-5.4 Mini
LMCA40.8%Not measuredOnly GPT-5.4 Mini measured
LMArena Text14121265GPT-5.4 Mini
LMArena Text: instruction following14051249GPT-5.4 Mini
LMArena Text: creative writing13701242GPT-5.4 Mini
LMArena Vision1245Not measuredOnly GPT-5.4 Mini measured
LMArena Text: English14121284GPT-5.4 Mini
LMArena Text: non-English14051235GPT-5.4 Mini
LMArena Text: Chinese14461239GPT-5.4 Mini
LMArena Text: German14081242GPT-5.4 Mini
LMArena Text: Japanese13751170GPT-5.4 Mini
LMArena Text: Korean13701202GPT-5.4 Mini
LMArena Text: French14411325GPT-5.4 Mini
LMArena Text: Spanish14051268GPT-5.4 Mini
LMArena Text: Russian14171252GPT-5.4 Mini
LMArena Text: Polish14151157GPT-5.4 Mini
LMArena Text: multi-turn14291260GPT-5.4 Mini
LMArena Text: longer queries14081261GPT-5.4 Mini
LMArena Text: writing and language13931261GPT-5.4 Mini
LMArena Text: entertainment and media13731230GPT-5.4 Mini
LMArena Vision: English1244Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: Chinese1286Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: reading text1253Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: humor1235Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: recognizing things1218Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: creative writing1222Not measuredOnly GPT-5.4 Mini measured
Neither model has a result on the other 16 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.4 Mini and Mistral Large
BenchmarkGPT-5.4 MiniMistral LargeLeader
Neither model has a result on 5 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

GPT-5.4 Mini$0.0030Fits in one request
Mistral Large$0.0050Fits in one request

GPT-5.4 Mini costs less

Repository review

50K input + 3K output tokens

GPT-5.4 Mini$0.051Fits in one request
Mistral Large$0.118Fits in one request

GPT-5.4 Mini costs less

Agent loop

200K input + 10K output tokens

GPT-5.4 Mini$0.195Fits in one request
Mistral Large$0.460Exceeds the context window

GPT-5.4 Mini 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 GPT-5.4 Mini and Mistral Large
SpecificationOpenAI GPT-5.4 MiniMistral Large
MakerOpenAIMistral AI
WeightsNo public weights listedNo public weights listed
ReleasedMarch 17, 2026February 26, 2024
Context window400K128K
Input $/Mtok$0.75$2.00
Output $/Mtok$4.50$6.00
Coding index35.8Not benchmarked
Independent measurements behind it50
Cost per solved task$0.70Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.4 Mini better than Mistral Large for coding?

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; Mistral Large has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.

Which is cheaper, GPT-5.4 Mini or Mistral Large?

GPT-5.4 Mini costs $0.75 per million input tokens and $4.50 per million output tokens; Mistral Large costs $2.00 and $6.00. Cost per solved task is known for GPT-5.4 Mini only.

Which has the bigger context window, GPT-5.4 Mini or Mistral Large?

GPT-5.4 Mini, with 400K tokens against 128K.

How many benchmarks is the GPT-5.4 Mini vs Mistral Large comparison based on?

38 benchmarks have a result for both models as of October 21, 2026. GPT-5.4 Mini's coding index rests on 5 independent benchmarks and Mistral Large's on 0. Where only one model has a result, the page says so instead of naming a winner.

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