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Claude Haiku 4.5 vs Mistral Large 4

Mistral Large 4 leads Claude Haiku 4.5 on coding, 56.4 to 35.6 on the Vibe Coding Index, at about the same output price ($4.18 vs $5.00 per million). Updated October 22, 2026; 59 benchmarks have a result for both.

Replace Claude Haiku 4.5 Replace Mistral Large 4
Claude Haiku 4.5Anthropic
Coding
35.6
Overall
41.0
Output $/M
$5.00
5
Mistral Large 4Mistral AI
Coding
56.4
Overall
54.6
Output $/M
$4.18
54
vs boards won of 59 shared

Claude Haiku 4.5 or Mistral Large 4: which to pick

Pick Mistral Large 4 for coding: it scores 56.4 on the Vibe Coding Index against 35.6 for Claude Haiku 4.5.

Pick Claude Haiku 4.5 for work measured by LiveBench research or LiveBench browser, where it leads.

Model AClaude Haiku 4.5Anthropic35.6/1004 independent benchmarks$0.56 per solved taskModel BMistral Large 4Mistral AI56.4/1005 independent benchmarksNo cost per solved task
Shared results
59
Claude Haiku 4.5 only
36
Mistral Large 4 only
22
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
Claude Haiku 4.5 35.6 from 4 benchmarks, Mistral Large 4 56.4 from 5 benchmarks.
Widest category
Coding, 26.0 points apart on average over 8 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Claude Haiku 4.5 11.4% against Mistral Large 4 78.4%, 67.0 points apart on a 0 to 100 scale.
Output price
Claude Haiku 4.5 $5.00 against Mistral Large 4 $4.18 per million output tokens, 1.2x apart.
Context window
Claude Haiku 4.5 takes 200K tokens, Mistral Large 4 1.05M.

