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Claude Sonnet 5 vs GPT-5 Mini

Claude Sonnet 5 leads GPT-5 Mini on coding, 57.7 to 34.2 on the Vibe Coding Index, and GPT-5 Mini costs 5.0x less per output token ($2.00 vs $10.00 per million). Updated October 22, 2026; 75 benchmarks have a result for both.

Replace Claude Sonnet 5 Replace GPT-5 Mini
Claude Sonnet 5Anthropic
Coding
57.7
Overall
63.2
Output $/M
$10.00
73
GPT-5 MiniOpenAI
Coding
34.2
Overall
43.7
Output $/M
$2.00
2
vs boards won of 75 shared

Claude Sonnet 5 or GPT-5 Mini: which to pick

Pick Claude Sonnet 5 for coding: it scores 57.7 on the Vibe Coding Index against 34.2 for GPT-5 Mini.

Pick GPT-5 Mini for output tokens 5.0x cheaper ($2.00 vs $10.00 per million) and a lower cost per solved task ($0.08 against $1.87).

Model AClaude Sonnet 5Anthropic57.7/1006 independent benchmarks$1.87 per solved taskModel BGPT-5 MiniOpenAI34.2/1002 independent benchmarks$0.08 per solved task
Shared results
75
Claude Sonnet 5 only
46
GPT-5 Mini only
26
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 Sonnet 5 57.7 from 6 benchmarks, GPT-5 Mini 34.2 from 2 benchmarks.
Widest category
Agentic work, 39.9 points apart on average over 1 shared benchmark.
Widest single gap
ProofBench: Claude Sonnet 5 77.0% against GPT-5 Mini 9.0%, 68.0 points apart on a 0 to 100 scale.
Output price
Claude Sonnet 5 $10.00 against GPT-5 Mini $2.00 per million output tokens, 5.0x apart.
Context window
Claude Sonnet 5 takes 1M tokens, GPT-5 Mini 400K.

