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Claude Haiku 4.5 vs GPT-4 Turbo

Claude Haiku 4.5 leads GPT-4 Turbo on the Artificial Analysis Intelligence Index, 16.9 to 7.0, and Claude Haiku 4.5 costs 6.0x less per output token ($5.00 vs $30.00 per million). Updated October 22, 2026; 35 benchmarks have a result for both.

Replace Claude Haiku 4.5 Replace GPT-4 Turbo
Claude Haiku 4.5Anthropic
Coding
35.6
Overall
41.0
Output $/M
$5.00
34
GPT-4 TurboOpenAI
Coding
No data
Overall
No data
Output $/M
$30.00
1
vs boards won of 35 shared

Claude Haiku 4.5 or GPT-4 Turbo: which to pick

Only Claude Haiku 4.5 has a coding score, 35.6 on the Vibe Coding Index; GPT-4 Turbo has none, so the two cannot be ranked on coding.

Pick GPT-4 Turbo for work measured by MedQA (Vals AI), where it leads.

Model AClaude Haiku 4.5Anthropic35.6/1004 independent benchmarks$0.56 per solved taskModel BGPT-4 TurboOpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
35
Claude Haiku 4.5 only
63
GPT-4 Turbo only
7
Like-for-like categories
6 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, GPT-4 Turbo not benchmarked.
Widest category
Reasoning, 31.0 points apart on average over 3 shared benchmarks.
Widest single gap
LMArena Text: expert: Claude Haiku 4.5 1443 against GPT-4 Turbo 1223, 36.7 points apart on a 0 to 100 scale.
Output price
Claude Haiku 4.5 $5.00 against GPT-4 Turbo $30.00 per million output tokens, 6.0x apart.
Context window
Claude Haiku 4.5 takes 200K tokens, GPT-4 Turbo 128K.

