Noometry

Model comparison

Gemini 2.0 Pro vs GPT-5.5 Instant

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 38.6 on the Noometry Index.

Last verified . 2 shared benchmarks.

Gemini 2.0 Pro Google

38.6

Rank #171 Confirmed

GPT-5.5 Instant OpenAI

42.5

Rank #99 Confirmed

Summary

  • They share 2 benchmarks with published results for both. Gemini 2.0 Pro scores higher in 2 categories and GPT-5.5 Instant in 5 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in long context, where GPT-5.5 Instant leads 43.4 to 29.1.
  • The biggest single-benchmark swing is GPQA Diamond: 65.7% for Gemini 2.0 Pro and 82.5% for GPT-5.5 Instant.

Side by side

Gemini 2.0 ProGPT-5.5 Instant
ProviderGoogleOpenAI
Noometry Index38.642.5
Released2025-02-052026-05-05
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked1427

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Category by category

Coding GPT-5.5 Instant leads

Gemini 2.0 Pro: 37.4 (#182), GPT-5.5 Instant: 43.7 (#73)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
Aider Polyglot35.6%—
SciCode—48.6%
LiveBench Coding63.5%—
LMArena Coding—1433

Reasoning GPT-5.5 Instant leads

Gemini 2.0 Pro: 21.6 (#194), GPT-5.5 Instant: 24.2 (#149)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
Epoch Capabilities Index135.06142.48
CritPt—0%
Chess Puzzles—12%
EnigmaEval0.7%—
LiveBench Reasoning60.1%—
LMArena Hard Prompts—1426
LiveBench Data Analysis68%—
LiveBench65.1%—

Math Gemini 2.0 Pro leads

Gemini 2.0 Pro: 37.1 (#101), GPT-5.5 Instant: 26.1 (#241)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
FrontierMath (Tiers 1-3)—26.3%
FrontierMath Tier 4—2.4%
OTIS Mock AIME 2024-2025—68.1%
LiveBench Math71%—
LMArena Math—1420
MATH Level 583.5%—

Knowledge GPT-5.5 Instant leads

Gemini 2.0 Pro: 36.5 (#156), GPT-5.5 Instant: 48.9 (#68)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
GPQA Diamond65.7%82.5%
Confabulations18.4%—
LMArena Expert—1409

Multimodal Not comparable

Gemini 2.0 Pro: —, GPT-5.5 Instant: 39.3 (#48)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
LMArena Vision—1250
LMArena Document—1403

Multilingual Not comparable

Gemini 2.0 Pro: —, GPT-5.5 Instant: 53.0 (#76)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
LMArena Non-English—1417
LMArena Chinese—1457
LMArena French—1428
LMArena German—1410
LMArena Japanese—1408
LMArena Korean—1393
LMArena Russian—1430
LMArena Spanish—1430

Instruction Following Gemini 2.0 Pro leads

Gemini 2.0 Pro: 75.6 (#57), GPT-5.5 Instant: 74.4 (#94)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
LiveBench Instruction Following83.4%—
LMArena Instruction Following—1407

Long Context GPT-5.5 Instant leads

Gemini 2.0 Pro: 29.1 (#287), GPT-5.5 Instant: 43.4 (#92)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
Fiction.LiveBench41.7%—
LMArena Longer Query—1422

Writing & Preference GPT-5.5 Instant leads

Gemini 2.0 Pro: 52.7 (#164), GPT-5.5 Instant: 62.0 (#81)

BenchmarkGemini 2.0 ProGPT-5.5 Instant
LMArena Text—1419
LMArena Creative Writing—1420
LMArena Multi-Turn—1434
LiveBench Language44.9%—

Frequently asked questions

Is Gemini 2.0 Pro better than GPT-5.5 Instant?

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 38.6 on the Noometry Index.

Is Gemini 2.0 Pro or GPT-5.5 Instant better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 43.7 versus 37.4 in the Noometry coding category.

How many benchmarks do Gemini 2.0 Pro and GPT-5.5 Instant share?

2 benchmarks have published results for both models. Gemini 2.0 Pro has 14 scored results on Noometry and GPT-5.5 Instant has 27.

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