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 Sonnet 5BarsGPT-5 MiniTies
Coding61
Intelligence20
Agentic work10
Reasoning120
Math60
Knowledge110
Web design80
General271
All shared boards732
CodingLike-for-likeSix of these boards feed the Vibe Coding Index61
Coding benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
SWE-bench VerifiedNot measured59.8%Only GPT-5 Mini measured
SWE-bench MultilingualNot measured39.7%Only GPT-5 Mini measured
LiveBench coding74.7%Not measuredOnly Claude Sonnet 5 measured
LMArena WebDev1540Not measuredOnly Claude Sonnet 5 measured
AA Coding Index71.5Not measuredOnly Claude Sonnet 5 measured
LiveCodeBench (Vals AI)82.4%86.6%GPT-5 Mini
SWE-bench Verified (Vals AI)79.6%60.8%Claude Sonnet 5
Terminal-Bench 4 (Vals AI)10.6%Not measuredOnly Claude Sonnet 5 measured
Vibe Code Bench (Vals AI)81.3%14.2%Claude Sonnet 5
Code migration (Vals AI)44.4%Not measuredOnly Claude Sonnet 5 measured
ProgramBench (Vals AI)0.0%Not measuredOnly Claude Sonnet 5 measured
IOI (Vals AI)45.0%Not measuredOnly Claude Sonnet 5 measured
Terminal-Bench 2.1 (Vals AI)74.5%Not measuredOnly Claude Sonnet 5 measured
Vibe Code Bench 1-100 (Vals AI)13.8%Not measuredOnly Claude Sonnet 5 measured
SkillsBench (Vals AI)46.5%Not measuredOnly Claude Sonnet 5 measured
CyberBench (Vals AI)70.3%Not measuredOnly Claude Sonnet 5 measured
LiveCodeBench (Artificial Analysis run)Not measured83.8%Only GPT-5 Mini measured
SciCode54.3%39.0%Claude Sonnet 5
Terminal-Bench Hard (Artificial Analysis run)Not measured33.3%Only GPT-5 Mini measured
Terminal-BenchNot measured34.8%Only GPT-5 Mini measured
FrontierCode42.7%Not measuredOnly Claude Sonnet 5 measured
GSO-Bench37.3%Not measuredOnly Claude Sonnet 5 measured
WeirdML68.8%52.7%Claude Sonnet 5
ALE-Bench1463.1Not measuredOnly Claude Sonnet 5 measured
LMArena Text: coding14831406Claude Sonnet 5
LMArena Text: software and IT14741394Claude Sonnet 5
LMArena WebDev: React1541Not measuredOnly Claude Sonnet 5 measured
LMArena WebDev: HTML1527Not measuredOnly Claude Sonnet 5 measured
LMArena WebDev: from an image1540Not measuredOnly Claude Sonnet 5 measured
SciCode10.7%Not measuredOnly Claude Sonnet 5 measured
Neither model has a result on the other 9 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
AA Intelligence Index38.220.6Claude Sonnet 5
Epoch Capabilities Index156.9145.3Claude Sonnet 5
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
AA Agentic Index43.6Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building web apps1245Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building full-stack apps1249Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building mobile apps1215Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building Android apps1227Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building Godot games1225Not measuredOnly Claude Sonnet 5 measured
Design Arena: agents building games1227Not measuredOnly Claude Sonnet 5 measured
Design Arena: HTML slides1168Not measuredOnly Claude Sonnet 5 measured
Design Arena: PowerPoint slides1191Not measuredOnly Claude Sonnet 5 measured
Design Arena: spreadsheets1035Not measuredOnly Claude Sonnet 5 measured
LiveBench research82.8%Not measuredOnly Claude Sonnet 5 measured
LiveBench browser72.0%Not measuredOnly Claude Sonnet 5 measured
LiveBench long agentic39.0%Not measuredOnly Claude Sonnet 5 measured
SREBench (Vals AI)0.4%Not measuredOnly Claude Sonnet 5 measured
Finance Agent (Vals AI)53.9%Not measuredOnly Claude Sonnet 5 measured
Tax Agent Bench (Vals AI)29.4%Not measuredOnly Claude Sonnet 5 measured
Legal Research Bench (Vals AI)41.8%Not measuredOnly Claude Sonnet 5 measured
Excel Modeling Benchmark (Vals AI)66.3%Not measuredOnly Claude Sonnet 5 measured
Terminal-Bench-Science (Vals AI)5.7%Not measuredOnly Claude Sonnet 5 measured
τ²-Bench TelecomNot measured71.1%Only GPT-5 Mini measured
APEX-Agents54.5%Not measuredOnly Claude Sonnet 5 measured
Vending-Bench 2$6,378-$31Claude Sonnet 5
Berkeley Function Calling Leaderboard (BFCL)Not measured55.5%Only GPT-5 Mini measured
Neither model has a result on the other 18 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index120
Reasoning benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
GPQA Diamond88.9%80.3%Claude Sonnet 5
LiveBench reasoning88.7%Not measuredOnly Claude Sonnet 5 measured
MMMU Pro (Vals AI)83.0%78.9%Claude Sonnet 5
GPQA Diamond (Artificial Analysis run)91.1%82.8%Claude Sonnet 5
Humanity's Last Exam (Artificial Analysis run)41.3%21.5%Claude Sonnet 5
GPQA Diamond (Epoch AI run)90.5%75.0%Claude Sonnet 5
ARC-AGINot measured54.3%Only GPT-5 Mini measured
ARC-AGI-2Not measured4.4%Only GPT-5 Mini measured
SimpleBench60.6%Not measuredOnly Claude Sonnet 5 measured
Chess puzzles45.0%24.0%Claude Sonnet 5
Mystery game puzzles35.0%10.0%Claude Sonnet 5
