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Claude Haiku 5.5 vs GPT-4 Turbo

Claude Haiku 5.5 leads GPT-4 Turbo on the Artificial Analysis Intelligence Index, 43.4 to 7.0, and Claude Haiku 5.5 costs 60.0x less per output token ($0.50 vs $30.00 per million). Updated October 22, 2026; 5 benchmarks have a result for both.

Claude Haiku 5.5Anthropic
Coding
70.7
Overall
67.6
Output $/M
$0.50
5
GPT-4 TurboOpenAI
Coding
No data
Overall
No data
Output $/M
$30.00
0
vs boards won of 5 shared

Claude Haiku 5.5 or GPT-4 Turbo: which to pick

Only Claude Haiku 5.5 has a coding score, 70.7 on the Vibe Coding Index; GPT-4 Turbo has none, so the two cannot be ranked on coding.

Compare them on price, context and the boards below.

Shared results
5
Claude Haiku 5.5 only
60
GPT-4 Turbo only
37
Like-for-like categories
3 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 5.5 70.7 from 5 benchmarks, GPT-4 Turbo not benchmarked.
Widest category
Reasoning, 41.3 points apart on average over 1 shared benchmark.
Widest single gap
Humanity's Last Exam (Artificial Analysis run): Claude Haiku 5.5 44.4% against GPT-4 Turbo 3.1%, 41.3 points apart on a 0 to 100 scale.
Output price
Claude Haiku 5.5 $0.50 against GPT-4 Turbo $30.00 per million output tokens, 60.0x apart.
Context window
Claude Haiku 5.5 takes 1M 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 5.5BarsGPT-4 TurboTies
Intelligence20
Reasoning10
General20
All shared boards50
CodingDirectional onlySix of these boards feed the Vibe Coding Index21 boards, none shared
Coding benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
LiveBench coding91.4%Not measuredOnly Claude Haiku 5.5 measured
LMArena WebDev1586Not measuredOnly Claude Haiku 5.5 measured
AA Coding IndexNot measured21.5Only GPT-4 Turbo measured
Terminal-Bench 4 (Vals AI)36.4%Not measuredOnly Claude Haiku 5.5 measured
Vibe Code Bench (Vals AI)90.4%Not measuredOnly Claude Haiku 5.5 measured
Code migration (Vals AI)44.6%Not measuredOnly Claude Haiku 5.5 measured
ProgramBench (Vals AI)2.5%Not measuredOnly Claude Haiku 5.5 measured
IOI (Vals AI)47.3%Not measuredOnly Claude Haiku 5.5 measured
SWE-bench Multimodal (Vals AI)44.0%Not measuredOnly Claude Haiku 5.5 measured
Vibe Code Bench 1-100 (Vals AI)20.4%Not measuredOnly Claude Haiku 5.5 measured
CyberBench (Vals AI)75.5%Not measuredOnly Claude Haiku 5.5 measured
LiveCodeBench (Artificial Analysis run)Not measured29.1%Only GPT-4 Turbo measured
SciCode55.0%Not measuredOnly Claude Haiku 5.5 measured
FrontierCode46.4%Not measuredOnly Claude Haiku 5.5 measured
FrontierSWE43.8%Not measuredOnly Claude Haiku 5.5 measured
LMArena Text: codingNot measured1268Only GPT-4 Turbo measured
LMArena Text: software and ITNot measured1267Only GPT-4 Turbo measured
LMArena WebDev: React1605Not measuredOnly Claude Haiku 5.5 measured
LMArena WebDev: HTML1569Not measuredOnly Claude Haiku 5.5 measured
SciCode9.2%Not measuredOnly Claude Haiku 5.5 measured
SWE-Bench Pro V287.2%Not measuredOnly Claude Haiku 5.5 measured
Neither model has a result on the other 22 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
AA Intelligence Index43.47.0Claude Haiku 5.5
Epoch Capabilities Index159.3127.3Claude Haiku 5.5
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index14 boards, none shared
Agentic work benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
LiveBench research81.9%Not measuredOnly Claude Haiku 5.5 measured
LiveBench browser80.0%Not measuredOnly Claude Haiku 5.5 measured
LiveBench long agentic57.6%Not measuredOnly Claude Haiku 5.5 measured
SREBench (Vals AI)5.7%Not measuredOnly Claude Haiku 5.5 measured
Finance Agent (Vals AI)54.1%Not measuredOnly Claude Haiku 5.5 measured
Tax Agent Bench (Vals AI)31.9%Not measuredOnly Claude Haiku 5.5 measured
Legal Research Bench (Vals AI)43.3%Not measuredOnly Claude Haiku 5.5 measured
Harvey's Legal Agent Benchmark (Vals AI)4.2%Not measuredOnly Claude Haiku 5.5 measured
Excel Modeling Benchmark (Vals AI)59.0%Not measuredOnly Claude Haiku 5.5 measured
BioMysteryBench (Vals AI)70.4%Not measuredOnly Claude Haiku 5.5 measured
Terminal-Bench-Science (Vals AI)10.0%Not measuredOnly Claude Haiku 5.5 measured
Vals Science Index38.5%Not measuredOnly Claude Haiku 5.5 measured
APEX-Agents56.1%Not measuredOnly Claude Haiku 5.5 measured
Vending-Bench 2$3,602Not measuredOnly Claude Haiku 5.5 measured
Neither model has a result on the other 28 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index10
Reasoning benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
LiveBench reasoning82.4%Not measuredOnly Claude Haiku 5.5 measured
MysteryMechanism (Vals AI)35.1%Not measuredOnly Claude Haiku 5.5 measured
Humanity's Last Exam (Artificial Analysis run)44.4%3.1%Claude Haiku 5.5
GPQA Diamond (Epoch AI run)89.6%Not measuredOnly Claude Haiku 5.5 measured
ARC-AGI89.0%Not measuredOnly Claude Haiku 5.5 measured
