Enter opens the highlighted result. Esc closes.

Claude Sonnet 5 vs GPT-5

Claude Sonnet 5 leads GPT-5 on coding, 57.7 to 38.8 on the Vibe Coding Index, at about the same output price ($10.00 vs $10.00 per million). Updated October 22, 2026; 80 benchmarks have a result for both.

Replace Claude Sonnet 5 Replace GPT-5
Claude Sonnet 5Anthropic
Coding
57.7
Overall
63.2
Output $/M
$10.00
74
GPT-5OpenAI
Coding
38.8
Overall
51.5
Output $/M
$10.00
6
vs boards won of 80 shared

Claude Sonnet 5 or GPT-5: which to pick

Pick Claude Sonnet 5 for coding: it scores 57.7 on the Vibe Coding Index against 38.8 for GPT-5.

Pick GPT-5 for a lower cost per solved task ($0.39 against $1.87) and work measured by LiveCodeBench (Vals AI) or LegalBench (Vals AI), where it leads.

Model AClaude Sonnet 5Anthropic57.7/1006 independent benchmarks$1.87 per solved taskModel BGPT-5OpenAI38.8/1003 independent benchmarks$0.39 per solved task
Shared results
80
Claude Sonnet 5 only
41
GPT-5 only
33
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
Claude Sonnet 5 57.7 from 6 benchmarks, GPT-5 38.8 from 3 benchmarks.
Widest category
Coding, 19.3 points apart on average over 12 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): Claude Sonnet 5 81.3% against GPT-5 20.1%, 61.2 points apart on a 0 to 100 scale.
Output price
Both cost $10.00 per million output tokens.
Context window
Claude Sonnet 5 takes 1M tokens, GPT-5 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-5Ties
Coding111
Intelligence20
Reasoning130
Math60
Knowledge83
Web design80
General262
All shared boards746
CodingLike-for-likeSix of these boards feed the Vibe Coding Index111
Coding benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
Aider polyglotNot measured88.0%Only GPT-5 measured
SWE-bench VerifiedNot measured74.4%Only GPT-5 measured
LiveBench coding74.7%Not measuredOnly Claude Sonnet 5 measured
LMArena WebDev15401418Claude Sonnet 5
AA Coding Index71.537.8Claude Sonnet 5
LiveCodeBench (Vals AI)82.4%85.9%GPT-5
SWE-bench Verified (Vals AI)79.6%69.0%Claude Sonnet 5
Terminal-Bench 4 (Vals AI)10.6%Not measuredOnly Claude Sonnet 5 measured
Vibe Code Bench (Vals AI)81.3%20.1%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 measured84.6%Only GPT-5 measured
SciCode54.3%Not measuredOnly Claude Sonnet 5 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured37.9%Only GPT-5 measured
Terminal-BenchNot measured49.6%Only GPT-5 measured
FrontierCode42.7%Not measuredOnly Claude Sonnet 5 measured
GSO-Bench37.3%6.9%Claude Sonnet 5
WeirdML68.8%60.7%Claude Sonnet 5
ALE-Bench1463.1807.6Claude Sonnet 5
LMArena Text: coding14831436Claude Sonnet 5
LMArena Text: software and IT14741420Claude Sonnet 5
LMArena WebDev: React1541Not measuredOnly Claude Sonnet 5 measured
LMArena WebDev: HTML15271427Claude Sonnet 5
LMArena WebDev: from an image1540Not measuredOnly Claude Sonnet 5 measured
SciCode10.7%0.0%Claude Sonnet 5
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
BenchmarkClaude Sonnet 5GPT-5Leader
AA Intelligence Index38.223.0Claude Sonnet 5
Epoch Capabilities Index156.9150.0Claude Sonnet 5
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index28 boards, none shared
Agentic work benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
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 measured86.5%Only GPT-5 measured
APEX-Agents54.5%Not measuredOnly Claude Sonnet 5 measured
METR time horizonsNot measured69.6%Only GPT-5 measured
Remote Labor IndexNot measured1.7%Only GPT-5 measured
GDPvalNot measured34.8%Only GPT-5 measured
BALROGNot measured32.8%Only GPT-5 measured
DeepResearch BenchNot measured49.6%Only GPT-5 measured
Vending-Bench 2$6,378Not measuredOnly Claude Sonnet 5 measured
BrowseComp-PlusNot measured80.0%Only GPT-5 measured
Neither model has a result on the other 13 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index130
Reasoning benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
GPQA Diamond88.9%85.6%Claude Sonnet 5
LiveBench reasoning88.7%Not measuredOnly Claude Sonnet 5 measured
MMMU Pro (Vals AI)83.0%81.5%Claude Sonnet 5
GPQA Diamond (Artificial Analysis run)91.1%85.4%Claude Sonnet 5
Humanity's Last Exam (Artificial Analysis run)41.3%28.5%Claude Sonnet 5
GPQA Diamond (Epoch AI run)90.5%86.2%Claude Sonnet 5
ARC-AGINot measured65.7%Only GPT-5 measured
ARC-AGI-2Not measured9.9%Only GPT-5 measured
SimpleBench60.6%56.7%Claude Sonnet 5
Chess puzzles45.0%36.0%Claude Sonnet 5
Mystery game puzzles35.0%23.0%Claude Sonnet 5
EBR-benchNot measured12.7%Only GPT-5 measured