VPCTNot measured40.2%Only GPT-5 Mini measured
LMArena Text: hard prompts14611380Claude Sonnet 5
LMArena Text: expert14891379Claude Sonnet 5
LMArena Text: hard prompts in English14641383Claude Sonnet 5
LMArena Vision: diagrams12931202Claude Sonnet 5
LMArena Vision: homework13111210Claude Sonnet 5
Kagi LLM BenchmarkNot measured70.3%Only GPT-5 Mini measured
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
AIMENot measured91.5%Only GPT-5 Mini measured
MATH 500 (Vals AI)Not measured94.8%Only GPT-5 Mini measured
MGSM (Vals AI)Not measured92.6%Only GPT-5 Mini measured
AA Math IndexNot measured90.7Only GPT-5 Mini measured
AIME 2025 (Artificial Analysis run)Not measured90.7%Only GPT-5 Mini measured
OTIS Mock AIME94.7%86.7%Claude Sonnet 5
FrontierMath, tiers 1 to 365.6%46.7%Claude Sonnet 5
FrontierMath, tier 429.3%12.2%Claude Sonnet 5
ProofBench77.0%9.0%Claude Sonnet 5
MATH level 5Not measured97.8%Only GPT-5 Mini measured
LMArena Text: math14671378Claude Sonnet 5
LMArena Text: mathematical work14811380Claude Sonnet 5
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index110
Knowledge benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
MMLU Pro87.5%82.2%Claude Sonnet 5
LegalBench (Vals AI)83.9%81.8%Claude Sonnet 5
CaseLaw (Vals AI)Not measured68.5%Only GPT-5 Mini measured
CorpFin (Vals AI)67.0%60.2%Claude Sonnet 5
TaxEval (Vals AI)75.6%75.2%Claude Sonnet 5
MortgageTax (Vals AI)70.0%66.9%Claude Sonnet 5
MedQA (Vals AI)Not measured96.1%Only GPT-5 Mini measured
MedCode (Vals AI)47.5%43.0%Claude Sonnet 5
MMLU Pro (Artificial Analysis run)Not measured83.7%Only GPT-5 Mini measured
SimpleQA Verified33.7%21.6%Claude Sonnet 5
LMArena Text: science14601371Claude Sonnet 5
LMArena Text: medicine and healthcare14421380Claude Sonnet 5
LMArena Text: legal and government14541375Claude Sonnet 5
LMArena Text: business and finance14361358Claude Sonnet 5
FACTS Benchmark SuiteNot measured38.6%Only GPT-5 Mini measured
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
Design Arena: websites12741125Claude Sonnet 5
Design Arena: UI components12771103Claude Sonnet 5
Design Arena: game dev12771129Claude Sonnet 5
Design Arena: data viz12511131Claude Sonnet 5
Design Arena: 3D12611036Claude Sonnet 5
Design Arena: all code categories12751114Claude Sonnet 5
Design Arena: SVG11921091Claude Sonnet 5
Design Arena: ASCII art12071125Claude Sonnet 5
LiveBench design82.0%Not measuredOnly Claude Sonnet 5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index271
General benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
LiveBench data analysis71.7%Not measuredOnly Claude Sonnet 5 measured
Public Benefits Bench (Vals AI)66.0%Not measuredOnly Claude Sonnet 5 measured
SAGE (Vals AI)48.9%43.0%Claude Sonnet 5
MedScribe (Vals AI)76.0%80.6%GPT-5 Mini
Vals Multimodal Index68.8%Not measuredOnly Claude Sonnet 5 measured
IFBenchNot measured75.4%Only GPT-5 Mini measured
Long context reasoning (AA-LCR)82.0%72.3%Claude Sonnet 5
DTBench92.5%80.5%Claude Sonnet 5
LMCA50.0%34.2%Claude Sonnet 5
Fiction.LiveBenchNot measured69.4%Only GPT-5 Mini measured
Creative writing (Lech Mazur)Not measured83.1%Only GPT-5 Mini measured
Surface Evolver Bench60.0%Not measuredOnly Claude Sonnet 5 measured
LMArena Text14421373Claude Sonnet 5
LMArena Text: instruction following14521357Claude Sonnet 5
LMArena Text: creative writing14161325Claude Sonnet 5
LMArena Vision12731202Claude Sonnet 5
LMArena Text: English14501379Claude Sonnet 5
LMArena Text: non-English14311363Claude Sonnet 5
LMArena Text: Chinese14781386Claude Sonnet 5
LMArena Text: German14421366Claude Sonnet 5
LMArena Text: Japanese14221341Claude Sonnet 5
LMArena Text: Korean14121308Claude Sonnet 5
LMArena Text: French14631386Claude Sonnet 5
LMArena Text: Spanish14381354Claude Sonnet 5
LMArena Text: Russian14501362Claude Sonnet 5
LMArena Text: Polish14251378Claude Sonnet 5
LMArena Text: multi-turn14531363Claude Sonnet 5
LMArena Text: longer queries14621355Claude Sonnet 5
LMArena Text: writing and language14361344Claude Sonnet 5
LMArena Text: entertainment and media14111340Claude Sonnet 5
LMArena Vision: English12751216Claude Sonnet 5
LMArena Vision: Chinese13311214Claude Sonnet 5
LMArena Vision: reading text12881199Claude Sonnet 5
LMArena Vision: humor12611205Claude Sonnet 5
LMArena Vision: captioningNot measured1217Only GPT-5 Mini measured
LMArena Vision: recognizing thingsNot measured1226Only GPT-5 Mini measured
LMArena Vision: creative writing12461181Claude Sonnet 5
LMArena Document1466Not measuredOnly Claude Sonnet 5 measured
Neither model has a result on the other 8 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Sonnet 5 and GPT-5 Mini
BenchmarkClaude Sonnet 5GPT-5 MiniLeader
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 Sonnet 5$0.0070Fits in one request
GPT-5 Mini$0.0013Fits in one request