ARC-AGI-261.3%Not measuredOnly Claude Haiku 5.5 measured
Chess puzzles55.0%Not measuredOnly Claude Haiku 5.5 measured
Mystery game puzzles30.0%Not measuredOnly Claude Haiku 5.5 measured
EBR-bench43.8%Not measuredOnly Claude Haiku 5.5 measured
LMArena Text: hard promptsNot measured1251Only GPT-4 Turbo measured
LMArena Text: expertNot measured1223Only GPT-4 Turbo measured
LMArena Text: hard prompts in EnglishNot measured1266Only GPT-4 Turbo measured
Neither model has a result on the other 11 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Math benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
OTIS Mock AIME98.9%Not measuredOnly Claude Haiku 5.5 measured
FrontierMath, tiers 1 to 375.1%Not measuredOnly Claude Haiku 5.5 measured
FrontierMath, tier 446.3%Not measuredOnly Claude Haiku 5.5 measured
ProofBench89.0%Not measuredOnly Claude Haiku 5.5 measured
LMArena Text: mathNot measured1272Only GPT-4 Turbo measured
LMArena Text: mathematical workNot measured1268Only GPT-4 Turbo measured
Neither model has a result on the other 8 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index10 boards, none shared
Knowledge benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
LegalBench (Vals AI)Not measured80.5%Only GPT-4 Turbo measured
MedQA (Vals AI)Not measured82.0%Only GPT-4 Turbo measured
MedCode (Vals AI)51.5%Not measuredOnly Claude Haiku 5.5 measured
MMLU Pro (Artificial Analysis run)Not measured69.4%Only GPT-4 Turbo measured
SimpleQA Verified23.8%Not measuredOnly Claude Haiku 5.5 measured
MMLUNot measured81.3%Only GPT-4 Turbo measured
LMArena Text: scienceNot measured1256Only GPT-4 Turbo measured
LMArena Text: medicine and healthcareNot measured1239Only GPT-4 Turbo measured
LMArena Text: legal and governmentNot measured1265Only GPT-4 Turbo measured
LMArena Text: business and financeNot measured1222Only GPT-4 Turbo measured
Neither model has a result on the other 10 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Web design benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
Design Arena: websites1262Not measuredOnly Claude Haiku 5.5 measured
Design Arena: UI components1283Not measuredOnly Claude Haiku 5.5 measured
Design Arena: game dev1315Not measuredOnly Claude Haiku 5.5 measured
Design Arena: data viz1297Not measuredOnly Claude Haiku 5.5 measured
Design Arena: 3D1342Not measuredOnly Claude Haiku 5.5 measured
Design Arena: all code categories1278Not measuredOnly Claude Haiku 5.5 measured
LiveBench design83.1%Not measuredOnly Claude Haiku 5.5 measured
Neither model has a result on the other 2 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index20
General benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-4 TurboLeader
Vals Index58.7%Not measuredOnly Claude Haiku 5.5 measured
LiveBench data analysis53.1%Not measuredOnly Claude Haiku 5.5 measured
Public Benefits Bench (Vals AI)63.2%Not measuredOnly Claude Haiku 5.5 measured
SAGE (Vals AI)45.8%Not measuredOnly Claude Haiku 5.5 measured
MedScribe (Vals AI)89.5%Not measuredOnly Claude Haiku 5.5 measured
Long context reasoning (AA-LCR)82.7%Not measuredOnly Claude Haiku 5.5 measured
DTBench95.0%61.6%Claude Haiku 5.5
LMCA51.1%9.8%Claude Haiku 5.5
Furniture assembly47.5%Not measuredOnly Claude Haiku 5.5 measured
LMArena TextNot measured1272Only GPT-4 Turbo measured
LMArena Text: instruction followingNot measured1249Only GPT-4 Turbo measured
LMArena Text: creative writingNot measured1268Only GPT-4 Turbo measured
LMArena VisionNot measured1090Only GPT-4 Turbo measured
LMArena Text: EnglishNot measured1291Only GPT-4 Turbo measured
LMArena Text: non-EnglishNot measured1245Only GPT-4 Turbo measured
LMArena Text: ChineseNot measured1242Only GPT-4 Turbo measured
LMArena Text: GermanNot measured1259Only GPT-4 Turbo measured
LMArena Text: JapaneseNot measured1194Only GPT-4 Turbo measured
LMArena Text: KoreanNot measured1187Only GPT-4 Turbo measured
LMArena Text: FrenchNot measured1276Only GPT-4 Turbo measured
LMArena Text: SpanishNot measured1260Only GPT-4 Turbo measured
LMArena Text: RussianNot measured1259Only GPT-4 Turbo measured
LMArena Text: PolishNot measured1302Only GPT-4 Turbo measured
LMArena Text: multi-turnNot measured1267Only GPT-4 Turbo measured
LMArena Text: longer queriesNot measured1254Only GPT-4 Turbo measured
LMArena Text: writing and languageNot measured1279Only GPT-4 Turbo measured
LMArena Text: entertainment and mediaNot measured1258Only GPT-4 Turbo measured
LMArena Vision: EnglishNot measured1097Only GPT-4 Turbo measured
LMArena Vision: ChineseNot measured1045Only GPT-4 Turbo measured
MultiChallenge67.7%Not measuredOnly Claude Haiku 5.5 measured
Neither model has a result on the other 18 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Haiku 5.5 and GPT-4 Turbo
BenchmarkClaude Haiku 5.5GPT-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 5.5$0.0003Fits in one request
GPT-4 Turbo$0.025Fits in one request