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
CategoryClaude Haiku 4.5BarsMistral Large 4Ties
Coding08
Intelligence02
Agentic work25
Reasoning06
Math03
Knowledge06
Web design09
General315
All shared boards554
CodingLike-for-likeSix of these boards feed the Vibe Coding Index08
Coding benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
SWE-bench Verified66.6%Not measuredOnly Claude Haiku 4.5 measured
SWE-bench Multilingual64.7%Not measuredOnly Claude Haiku 4.5 measured
LiveBench coding48.1%60.0%Mistral Large 4
LMArena WebDev13301543Mistral Large 4
AA Coding Index43.9Not measuredOnly Claude Haiku 4.5 measured
LiveCodeBench (Vals AI)41.2%Not measuredOnly Claude Haiku 4.5 measured
SWE-bench Verified (Vals AI)66.6%Not measuredOnly Claude Haiku 4.5 measured
Terminal-Bench 4 (Vals AI)Not measured27.8%Only Mistral Large 4 measured
Vibe Code Bench (Vals AI)11.4%78.4%Mistral Large 4
Code migration (Vals AI)7.5%30.6%Mistral Large 4
ProgramBench (Vals AI)0.0%Not measuredOnly Claude Haiku 4.5 measured
IOI (Vals AI)Not measured45.3%Only Mistral Large 4 measured
Terminal-Bench 2.1 (Vals AI)43.8%Not measuredOnly Claude Haiku 4.5 measured
SWE-bench Multimodal (Vals AI)Not measured33.1%Only Mistral Large 4 measured
Vibe Code Bench 1-100 (Vals AI)Not measured14.3%Only Mistral Large 4 measured
SciCodeNot measured54.2%Only Mistral Large 4 measured
Terminal-Bench35.5%Not measuredOnly Claude Haiku 4.5 measured
FrontierCodeNot measured39.4%Only Mistral Large 4 measured
WeirdML45.4%Not measuredOnly Claude Haiku 4.5 measured
ALE-BenchNot measured1213.2Only Mistral Large 4 measured
LMArena Text: coding14541478Mistral Large 4
LMArena Text: software and IT14391467Mistral Large 4
LMArena WebDev: React13261559Mistral Large 4
LMArena WebDev: HTML13181487Mistral Large 4
Neither model has a result on the other 15 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
AA Intelligence Index16.938.4Mistral Large 4
Epoch Capabilities Index142.2150.0Mistral Large 4
Agentic workLike-for-likePublic boards, shown as published, kept out of the index25
Agentic work benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
AA Agentic Index8.0Not measuredOnly Claude Haiku 4.5 measured
LiveBench research42.2%28.1%Claude Haiku 4.5
LiveBench browser40.0%8.0%Claude Haiku 4.5
LiveBench long agentic11.1%11.8%Mistral Large 4
Finance Agent (Vals AI)31.0%54.7%Mistral Large 4
Tax Agent Bench (Vals AI)5.9%30.4%Mistral Large 4
Legal Research Bench (Vals AI)10.6%31.7%Mistral Large 4
Harvey's Legal Agent Benchmark (Vals AI)Not measured17.5%Only Mistral Large 4 measured
Excel Modeling Benchmark (Vals AI)22.7%56.2%Mistral Large 4
BioMysteryBench (Vals AI)Not measured67.0%Only Mistral Large 4 measured
BALROG31.2%Not measuredOnly Claude Haiku 4.5 measured
DeepResearch Bench45.5%Not measuredOnly Claude Haiku 4.5 measured
Vending-Bench 2$459Not measuredOnly Claude Haiku 4.5 measured
Berkeley Function Calling Leaderboard (BFCL)68.7%Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 27 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index06
Reasoning benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
GPQA Diamond72.2%Not measuredOnly Claude Haiku 4.5 measured
LiveBench reasoning61.7%83.9%Mistral Large 4
MysteryMechanism (Vals AI)Not measured12.2%Only Mistral Large 4 measured
MMMU Pro (Vals AI)46.1%Not measuredOnly Claude Haiku 4.5 measured
Humanity's Last Exam (Artificial Analysis run)Not measured35.0%Only Mistral Large 4 measured
GPQA Diamond (Epoch AI run)71.2%88.1%Mistral Large 4
ARC-AGI47.7%Not measuredOnly Claude Haiku 4.5 measured
ARC-AGI-24.0%Not measuredOnly Claude Haiku 4.5 measured
Chess puzzles8.0%33.0%Mistral Large 4
Mystery game puzzlesNot measured17.0%Only Mistral Large 4 measured
LMArena Text: hard prompts14211444Mistral Large 4
LMArena Text: expert14431444Mistral Large 4
LMArena Text: hard prompts in English14351442Mistral Large 4
LMArena Vision: diagramsNot measured1288Only Mistral Large 4 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
AIME82.7%Not measuredOnly Claude Haiku 4.5 measured
MGSM (Vals AI)92.2%Not measuredOnly Claude Haiku 4.5 measured
OTIS Mock AIME66.7%98.3%Mistral Large 4
FrontierMath, tiers 1 to 3Not measured58.6%Only Mistral Large 4 measured
FrontierMath, tier 4Not measured26.8%Only Mistral Large 4 measured
ProofBenchNot measured10.0%Only Mistral Large 4 measured
MATH level 596.4%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: math13981469Mistral Large 4
LMArena Text: mathematical work14301462Mistral Large 4
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index06
Knowledge benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
MMLU Pro78.7%Not measuredOnly Claude Haiku 4.5 measured
LegalBench (Vals AI)81.2%Not measuredOnly Claude Haiku 4.5 measured
CaseLaw (Vals AI)56.5%Not measuredOnly Claude Haiku 4.5 measured
CorpFin (Vals AI)60.6%Not measuredOnly Claude Haiku 4.5 measured
TaxEval (Vals AI)67.5%Not measuredOnly Claude Haiku 4.5 measured
MortgageTax (Vals AI)62.2%Not measuredOnly Claude Haiku 4.5 measured
MedQA (Vals AI)79.6%Not measuredOnly Claude Haiku 4.5 measured
MedCode (Vals AI)32.7%40.7%Mistral Large 4
SimpleQA Verified13.2%20.0%Mistral Large 4
LMArena Text: science14061448Mistral Large 4
LMArena Text: medicine and healthcare13941433Mistral Large 4
LMArena Text: legal and government14001425Mistral Large 4
LMArena Text: business and finance14001439Mistral Large 4
Neither model has a result on the other 5 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index09
Web design benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
Design Arena: websites11221257Mistral Large 4
Design Arena: UI components10971272Mistral Large 4
Design Arena: game dev10971225Mistral Large 4
Design Arena: data viz11241275Mistral Large 4
Design Arena: 3D10711252Mistral Large 4
Design Arena: all code categories11141259Mistral Large 4
Design Arena: SVG10251232Mistral Large 4
Design Arena: ASCII art11401202Mistral Large 4
LiveBench design59.9%65.6%Mistral Large 4
GeneralLike-for-likePublic boards, shown as published, kept out of the index315
General benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 4Leader
LiveBench data analysis59.3%76.5%Mistral Large 4
Public Benefits Bench (Vals AI)54.3%Not measuredOnly Claude Haiku 4.5 measured
SAGE (Vals AI)31.8%Not measuredOnly Claude Haiku 4.5 measured
MedScribe (Vals AI)85.2%80.4%Claude Haiku 4.5
Vals Multimodal Index42.9%Not measuredOnly Claude Haiku 4.5 measured
Long context reasoning (AA-LCR)Not measured81.3%Only Mistral Large 4 measured
DTBench73.6%88.2%Mistral Large 4
LMCA30.9%35.8%Mistral Large 4
Surface Evolver BenchNot measured28.1%Only Mistral Large 4 measured
Furniture assemblyNot measured20.8%Only Mistral Large 4 measured
ExploitBench13.7%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text13971431Mistral Large 4
LMArena Text: instruction following14141422Mistral Large 4
LMArena Text: creative writing13711363Claude Haiku 4.5
LMArena VisionNot measured1272Only Mistral Large 4 measured
LMArena Text: English14141433Mistral Large 4
LMArena Text: non-English13771422Mistral Large 4
LMArena Text: Chinese14181492Mistral Large 4
LMArena Text: German1374Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: Japanese13381415Mistral Large 4
LMArena Text: Korean1346Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: French14111492Mistral Large 4
LMArena Text: Spanish14211455Mistral Large 4
LMArena Text: Russian13811417Mistral Large 4
LMArena Text: Polish1343Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: multi-turn14091435Mistral Large 4
LMArena Text: longer queries14271428Mistral Large 4
LMArena Text: writing and language13861386Claude Haiku 4.5
LMArena Text: entertainment and media13691378Mistral Large 4
LMArena Vision: EnglishNot measured1283Only Mistral Large 4 measured
LMArena Vision: reading textNot measured1284Only Mistral Large 4 measured
LMArena Document1420Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Haiku 4.5 and Mistral Large 4
BenchmarkClaude Haiku 4.5Mistral Large 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

