Noometry

Model comparison

Gemini 2.0 Flash-Lite vs GPT-5.5 Instant

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 37.3 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 2.0 Flash-Lite Google

37.3

Rank #189 Confirmed

GPT-5.5 Instant OpenAI

42.5

Rank #99 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 2.0 Flash-Lite scores higher in 1 category and GPT-5.5 Instant in 8 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.5 Instant leads 48.9 to 34.6.

Side by side

Gemini 2.0 Flash-LiteGPT-5.5 Instant
ProviderGoogleOpenAI
Noometry Index37.342.5
Released2025-02-052026-05-05
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked3227

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 37.4 (#181), GPT-5.5 Instant: 43.7 (#73)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Coding13221433
SciCode—48.6%
LiveBench Coding47.1%—

Reasoning GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 21.2 (#203), GPT-5.5 Instant: 24.2 (#149)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Hard Prompts13241426
CritPt—0%
Chess Puzzles—12%
LiveBench Reasoning50.1%—
DTBench52.5%—
LiveBench Data Analysis65.5%—
Epoch Capabilities Index—142.48
ForecastBench57.1—
LiveBench54.3%—

Math Gemini 2.0 Flash-Lite leads

Gemini 2.0 Flash-Lite: 31.8 (#192), GPT-5.5 Instant: 26.1 (#241)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Math13091420
FrontierMath (Tiers 1-3)—26.3%
FrontierMath Tier 4—2.4%
OTIS Mock AIME 2024-2025—68.1%
Omni-MATH37.4%—
LiveBench Math58.1%—

Knowledge GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 34.6 (#185), GPT-5.5 Instant: 48.9 (#68)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Expert13051409
GPQA Diamond—82.5%
MMLU-Pro72%—
GPQA (HELM)50%—

Multimodal GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 30.6 (#103), GPT-5.5 Instant: 39.3 (#48)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Vision11001250
LMArena Document—1403

Multilingual GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 46.2 (#156), GPT-5.5 Instant: 53.0 (#76)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Non-English13231417
LMArena Chinese13391457
LMArena French13461428
LMArena German13061410
LMArena Japanese13021408
LMArena Korean13251393
LMArena Russian13281430
LMArena Spanish13131430

Instruction Following GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 70.6 (#158), GPT-5.5 Instant: 74.4 (#94)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Instruction Following13051407
LiveBench Instruction Following78.3%—
IFEval82.4%—

Long Context GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 40.1 (#155), GPT-5.5 Instant: 43.4 (#92)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Longer Query13211422

Writing & Preference GPT-5.5 Instant leads

Gemini 2.0 Flash-Lite: 51.9 (#172), GPT-5.5 Instant: 62.0 (#81)

BenchmarkGemini 2.0 Flash-LiteGPT-5.5 Instant
LMArena Text13301419
LMArena Creative Writing13191420
LMArena Multi-Turn13071434
WildBench79%—
LiveBench Language34.3%—

Frequently asked questions

Is Gemini 2.0 Flash-Lite better than GPT-5.5 Instant?

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 37.3 on the Noometry Index.

Is Gemini 2.0 Flash-Lite 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 Flash-Lite and GPT-5.5 Instant share?

18 benchmarks have published results for both models. Gemini 2.0 Flash-Lite has 32 scored results on Noometry and GPT-5.5 Instant has 27.

Related comparisons

Go deeper