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Mistral Large 4 vs Mistral Medium 3.5

Mistral Large 4 leads Mistral Medium 3.5 on coding, 56.4 to 25.5 on the Vibe Coding Index, and Mistral Large 4 costs 1.8x less per output token ($4.18 vs $7.50 per million). Updated October 22, 2026; 57 benchmarks have a result for both.

Replace Mistral Large 4 Replace Mistral Medium 3.5
Mistral Large 4Mistral AI
Coding
56.4
Overall
54.6
Output $/M
$4.18
52
Mistral Medium 3.5Mistral AI
Coding
25.5
Overall
37.3
Output $/M
$7.50
5
vs boards won of 57 shared

Mistral Large 4 or Mistral Medium 3.5: which to pick

Pick Mistral Large 4 for coding: it scores 56.4 on the Vibe Coding Index against 25.5 for Mistral Medium 3.5.

Pick Mistral Medium 3.5 for work measured by LMArena Text: hard prompts in English or LMArena Text: legal and government, where it leads.

Model AMistral Large 4Mistral AI56.4/1005 independent benchmarksNo cost per solved taskModel BMistral Medium 3.5Mistral AI25.5/1003 independent benchmarks$6.02 per solved task
Shared results
57
Mistral Large 4 only
24
Mistral Medium 3.5 only
24
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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 Large 4 56.4 from 5 benchmarks, Mistral Medium 3.5 25.5 from 3 benchmarks.
Widest category
Agentic work, 29.0 points apart on average over 4 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Mistral Large 4 78.4% against Mistral Medium 3.5 2.9%, 75.5 points apart on a 0 to 100 scale.
Output price
Mistral Large 4 $4.18 against Mistral Medium 3.5 $7.50 per million output tokens, 1.8x apart.
Context window
Mistral Large 4 takes 1.05M tokens, Mistral Medium 3.5 262K.

