Noometry

Model comparison

Gemini 4 Argon vs GPT-6 Astra

GPT-6 Astra is the stronger model overall, scoring 70.8 to 56.5 on the Noometry Index.

Last verified . 21 shared benchmarks.

Gemini 4 Argon Google

56.5

Rank #24 Confirmed

GPT-6 Astra OpenAI

70.8

Rank #1 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Gemini 4 Argon scores higher in 3 categories and GPT-6 Astra in 7 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Astra leads 85.1 to 44.2.
  • The biggest single-benchmark swing is APEX-Agents: 82.2% for Gemini 4 Argon and 64.7% for GPT-6 Astra.

Side by side

Gemini 4 ArgonGPT-6 Astra
ProviderGoogleOpenAI
Noometry Index56.570.8
Released2026-09-302026-09-03
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$10
Output $ / M tokens—$50
Results tracked2156

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Category by category

Coding GPT-6 Astra leads

Gemini 4 Argon: 62.0 (#9), GPT-6 Astra: 73.7 (#2)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena WebDev16781786
FrontierSWE55%65.5%
SciCode61.8%56.5%
LMArena Coding15501487
DeepSWE—74.1%
FrontierCode—53.3%
GSO—79.4%
WeirdML—93.6%
MirrorCode—46.7%
ALE-Bench—2,951

Agentic & Tool Use GPT-6 Astra leads

Gemini 4 Argon: 49.2 (#8), GPT-6 Astra: 52.9 (#3)

BenchmarkGemini 4 ArgonGPT-6 Astra
APEX-Agents82.2%64.7%
Vending-Bench 213,71815,515
Remote Labor Index—20.8%
BALROG—68.3%
GDP.pdf—34.2%

Reasoning GPT-6 Astra leads

Gemini 4 Argon: 44.2 (#47), GPT-6 Astra: 85.1 (#1)

BenchmarkGemini 4 ArgonGPT-6 Astra
CritPt27.1%31.7%
LMArena Hard Prompts15481462
ARC-AGI-2—95%
NYT Connections (extended)—98.1%
ARC-AGI-1—98.5%
Chess Puzzles—72%
EBR-Bench—76.2%
Mystery Game Puzzles—84%
DTBench—97.3%
LMCA—64.4%
Bench to the Future 3—0.14
Epoch Capabilities Index—166.45

Math GPT-6 Astra leads

Gemini 4 Argon: 73.9 (#17), GPT-6 Astra: 93.5 (#2)

BenchmarkGemini 4 ArgonGPT-6 Astra
ProofBench99%99%
LMArena Math15361465
FrontierMath (Tiers 1-3)—93.7%
FrontierMath Tier 4—97.6%
OTIS Mock AIME 2024-2025—100%
FrontierMath Erdős—2.9%

Knowledge GPT-6 Astra leads

Gemini 4 Argon: 43.9 (#89), GPT-6 Astra: 75.3 (#1)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena Expert15531483
GPQA Diamond—95.8%
Humanity's Last Exam—54.8%
SimpleQA Verified—75.6%
Vectara Hallucination Rate—8.7%

Multimodal GPT-6 Astra leads

Gemini 4 Argon: 46.5 (#14), GPT-6 Astra: 55.0 (#3)

BenchmarkGemini 4 ArgonGPT-6 Astra
Blueprint-Bench 254.4%49.7%
LMArena Vision—1281
Furniture Assembly—80%
LMArena Document—1468

Multilingual Gemini 4 Argon leads

Gemini 4 Argon: 60.3 (#1), GPT-6 Astra: 53.7 (#61)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena Non-English15231430
LMArena Chinese16101484
LMArena Russian15371436
LMArena Spanish14971407
LMArena French—1456
LMArena German—1440
LMArena Japanese—1379
LMArena Korean—1426

Instruction Following Gemini 4 Argon leads

Gemini 4 Argon: 80.1 (#2), GPT-6 Astra: 76.3 (#44)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena Instruction Following15381450

Long Context Gemini 4 Argon leads

Gemini 4 Argon: 47.6 (#15), GPT-6 Astra: 44.5 (#62)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena Longer Query15491456

Writing & Preference GPT-6 Astra leads

Gemini 4 Argon: 71.4 (#19), GPT-6 Astra: 75.3 (#7)

BenchmarkGemini 4 ArgonGPT-6 Astra
LMArena Text15341441
LMArena Creative Writing15311418
LMArena Multi-Turn15571448
EQ-Bench Creative Writing—2173

Frequently asked questions

Is Gemini 4 Argon better than GPT-6 Astra?

GPT-6 Astra is the stronger model overall, scoring 70.8 to 56.5 on the Noometry Index.

Is Gemini 4 Argon or GPT-6 Astra better for coding?

GPT-6 Astra scores higher on coding benchmarks: 73.7 versus 62.0 in the Noometry coding category.

How many benchmarks do Gemini 4 Argon and GPT-6 Astra share?

21 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and GPT-6 Astra has 56.

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