Claude Haiku 5.5 costs less

Repository review

50K input + 3K output tokens

Claude Haiku 5.5$0.0065Fits in one request
GPT-4 Turbo$0.590Fits in one request

Claude Haiku 5.5 costs less

Agent loop

200K input + 10K output tokens

Claude Haiku 5.5$0.025Fits in one request
GPT-4 Turbo$2.30Exceeds the context window

Claude Haiku 5.5 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 5.5 and GPT-4 Turbo
SpecificationAnthropic Claude Haiku 5.5OpenAI GPT-4 Turbo
MakerAnthropicOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 7, 2026April 9, 2024
Context window1M128K
Input $/Mtok$0.10$10.00
Output $/Mtok$0.50$30.00
Coding index70.7Not benchmarked
Independent measurements behind it50
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Haiku 5.5 better than GPT-4 Turbo for coding?

Only Claude Haiku 5.5 has a coding score, 70.7 on the Vibe Coding Index; GPT-4 Turbo has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.

Which is cheaper, Claude Haiku 5.5 or GPT-4 Turbo?

Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens; GPT-4 Turbo costs $10.00 and $30.00. Cost per solved task is known for neither of them.

Which has the bigger context window, Claude Haiku 5.5 or GPT-4 Turbo?

Claude Haiku 5.5, with 1M tokens against 128K.

How many benchmarks is the Claude Haiku 5.5 vs GPT-4 Turbo comparison based on?

5 benchmarks have a result for both models as of October 22, 2026. Claude Haiku 5.5's coding index rests on 5 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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