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
CategoryMistral Large 4BarsMistral Medium 3.5Ties
Coding90
Intelligence20
Agentic work40
Reasoning41
Math30
Knowledge41
Web design80
General183
All shared boards525
CodingLike-for-likeSix of these boards feed the Vibe Coding Index90
Coding benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
LiveBench coding60.0%Not measuredOnly Mistral Large 4 measured
LMArena WebDev15431264Mistral Large 4
AA Coding IndexNot measured46.9Only Mistral Medium 3.5 measured
SWE-bench Verified (Vals AI)Not measured66.4%Only Mistral Medium 3.5 measured
Terminal-Bench 4 (Vals AI)27.8%Not measuredOnly Mistral Large 4 measured
Vibe Code Bench (Vals AI)78.4%2.9%Mistral Large 4
Code migration (Vals AI)30.6%5.1%Mistral Large 4
IOI (Vals AI)45.3%Not measuredOnly Mistral Large 4 measured
Terminal-Bench 2.1 (Vals AI)Not measured39.0%Only Mistral Medium 3.5 measured
SWE-bench Multimodal (Vals AI)33.1%Not measuredOnly Mistral Large 4 measured
Vibe Code Bench 1-100 (Vals AI)14.3%Not measuredOnly Mistral Large 4 measured
SciCode54.2%40.2%Mistral Large 4
Terminal-Bench Hard (Artificial Analysis run)Not measured33.3%Only Mistral Medium 3.5 measured
FrontierCode39.4%Not measuredOnly Mistral Large 4 measured
ALE-Bench1213.2764.0Mistral Large 4
LMArena Text: coding14781460Mistral Large 4
LMArena Text: software and IT14671458Mistral Large 4
LMArena WebDev: React15591254Mistral Large 4
LMArena WebDev: HTML14871308Mistral Large 4
Neither model has a result on the other 20 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
AA Intelligence Index38.414.2Mistral Large 4
Epoch Capabilities Index150.0141.4Mistral Large 4
Agentic workLike-for-likePublic boards, shown as published, kept out of the index40
Agentic work benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
AA Agentic IndexNot measured7.0Only Mistral Medium 3.5 measured
LiveBench research28.1%Not measuredOnly Mistral Large 4 measured
LiveBench browser8.0%Not measuredOnly Mistral Large 4 measured
LiveBench long agentic11.8%Not measuredOnly Mistral Large 4 measured
Finance Agent (Vals AI)54.7%32.1%Mistral Large 4
Tax Agent Bench (Vals AI)30.4%4.5%Mistral Large 4
Legal Research Bench (Vals AI)31.7%9.1%Mistral Large 4
Harvey's Legal Agent Benchmark (Vals AI)17.5%Not measuredOnly Mistral Large 4 measured
Excel Modeling Benchmark (Vals AI)56.2%11.2%Mistral Large 4
BioMysteryBench (Vals AI)67.0%Not measuredOnly Mistral Large 4 measured
τ²-Bench TelecomNot measured94.2%Only Mistral Medium 3.5 measured
Neither model has a result on the other 30 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index41
Reasoning benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
GPQA DiamondNot measured34.9%Only Mistral Medium 3.5 measured
LiveBench reasoning83.9%Not measuredOnly Mistral Large 4 measured
MysteryMechanism (Vals AI)12.2%Not measuredOnly Mistral Large 4 measured
GPQA Diamond (Artificial Analysis run)Not measured74.8%Only Mistral Medium 3.5 measured
Humanity's Last Exam (Artificial Analysis run)35.0%13.8%Mistral Large 4
GPQA Diamond (Epoch AI run)88.1%Not measuredOnly Mistral Large 4 measured
Chess puzzles33.0%Not measuredOnly Mistral Large 4 measured
Mystery game puzzles17.0%Not measuredOnly Mistral Large 4 measured
LMArena Text: hard prompts14441436Mistral Large 4
LMArena Text: expert14441432Mistral Large 4
LMArena Text: hard prompts in English14421445Mistral Medium 3.5
LMArena Vision: diagrams12881254Mistral Large 4
LMArena Vision: homeworkNot measured1230Only Mistral Medium 3.5 measured
Kagi LLM BenchmarkNot measured41.4%Only Mistral Medium 3.5 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
OTIS Mock AIME98.3%Not measuredOnly Mistral Large 4 measured
FrontierMath, tiers 1 to 358.6%Not measuredOnly Mistral Large 4 measured
FrontierMath, tier 426.8%Not measuredOnly Mistral Large 4 measured
ProofBench10.0%9.0%Mistral Large 4
LMArena Text: math14691431Mistral Large 4
LMArena Text: mathematical work14621440Mistral Large 4
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index41
Knowledge benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
MMLU ProNot measured75.3%Only Mistral Medium 3.5 measured
CaseLaw (Vals AI)Not measured44.2%Only Mistral Medium 3.5 measured
CorpFin (Vals AI)Not measured58.8%Only Mistral Medium 3.5 measured
TaxEval (Vals AI)Not measured68.0%Only Mistral Medium 3.5 measured
MortgageTax (Vals AI)Not measured28.9%Only Mistral Medium 3.5 measured
MedCode (Vals AI)40.7%33.8%Mistral Large 4
SimpleQA Verified20.0%Not measuredOnly Mistral Large 4 measured
LMArena Text: science14481428Mistral Large 4
LMArena Text: medicine and healthcare14331409Mistral Large 4
LMArena Text: legal and government14251437Mistral Medium 3.5
LMArena Text: business and finance14391426Mistral Large 4
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
Design Arena: websites12571142Mistral Large 4
Design Arena: UI components12721076Mistral Large 4
Design Arena: game dev12251079Mistral Large 4
Design Arena: data viz12751120Mistral Large 4
Design Arena: 3D12521060Mistral Large 4
Design Arena: all code categories12591121Mistral Large 4
Design Arena: SVG1232949Mistral Large 4
Design Arena: ASCII art12021062Mistral Large 4
LiveBench design65.6%Not measuredOnly Mistral Large 4 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index183
General benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
LiveBench data analysis76.5%Not measuredOnly Mistral Large 4 measured
SAGE (Vals AI)Not measured37.6%Only Mistral Medium 3.5 measured
MedScribe (Vals AI)80.4%67.7%Mistral Large 4
Vals Multimodal IndexNot measured34.8%Only Mistral Medium 3.5 measured
IFBenchNot measured68.8%Only Mistral Medium 3.5 measured
Long context reasoning (AA-LCR)81.3%69.3%Mistral Large 4
DTBench88.2%75.5%Mistral Large 4
LMCA35.8%26.1%Mistral Large 4
Surface Evolver Bench28.1%26.9%Mistral Large 4
Furniture assembly20.8%Not measuredOnly Mistral Large 4 measured
LMArena Text14311421Mistral Large 4
LMArena Text: instruction following14221415Mistral Large 4
LMArena Text: creative writing13631374Mistral Medium 3.5
LMArena Vision12721222Mistral Large 4
LMArena Text: English14331433Mistral Medium 3.5
LMArena Text: non-English14221404Mistral Large 4
LMArena Text: Chinese14921444Mistral Large 4
LMArena Text: GermanNot measured1453Only Mistral Medium 3.5 measured
LMArena Text: Japanese1415Not measuredOnly Mistral Large 4 measured
LMArena Text: KoreanNot measured1384Only Mistral Medium 3.5 measured
LMArena Text: French14921448Mistral Large 4
LMArena Text: Spanish14551411Mistral Large 4
LMArena Text: Russian14171395Mistral Large 4
LMArena Text: PolishNot measured1430Only Mistral Medium 3.5 measured
LMArena Text: multi-turn14351423Mistral Large 4
LMArena Text: longer queries14281415Mistral Large 4
LMArena Text: writing and language13861384Mistral Large 4
LMArena Text: entertainment and media13781382Mistral Medium 3.5
LMArena Vision: English12831240Mistral Large 4
LMArena Vision: ChineseNot measured1244Only Mistral Medium 3.5 measured
LMArena Vision: reading text12841233Mistral Large 4
LMArena Vision: humorNot measured1216Only Mistral Medium 3.5 measured
LMArena Vision: creative writingNot measured1198Only Mistral Medium 3.5 measured
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Mistral Large 4 and Mistral Medium 3.5
BenchmarkMistral Large 4Mistral Medium 3.5Leader
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