VPCTNot measured66.0%Only GPT-5 measured
LMArena Text: hard prompts14611415Claude Sonnet 5
LMArena Text: expert14891419Claude Sonnet 5
LMArena Text: hard prompts in English14641419Claude Sonnet 5
LMArena Vision: diagrams12931252Claude Sonnet 5
LMArena Vision: homework13111278Claude Sonnet 5
Kagi LLM BenchmarkNot measured72.7%Only GPT-5 measured
Neither model has a result on the other 3 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
AIMENot measured93.4%Only GPT-5 measured
MATH 500 (Vals AI)Not measured96.0%Only GPT-5 measured
MGSM (Vals AI)Not measured92.8%Only GPT-5 measured
AA Math IndexNot measured94.3Only GPT-5 measured
AIME 2025 (Artificial Analysis run)Not measured94.3%Only GPT-5 measured
OTIS Mock AIME94.7%91.4%Claude Sonnet 5
FrontierMath, tiers 1 to 365.6%55.4%Claude Sonnet 5
FrontierMath, tier 429.3%22.0%Claude Sonnet 5
ProofBench77.0%18.0%Claude Sonnet 5
MATH level 5Not measured98.1%Only GPT-5 measured
LMArena Text: math14671407Claude Sonnet 5
LMArena Text: mathematical work14811405Claude Sonnet 5
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index83
Knowledge benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
MMLU Pro87.5%86.5%Claude Sonnet 5
LegalBench (Vals AI)83.9%86.0%GPT-5
CaseLaw (Vals AI)Not measured66.5%Only GPT-5 measured
CorpFin (Vals AI)67.0%61.1%Claude Sonnet 5
TaxEval (Vals AI)75.6%73.4%Claude Sonnet 5
MortgageTax (Vals AI)70.0%65.5%Claude Sonnet 5
MedQA (Vals AI)Not measured96.3%Only GPT-5 measured
MedCode (Vals AI)47.5%49.6%GPT-5
MMLU Pro (Artificial Analysis run)Not measured87.1%Only GPT-5 measured
SimpleQA Verified33.7%50.1%GPT-5
GeoBenchNot measured81.0%Only GPT-5 measured
LMArena Text: science14601416Claude Sonnet 5
LMArena Text: medicine and healthcare14421413Claude Sonnet 5
LMArena Text: legal and government14541431Claude Sonnet 5
LMArena Text: business and finance14361400Claude Sonnet 5
FACTS Benchmark SuiteNot measured56.5%Only GPT-5 measured
Neither model has a result on the other 2 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
BenchmarkClaude Sonnet 5GPT-5Leader
Design Arena: websites12741184Claude Sonnet 5
Design Arena: UI components12771177Claude Sonnet 5
Design Arena: game dev12771185Claude Sonnet 5
Design Arena: data viz12511221Claude Sonnet 5
Design Arena: 3D12611055Claude Sonnet 5
Design Arena: all code categories12751167Claude Sonnet 5
Design Arena: SVG11921188Claude Sonnet 5
Design Arena: ASCII art12071141Claude Sonnet 5
LiveBench design82.0%Not measuredOnly Claude Sonnet 5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index262
General benchmarks for Claude Sonnet 5 and GPT-5
BenchmarkClaude Sonnet 5GPT-5Leader
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%43.7%Claude Sonnet 5
MedScribe (Vals AI)76.0%83.7%GPT-5
Vals Multimodal Index68.8%Not measuredOnly Claude Sonnet 5 measured
IFBenchNot measured73.1%Only GPT-5 measured
Long context reasoning (AA-LCR)82.0%78.2%Claude Sonnet 5
DTBench92.5%90.7%Claude Sonnet 5
LMCA50.0%40.0%Claude Sonnet 5
Fiction.LiveBenchNot measured97.2%Only GPT-5 measured
Creative writing (Lech Mazur)Not measured86.0%Only GPT-5 measured
Surface Evolver Bench60.0%Not measuredOnly Claude Sonnet 5 measured
LMArena Text14421406Claude Sonnet 5
LMArena Text: instruction following14521388Claude Sonnet 5
LMArena Text: creative writing14161365Claude Sonnet 5
LMArena Vision12731232Claude Sonnet 5
LMArena Text: English14501409Claude Sonnet 5
LMArena Text: non-English14311397Claude Sonnet 5
LMArena Text: Chinese14781422Claude Sonnet 5
LMArena Text: German14421416Claude Sonnet 5
LMArena Text: Japanese14221409Claude Sonnet 5
LMArena Text: Korean14121360Claude Sonnet 5
LMArena Text: French14631409Claude Sonnet 5
LMArena Text: Spanish14381399Claude Sonnet 5
LMArena Text: Russian14501407Claude Sonnet 5
LMArena Text: Polish14251431GPT-5
LMArena Text: multi-turn14531426Claude Sonnet 5
LMArena Text: longer queries14621399Claude Sonnet 5
LMArena Text: writing and language14361384Claude Sonnet 5
LMArena Text: entertainment and media14111379Claude Sonnet 5
LMArena Vision: English12751231Claude Sonnet 5
LMArena Vision: Chinese13311267Claude Sonnet 5
LMArena Vision: reading text12881246Claude Sonnet 5
LMArena Vision: humor12611219Claude Sonnet 5
LMArena Vision: captioningNot measured1212Only GPT-5 measured
LMArena Vision: recognizing thingsNot measured1263Only GPT-5 measured
LMArena Vision: creative writing12461210Claude 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
BenchmarkClaude Sonnet 5GPT-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

