Noometry

Model comparison

Gemini 4 Argon vs GPT-5.5 Instant

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 42.7 on the Noometry Index.

Last verified . 15 shared benchmarks.

Gemini 4 Argon Google

56.5

Rank #24 Confirmed

GPT-5.5 Instant OpenAI

42.7

Rank #110 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Gemini 4 Argon scores higher in 8 categories and GPT-5.5 Instant in 1 category; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Gemini 4 Argon leads 73.9 to 26.5.
  • The biggest single-benchmark swing is CritPt: 27.1% for Gemini 4 Argon and 0% for GPT-5.5 Instant.

Side by side

Gemini 4 ArgonGPT-5.5 Instant
ProviderGoogleOpenAI
Noometry Index56.542.7
Released2026-09-302026-05-05
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2127

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

Category by category

Coding Gemini 4 Argon leads

Gemini 4 Argon: 62.0 (#9), GPT-5.5 Instant: 44.3 (#74)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
SciCode61.8%48.6%
LMArena Coding15501433
LMArena WebDev1678—
FrontierSWE55%—

Agentic & Tool Use Not comparable

Gemini 4 Argon: 49.2 (#8), GPT-5.5 Instant: —

BenchmarkGemini 4 ArgonGPT-5.5 Instant
APEX-Agents82.2%—
Vending-Bench 213,718—

Reasoning Gemini 4 Argon leads

Gemini 4 Argon: 44.2 (#47), GPT-5.5 Instant: 24.9 (#155)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
CritPt27.1%0%
LMArena Hard Prompts15481426
Chess Puzzles—12%
Epoch Capabilities Index—142.52

Math Gemini 4 Argon leads

Gemini 4 Argon: 73.9 (#17), GPT-5.5 Instant: 26.5 (#259)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Math15361420
FrontierMath (Tiers 1-3)—26.3%
FrontierMath Tier 4—2.4%
OTIS Mock AIME 2024-2025—68.1%
ProofBench99%—

Knowledge GPT-5.5 Instant leads

Gemini 4 Argon: 43.9 (#89), GPT-5.5 Instant: 48.9 (#74)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Expert15531409
GPQA Diamond—82.5%

Multimodal Gemini 4 Argon leads

Gemini 4 Argon: 46.5 (#14), GPT-5.5 Instant: 40.0 (#52)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Vision—1250
Blueprint-Bench 254.4%—
LMArena Document—1403

Multilingual Gemini 4 Argon leads

Gemini 4 Argon: 60.3 (#1), GPT-5.5 Instant: 52.8 (#80)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Non-English15231417
LMArena Chinese16101456
LMArena Russian15371431
LMArena Spanish14971429
LMArena French—1428
LMArena German—1411
LMArena Japanese—1408
LMArena Korean—1392

Instruction Following Gemini 4 Argon leads

Gemini 4 Argon: 80.1 (#2), GPT-5.5 Instant: 74.2 (#100)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Instruction Following15381406

Long Context Gemini 4 Argon leads

Gemini 4 Argon: 47.6 (#15), GPT-5.5 Instant: 43.4 (#96)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Longer Query15491422

Writing & Preference Gemini 4 Argon leads

Gemini 4 Argon: 71.4 (#19), GPT-5.5 Instant: 61.8 (#85)

BenchmarkGemini 4 ArgonGPT-5.5 Instant
LMArena Text15341419
LMArena Creative Writing15311419
LMArena Multi-Turn15571433

Frequently asked questions

Is Gemini 4 Argon better than GPT-5.5 Instant?

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 42.7 on the Noometry Index.

Is Gemini 4 Argon or GPT-5.5 Instant better for coding?

Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 44.3 in the Noometry coding category.

How many benchmarks do Gemini 4 Argon and GPT-5.5 Instant share?

15 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and GPT-5.5 Instant has 27.

Related comparisons

Go deeper