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Mistral Large 4 vs Solar Pro 4

Mistral Large 4 leads Solar Pro 4 on the Artificial Analysis Intelligence Index, 38.4 to 28.2, and Solar Pro 4 costs 7.0x less per output token ($0.60 vs $4.18 per million). Updated October 22, 2026; 39 benchmarks have a result for both.

Replace Mistral Large 4 Replace Solar Pro 4
Mistral Large 4Mistral AI
Coding
56.4
Overall
54.6
Output $/M
$4.18
39
Solar Pro 4Upstage
Coding
No data
Overall
No data
Output $/M
$0.60
0
vs boards won of 39 shared

Mistral Large 4 or Solar Pro 4: which to pick

Only Mistral Large 4 has a coding score, 56.4 on the Vibe Coding Index; Solar Pro 4 has none, so the two cannot be ranked on coding.

Pick Solar Pro 4 for output tokens 7.0x cheaper ($0.60 vs $4.18 per million).

Model AMistral Large 4Mistral AI56.4/1005 independent benchmarksNo cost per solved taskModel BSolar Pro 4UpstageNot benchmarked1 independent benchmarkNo cost per solved task
Shared results
39
Mistral Large 4 only
42
Solar Pro 4 only
6
Like-for-like categories
7 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, Solar Pro 4 not benchmarked.
Widest category
Coding, 18.6 points apart on average over 7 shared benchmarks.
Widest single gap
ALE-Bench: Mistral Large 4 1213.2 against Solar Pro 4 179.3, 34.5 points apart on a 0 to 100 scale.
Output price
Mistral Large 4 $4.18 against Solar Pro 4 $0.60 per million output tokens, 7.0x apart.
Context window
Mistral Large 4 takes 1.05M tokens, Solar Pro 4 524K.

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 4BarsSolar Pro 4Ties
Coding70
Intelligence10
Reasoning40
Math20
Knowledge40
Web design60
General150
All shared boards390
CodingLike-for-likeSix of these boards feed the Vibe Coding Index70
Coding benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
LiveBench coding60.0%Not measuredOnly Mistral Large 4 measured
LMArena WebDev15431371Mistral Large 4
AA Coding IndexNot measured52.7Only Solar Pro 4 measured
Terminal-Bench 4 (Vals AI)27.8%Not measuredOnly Mistral Large 4 measured
Vibe Code Bench (Vals AI)78.4%Not measuredOnly Mistral Large 4 measured
Code migration (Vals AI)30.6%Not measuredOnly Mistral Large 4 measured
IOI (Vals AI)45.3%Not measuredOnly Mistral Large 4 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%48.0%Mistral Large 4
FrontierCode39.4%Not measuredOnly Mistral Large 4 measured
ALE-Bench1213.2179.3Mistral Large 4
LMArena Text: coding14781438Mistral Large 4
LMArena Text: software and IT14671431Mistral Large 4
LMArena WebDev: React15591363Mistral Large 4
LMArena WebDev: HTML14871371Mistral Large 4
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
AA Intelligence Index38.428.2Mistral Large 4
Epoch Capabilities Index150.0Not measuredOnly Mistral Large 4 measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index10 boards, none shared
Agentic work benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
Design Arena: agents building web appsNot measured1105Only Solar Pro 4 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%Not measuredOnly Mistral Large 4 measured
Tax Agent Bench (Vals AI)30.4%Not measuredOnly Mistral Large 4 measured
Legal Research Bench (Vals AI)31.7%Not measuredOnly Mistral Large 4 measured
Harvey's Legal Agent Benchmark (Vals AI)17.5%Not measuredOnly Mistral Large 4 measured
Excel Modeling Benchmark (Vals AI)56.2%Not measuredOnly Mistral Large 4 measured
BioMysteryBench (Vals AI)67.0%Not measuredOnly Mistral Large 4 measured
Neither model has a result on the other 31 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index40
Reasoning benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
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 measured89.1%Only Solar Pro 4 measured
Humanity's Last Exam (Artificial Analysis run)35.0%29.8%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 prompts14441400Mistral Large 4
LMArena Text: expert14441428Mistral Large 4
LMArena Text: hard prompts in English14421427Mistral Large 4
LMArena Vision: diagrams1288Not measuredOnly Mistral Large 4 measured
Neither model has a result on the other 11 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
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%Not measuredOnly Mistral Large 4 measured
LMArena Text: math14691421Mistral Large 4
LMArena Text: mathematical work14621427Mistral Large 4
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
MedCode (Vals AI)40.7%Not measuredOnly Mistral Large 4 measured
SimpleQA Verified20.0%Not measuredOnly Mistral Large 4 measured
LMArena Text: science14481404Mistral Large 4
LMArena Text: medicine and healthcare14331374Mistral Large 4
LMArena Text: legal and government14251383Mistral Large 4
LMArena Text: business and finance14391381Mistral Large 4
Neither model has a result on the other 12 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index60
Web design benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
Design Arena: websites12571176Mistral Large 4
Design Arena: UI components12721147Mistral Large 4
Design Arena: game dev12251169Mistral Large 4
Design Arena: data viz12751177Mistral Large 4
Design Arena: 3D12521178Mistral Large 4
Design Arena: all code categories12591182Mistral Large 4
Design Arena: SVG1232Not measuredOnly Mistral Large 4 measured
Design Arena: ASCII art1202Not measuredOnly Mistral Large 4 measured
LiveBench design65.6%Not measuredOnly Mistral Large 4 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index150
General benchmarks for Mistral Large 4 and Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
LiveBench data analysis76.5%Not measuredOnly Mistral Large 4 measured
MedScribe (Vals AI)80.4%Not measuredOnly Mistral Large 4 measured
Long context reasoning (AA-LCR)81.3%70.7%Mistral Large 4
DTBench88.2%Not measuredOnly Mistral Large 4 measured
LMCA35.8%Not measuredOnly Mistral Large 4 measured
Surface Evolver Bench28.1%Not measuredOnly Mistral Large 4 measured
Furniture assembly20.8%Not measuredOnly Mistral Large 4 measured
LMArena Text14311388Mistral Large 4
LMArena Text: instruction following14221375Mistral Large 4
LMArena Text: creative writing13631317Mistral Large 4
LMArena Vision1272Not measuredOnly Mistral Large 4 measured
LMArena Text: English14331414Mistral Large 4
LMArena Text: non-English14221363Mistral Large 4
LMArena Text: Chinese14921422Mistral Large 4
LMArena Text: GermanNot measured1358Only Solar Pro 4 measured
LMArena Text: Japanese14151320Mistral Large 4
LMArena Text: KoreanNot measured1383Only Solar Pro 4 measured
LMArena Text: French14921400Mistral Large 4
LMArena Text: Spanish14551409Mistral Large 4
LMArena Text: Russian14171357Mistral Large 4
LMArena Text: PolishNot measured1304Only Solar Pro 4 measured
LMArena Text: multi-turn14351385Mistral Large 4
LMArena Text: longer queries14281382Mistral Large 4
LMArena Text: writing and language13861344Mistral Large 4
LMArena Text: entertainment and media13781332Mistral Large 4
LMArena Vision: English1283Not measuredOnly Mistral Large 4 measured
LMArena Vision: reading text1284Not measuredOnly Mistral Large 4 measured
Neither model has a result on the other 19 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 Solar Pro 4
BenchmarkMistral Large 4Solar Pro 4Leader
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
Solar Pro 4$0.0004Fits in one request