Claude Sonnet 5$0.0070Fits in one request
GPT-5$0.0063Fits in one request

GPT-5 costs less

Repository review

50K input + 3K output tokens

Claude Sonnet 5$0.130Fits in one request
GPT-5$0.092Fits in one request

GPT-5 costs less

Agent loop

200K input + 10K output tokens

Claude Sonnet 5$0.500Fits in one request
GPT-5$0.350Fits in one request

GPT-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 Sonnet 5 and GPT-5
SpecificationAnthropic Claude Sonnet 5OpenAI GPT-5
MakerAnthropicOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedJune 30, 2026August 7, 2025
Context window1M400K
Input $/Mtok$2.00$1.25
Output $/Mtok$10.00$10.00
Coding index57.738.8
Independent measurements behind it63
Cost per solved task$1.87$0.39
SourceOpenRouter listingOpenRouter listing

Questions

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

Pick Claude Sonnet 5 for coding: it scores 57.7 on the Vibe Coding Index against 38.8 for GPT-5. Pick GPT-5 for a lower cost per solved task ($0.39 against $1.87) and work measured by LiveCodeBench (Vals AI) or LegalBench (Vals AI), where it leads.

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

Claude Sonnet 5 costs $2.00 per million input tokens and $10.00 per million output tokens; GPT-5 costs $1.25 and $10.00. Per solved SWE-bench Verified task, Claude Sonnet 5 costs $1.87 and GPT-5 $0.39.

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

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

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

80 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's on 3. Where only one model has a result, the page says so instead of naming a winner.

Compare next

Embed this comparison on your site

Free under CC BY 4.0, while the source link stays visible. Preview the frame · Terms and other embeds

<iframe src="https://llmbenchmark.ai/embed/compare/claude-sonnet-5-vs-gpt-5" title="Claude Sonnet 5 vs GPT-5, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/claude-sonnet-5-vs-gpt-5">LLMBenchmark.ai, Claude Sonnet 5 vs GPT-5</a></p>