Claude Haiku 4.5$0.0035Fits in one request
Mistral Large 4$0.0034Fits in one request

Mistral Large 4 costs less

Repository review

50K input + 3K output tokens

Claude Haiku 4.5$0.065Fits in one request
Mistral Large 4$0.081Fits in one request

Claude Haiku 4.5 costs less

Agent loop

200K input + 10K output tokens

Claude Haiku 4.5$0.250Exceeds the context window
Mistral Large 4$0.314Fits in one request

Claude Haiku 4.5 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 Claude Haiku 4.5 and Mistral Large 4
SpecificationAnthropic Claude Haiku 4.5Mistral Large 4
MakerAnthropicMistral AI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 15, 2025October 6, 2026
Context window200K1.05M
Input $/Mtok$1.00$1.36
Output $/Mtok$5.00$4.18
Coding index35.656.4
Independent measurements behind it45
Cost per solved task$0.56Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Haiku 4.5 better than Mistral Large 4 for coding?

Pick Mistral Large 4 for coding: it scores 56.4 on the Vibe Coding Index against 35.6 for Claude Haiku 4.5. Pick Claude Haiku 4.5 for work measured by LiveBench research or LiveBench browser, where it leads.

Which is cheaper, Claude Haiku 4.5 or Mistral Large 4?

Claude Haiku 4.5 costs $1.00 per million input tokens and $5.00 per million output tokens; Mistral Large 4 costs $1.36 and $4.18. Cost per solved task is known for Claude Haiku 4.5 only.

Which has the bigger context window, Claude Haiku 4.5 or Mistral Large 4?

Mistral Large 4, with 1.05M tokens against 200K.

How many benchmarks is the Claude Haiku 4.5 vs Mistral Large 4 comparison based on?

59 benchmarks have a result for both models as of October 22, 2026. Claude Haiku 4.5's coding index rests on 4 independent benchmarks and Mistral Large 4's on 5. 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/claude-haiku-4-5-vs-mistral-large-4-0">LLMBenchmark.ai, Claude Haiku 4.5 vs Mistral Large 4</a></p>