GPT-5 Mini costs less

Repository review

50K input + 3K output tokens

Claude Sonnet 5$0.130Fits in one request
GPT-5 Mini$0.018Fits in one request

GPT-5 Mini costs less

Agent loop

200K input + 10K output tokens

Claude Sonnet 5$0.500Fits in one request
GPT-5 Mini$0.070Fits in one request

GPT-5 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 Claude Sonnet 5 and GPT-5 Mini
SpecificationAnthropic Claude Sonnet 5OpenAI GPT-5 Mini
MakerAnthropicOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedJune 30, 2026August 7, 2025
Context window1M400K
Input $/Mtok$2.00$0.25
Output $/Mtok$10.00$2.00
Coding index57.734.2
Independent measurements behind it62
Cost per solved task$1.87$0.08
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Sonnet 5 better than GPT-5 Mini for coding?

Pick Claude Sonnet 5 for coding: it scores 57.7 on the Vibe Coding Index against 34.2 for GPT-5 Mini. Pick GPT-5 Mini for output tokens 5.0x cheaper ($2.00 vs $10.00 per million) and a lower cost per solved task ($0.08 against $1.87).

Which is cheaper, Claude Sonnet 5 or GPT-5 Mini?

Claude Sonnet 5 costs $2.00 per million input tokens and $10.00 per million output tokens; GPT-5 Mini costs $0.25 and $2.00. Per solved SWE-bench Verified task, Claude Sonnet 5 costs $1.87 and GPT-5 Mini $0.08.

Which has the bigger context window, Claude Sonnet 5 or GPT-5 Mini?

Claude Sonnet 5, with 1M tokens against 400K.

How many benchmarks is the Claude Sonnet 5 vs GPT-5 Mini comparison based on?

75 benchmarks have a result for both models as of October 22, 2026. Claude Sonnet 5's coding index rests on 6 independent benchmarks and GPT-5 Mini's on 2. Where only one model has a result, the page says so instead of naming a winner.

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