Solar Pro 4 costs less

Repository review

50K input + 3K output tokens

Mistral Large 4$0.081Fits in one request
Solar Pro 4$0.0093Fits in one request

Solar Pro 4 costs less

Agent loop

200K input + 10K output tokens

Mistral Large 4$0.314Fits in one request
Solar Pro 4$0.036Fits in one request

Solar Pro 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 Solar Pro 4
SpecificationMistral Large 4Upstage Solar Pro 4
MakerMistral AIUpstage
WeightsNo public weights listedNo public weights listed
ReleasedOctober 6, 2026August 10, 2026
Context window1.05M524K
Input $/Mtok$1.36$0.15
Output $/Mtok$4.18$0.60
Coding index56.4Not benchmarked
Independent measurements behind it51
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Mistral Large 4 better than Solar Pro 4 for coding?

Only Mistral Large 4 has a coding score, 56.4 on the Vibe Coding Index; Solar Pro 4 has none, so the two cannot be ranked on coding. Pick Solar Pro 4 for output tokens 7.0x cheaper ($0.60 vs $4.18 per million).

Which is cheaper, Mistral Large 4 or Solar Pro 4?

Mistral Large 4 costs $1.36 per million input tokens and $4.18 per million output tokens; Solar Pro 4 costs $0.15 and $0.60. Cost per solved task is known for neither of them.

Which has the bigger context window, Mistral Large 4 or Solar Pro 4?

Mistral Large 4, with 1.05M tokens against 524K.

How many benchmarks is the Mistral Large 4 vs Solar Pro 4 comparison based on?

39 benchmarks have a result for both models as of October 22, 2026. Mistral Large 4's coding index rests on 5 independent benchmarks and Solar Pro 4's on 1. Where only one model has a result, the page says so instead of naming a winner.

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