Noometry

Model comparison

Claude 3.5 Haiku vs GPT-5.3 Chat

GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 29.2 on the Noometry Index.

Last verified . 18 shared benchmarks.

Claude 3.5 Haiku Anthropic

29.2

Rank #315 Confirmed

GPT-5.3 Chat OpenAI

42.8

Rank #109 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Claude 3.5 Haiku scores higher in 0 categories and GPT-5.3 Chat in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.3 Chat leads 38.2 to 14.7.

Side by side

Claude 3.5 HaikuGPT-5.3 Chat
ProviderAnthropicOpenAI
Noometry Index29.242.8
Released2024-10-222026-03-03
WeightsProprietaryProprietary
Context window—128K
Max output—16K
Input $ / M tokens—$1.75
Output $ / M tokens—$14
Results tracked4918

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Category by category

Coding GPT-5.3 Chat leads

Claude 3.5 Haiku: 32.9 (#265), GPT-5.3 Chat: 41.4 (#124)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Coding12861408
Aider Polyglot28%—
SciCode27.4%—
WeirdML30.7%—
BigCodeBench Instruct46.1%—
LiveBench Coding51.4%—
BigCodeBench Complete59%—
CadEval32%—

Agentic & Tool Use Not comparable

Claude 3.5 Haiku: 28.0 (#95), GPT-5.3 Chat: —

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
BALROG19.3%—

Reasoning GPT-5.3 Chat leads

Claude 3.5 Haiku: 17.7 (#290), GPT-5.3 Chat: 28.5 (#102)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Hard Prompts12511399
CritPt0%—
LiveBench Reasoning28.1%—
DTBench56.7%—
LiveBench Data Analysis48.5%—
Epoch Capabilities Index127.15—
LiveBench43.5%—

Math GPT-5.3 Chat leads

Claude 3.5 Haiku: 14.7 (#300), GPT-5.3 Chat: 38.2 (#142)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Math12441389
OTIS Mock AIME 2024-20254.3%—
Omni-MATH22.4%—
LiveBench Math35.5%—
MATH Level 546.4%—
FrontierMath (Feb 2025 set)0.3%—

Knowledge GPT-5.3 Chat leads

Claude 3.5 Haiku: 18.7 (#281), GPT-5.3 Chat: 38.8 (#140)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Expert12081397
GPQA Diamond38.1%—
MMLU-Pro60.5%—
Confabulations36.7%—
GPQA (HELM)36.3%—
MMLU74.3%—

Multimodal Not comparable

Claude 3.5 Haiku: 26.8 (#117), GPT-5.3 Chat: —

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Vision1092—
GeoBench34%—

Multilingual GPT-5.3 Chat leads

Claude 3.5 Haiku: 40.0 (#218), GPT-5.3 Chat: 50.3 (#124)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Non-English12381382
LMArena Chinese12291432
LMArena French12641397
LMArena German12371384
LMArena Japanese11751352
LMArena Korean11731346
LMArena Russian12531400
LMArena Spanish12611371

Instruction Following GPT-5.3 Chat leads

Claude 3.5 Haiku: 62.9 (#234), GPT-5.3 Chat: 72.8 (#129)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Instruction Following12411378
LiveBench Instruction Following61.9%—
IFEval79.2%—

Long Context GPT-5.3 Chat leads

Claude 3.5 Haiku: 38.3 (#200), GPT-5.3 Chat: 42.6 (#120)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Longer Query12611396

Writing & Preference GPT-5.3 Chat leads

Claude 3.5 Haiku: 42.7 (#234), GPT-5.3 Chat: 63.1 (#68)

BenchmarkClaude 3.5 HaikuGPT-5.3 Chat
LMArena Text12551389
LMArena Creative Writing12331355
EQ-Bench Creative Writing11461690
LMArena Multi-Turn12651412
Short-Story Creative Writing73.5%—
WildBench76%—
LiveBench Language35.4%—

Frequently asked questions

Is Claude 3.5 Haiku better than GPT-5.3 Chat?

GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 29.2 on the Noometry Index.

Is Claude 3.5 Haiku or GPT-5.3 Chat better for coding?

GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 32.9 in the Noometry coding category.

How many benchmarks do Claude 3.5 Haiku and GPT-5.3 Chat share?

18 benchmarks have published results for both models. Claude 3.5 Haiku has 49 scored results on Noometry and GPT-5.3 Chat has 18.

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