Mistral Large 4$0.0034Fits in one request
Mistral Medium 3.5$0.0053Fits in one request

Mistral Large 4 costs less

Repository review

50K input + 3K output tokens

Mistral Large 4$0.081Fits in one request
Mistral Medium 3.5$0.098Fits in one request

Mistral Large 4 costs less

Agent loop

200K input + 10K output tokens

Mistral Large 4$0.314Fits in one request
Mistral Medium 3.5$0.375Fits in one request

Mistral Large 4 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 Large 4 and Mistral Medium 3.5
SpecificationMistral Large 4Mistral Medium 3.5
MakerMistral AIMistral AI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 6, 2026April 30, 2026
Context window1.05M262K
Input $/Mtok$1.36$1.50
Output $/Mtok$4.18$7.50
Coding index56.425.5
Independent measurements behind it53
Cost per solved taskNot computable$6.02
SourceOpenRouter listingOpenRouter listing

Questions

Is Mistral Large 4 better than Mistral Medium 3.5 for coding?

Pick Mistral Large 4 for coding: it scores 56.4 on the Vibe Coding Index against 25.5 for Mistral Medium 3.5. Pick Mistral Medium 3.5 for work measured by LMArena Text: hard prompts in English or LMArena Text: legal and government, where it leads.

Which is cheaper, Mistral Large 4 or Mistral Medium 3.5?

Mistral Large 4 costs $1.36 per million input tokens and $4.18 per million output tokens; Mistral Medium 3.5 costs $1.50 and $7.50. Cost per solved task is known for Mistral Medium 3.5 only.

Which has the bigger context window, Mistral Large 4 or Mistral Medium 3.5?

Mistral Large 4, with 1.05M tokens against 262K.

How many benchmarks is the Mistral Large 4 vs Mistral Medium 3.5 comparison based on?

57 benchmarks have a result for both models as of October 22, 2026. Mistral Large 4's coding index rests on 5 independent benchmarks and Mistral Medium 3.5's on 3. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/mistral-large-4-0-vs-mistral-medium-3-5">LLMBenchmark.ai, Mistral Large 4 vs Mistral Medium 3.5</a></p>