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 4.5BarsGPT-4 TurboTies
Coding30
Intelligence20
Reasoning30
Math20
Knowledge51
General190
All shared boards341
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
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%Not measuredOnly Claude Haiku 4.5 measured
LMArena WebDev1330Not measuredOnly Claude Haiku 4.5 measured
AA Coding Index43.921.5Claude Haiku 4.5
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
Vibe Code Bench (Vals AI)11.4%Not measuredOnly Claude Haiku 4.5 measured
Code migration (Vals AI)7.5%Not measuredOnly Claude Haiku 4.5 measured
ProgramBench (Vals AI)0.0%Not measuredOnly Claude Haiku 4.5 measured
Terminal-Bench 2.1 (Vals AI)43.8%Not measuredOnly Claude Haiku 4.5 measured
LiveCodeBench (Artificial Analysis run)Not measured29.1%Only GPT-4 Turbo measured
Terminal-Bench35.5%Not measuredOnly Claude Haiku 4.5 measured
WeirdML45.4%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: coding14541268Claude Haiku 4.5
LMArena Text: software and IT14391267Claude Haiku 4.5
LMArena WebDev: React1326Not measuredOnly Claude Haiku 4.5 measured
LMArena WebDev: HTML1318Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 25 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
AA Intelligence Index16.97.0Claude Haiku 4.5
Epoch Capabilities Index142.2127.3Claude Haiku 4.5
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index13 boards, none shared
Agentic work benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
AA Agentic Index8.0Not measuredOnly Claude Haiku 4.5 measured
LiveBench research42.2%Not measuredOnly Claude Haiku 4.5 measured
LiveBench browser40.0%Not measuredOnly Claude Haiku 4.5 measured
LiveBench long agentic11.1%Not measuredOnly Claude Haiku 4.5 measured
Finance Agent (Vals AI)31.0%Not measuredOnly Claude Haiku 4.5 measured
Tax Agent Bench (Vals AI)5.9%Not measuredOnly Claude Haiku 4.5 measured
Legal Research Bench (Vals AI)10.6%Not measuredOnly Claude Haiku 4.5 measured
Excel Modeling Benchmark (Vals AI)22.7%Not measuredOnly Claude Haiku 4.5 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
MCP Atlas40.2%Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 29 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index30
Reasoning benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
GPQA Diamond72.2%Not measuredOnly Claude Haiku 4.5 measured
LiveBench reasoning61.7%Not measuredOnly Claude Haiku 4.5 measured
MMMU Pro (Vals AI)46.1%Not measuredOnly Claude Haiku 4.5 measured
Humanity's Last Exam (Artificial Analysis run)Not measured3.1%Only GPT-4 Turbo measured
GPQA Diamond (Epoch AI run)71.2%Not measuredOnly Claude Haiku 4.5 measured
ARC-AGI47.7%Not measuredOnly Claude Haiku 4.5 measured
ARC-AGI-24.0%Not measuredOnly Claude Haiku 4.5 measured
Chess puzzles8.0%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: hard prompts14211251Claude Haiku 4.5
LMArena Text: expert14431223Claude Haiku 4.5
LMArena Text: hard prompts in English14351266Claude Haiku 4.5
Neither model has a result on the other 12 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
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%Not measuredOnly Claude Haiku 4.5 measured
MATH level 596.4%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: math13981272Claude Haiku 4.5
LMArena Text: mathematical work14301268Claude Haiku 4.5
Neither model has a result on the other 8 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index51
Knowledge benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
MMLU Pro78.7%Not measuredOnly Claude Haiku 4.5 measured
LegalBench (Vals AI)81.2%80.5%Claude Haiku 4.5
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%82.0%GPT-4 Turbo
MedCode (Vals AI)32.7%Not measuredOnly Claude Haiku 4.5 measured
MMLU Pro (Artificial Analysis run)Not measured69.4%Only GPT-4 Turbo measured
SimpleQA Verified13.2%Not measuredOnly Claude Haiku 4.5 measured
MMLUNot measured81.3%Only GPT-4 Turbo measured
LMArena Text: science14061256Claude Haiku 4.5
LMArena Text: medicine and healthcare13941239Claude Haiku 4.5
LMArena Text: legal and government14001265Claude Haiku 4.5
LMArena Text: business and finance14001222Claude Haiku 4.5
Neither model has a result on the other 5 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Web design benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
Design Arena: websites1122Not measuredOnly Claude Haiku 4.5 measured
Design Arena: UI components1097Not measuredOnly Claude Haiku 4.5 measured
Design Arena: game dev1096Not measuredOnly Claude Haiku 4.5 measured
Design Arena: data viz1124Not measuredOnly Claude Haiku 4.5 measured
Design Arena: 3D1071Not measuredOnly Claude Haiku 4.5 measured
Design Arena: all code categories1114Not measuredOnly Claude Haiku 4.5 measured
Design Arena: SVG1025Not measuredOnly Claude Haiku 4.5 measured
Design Arena: ASCII art1140Not measuredOnly Claude Haiku 4.5 measured
LiveBench design59.9%Not measuredOnly Claude Haiku 4.5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index190
General benchmarks for Claude Haiku 4.5 and GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
LiveBench data analysis59.3%Not measuredOnly Claude Haiku 4.5 measured
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%Not measuredOnly Claude Haiku 4.5 measured
Vals Multimodal Index42.9%Not measuredOnly Claude Haiku 4.5 measured
DTBench73.6%61.6%Claude Haiku 4.5
LMCA30.9%9.8%Claude Haiku 4.5
ExploitBench13.7%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text13971272Claude Haiku 4.5
LMArena Text: instruction following14141249Claude Haiku 4.5
LMArena Text: creative writing13711268Claude Haiku 4.5
LMArena VisionNot measured1090Only GPT-4 Turbo measured
LMArena Text: English14141291Claude Haiku 4.5
LMArena Text: non-English13771245Claude Haiku 4.5
LMArena Text: Chinese14181242Claude Haiku 4.5
LMArena Text: German13741259Claude Haiku 4.5
LMArena Text: Japanese13381194Claude Haiku 4.5
LMArena Text: Korean13461187Claude Haiku 4.5
LMArena Text: French14111276Claude Haiku 4.5
LMArena Text: Spanish14211260Claude Haiku 4.5
LMArena Text: Russian13811259Claude Haiku 4.5
LMArena Text: Polish13431302Claude Haiku 4.5
LMArena Text: multi-turn14091267Claude Haiku 4.5
LMArena Text: longer queries14271254Claude Haiku 4.5
LMArena Text: writing and language13861279Claude Haiku 4.5
LMArena Text: entertainment and media13691258Claude Haiku 4.5
LMArena Vision: EnglishNot measured1097Only GPT-4 Turbo measured
LMArena Vision: ChineseNot measured1045Only GPT-4 Turbo measured
LMArena Document1420Not measuredOnly Claude Haiku 4.5 measured
MultiChallenge50.5%Not measuredOnly Claude Haiku 4.5 measured
EQ-Bench 41064Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 17 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 GPT-4 Turbo
BenchmarkClaude Haiku 4.5GPT-4 TurboLeader
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
GPT-4 Turbo$0.025Fits in one request

Claude Haiku 4.5 costs less

Repository review

50K input + 3K output tokens

Claude Haiku 4.5$0.065Fits in one request
GPT-4 Turbo$0.590Fits 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
GPT-4 Turbo$2.30Exceeds the context window

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 GPT-4 Turbo
SpecificationAnthropic Claude Haiku 4.5OpenAI GPT-4 Turbo
MakerAnthropicOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 15, 2025April 9, 2024
Context window200K128K
Input $/Mtok$1.00$10.00
Output $/Mtok$5.00$30.00
Coding index35.6Not benchmarked
Independent measurements behind it40
Cost per solved task$0.56Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Haiku 4.5 better than GPT-4 Turbo for coding?

Only Claude Haiku 4.5 has a coding score, 35.6 on the Vibe Coding Index; GPT-4 Turbo has none, so the two cannot be ranked on coding. Pick GPT-4 Turbo for work measured by MedQA (Vals AI), where it leads.

Which is cheaper, Claude Haiku 4.5 or GPT-4 Turbo?

Claude Haiku 4.5 costs $1.00 per million input tokens and $5.00 per million output tokens; GPT-4 Turbo costs $10.00 and $30.00. Cost per solved task is known for Claude Haiku 4.5 only.

Which has the bigger context window, Claude Haiku 4.5 or GPT-4 Turbo?

Claude Haiku 4.5, with 200K tokens against 128K.

How many benchmarks is the Claude Haiku 4.5 vs GPT-4 Turbo comparison based on?

35 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 GPT-4 Turbo's on 0. Where only one model has a result, the page says so instead of naming a winner.

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