Noometry

Model comparison

GPT-6 Astra vs Grok 4.1

GPT-6 Astra is the stronger model overall, scoring 70.8 to 41.5 on the Noometry Index.

Last verified . 18 shared benchmarks.

GPT-6 Astra OpenAI

70.8

Rank #1 Confirmed

Grok 4.1 xAI

41.5

Rank #134 Confirmed

Summary

  • They share 18 benchmarks with published results for both. GPT-6 Astra scores higher in 9 categories and Grok 4.1 in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Astra leads 85.1 to 29.5.

Side by side

GPT-6 AstraGrok 4.1
ProviderOpenAIxAI
Noometry Index70.841.5
Released2026-09-032025-11-17
WeightsProprietaryProprietary
Context window1.05M—
Max output128K—
Input $ / M tokens$10—
Output $ / M tokens$50—
Results tracked5619

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Category by category

Coding GPT-6 Astra leads

GPT-6 Astra: 73.7 (#2), Grok 4.1: 33.7 (#253)

BenchmarkGPT-6 AstraGrok 4.1
LMArena WebDev17861214
LMArena Coding14871445
DeepSWE74.1%—
FrontierCode53.3%—
FrontierSWE65.5%—
SciCode56.5%—
GSO79.4%—
WeirdML93.6%—
MirrorCode46.7%—
ALE-Bench2,951—

Agentic & Tool Use GPT-6 Astra leads

GPT-6 Astra: 52.9 (#3), Grok 4.1: 34.1 (#49)

BenchmarkGPT-6 AstraGrok 4.1
APEX-Agents64.7%—
Remote Labor Index20.8%—
Cybench—39%
BALROG68.3%—
GDP.pdf34.2%—
Vending-Bench 215,515—

Reasoning GPT-6 Astra leads

GPT-6 Astra: 85.1 (#1), Grok 4.1: 29.5 (#91)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Hard Prompts14621435
ARC-AGI-295%—
NYT Connections (extended)98.1%—
ARC-AGI-198.5%—
CritPt31.7%—
Chess Puzzles72%—
EBR-Bench76.2%—
Mystery Game Puzzles84%—
DTBench97.3%—
LMCA64.4%—
Bench to the Future 30.14—
Epoch Capabilities Index166.45—

Math GPT-6 Astra leads

GPT-6 Astra: 93.5 (#2), Grok 4.1: 38.9 (#120)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Math14651422
FrontierMath (Tiers 1-3)93.7%—
FrontierMath Tier 497.6%—
OTIS Mock AIME 2024-2025100%—
ProofBench99%—
FrontierMath Erdős2.9%—

Knowledge GPT-6 Astra leads

GPT-6 Astra: 75.3 (#1), Grok 4.1: 39.5 (#133)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Expert14831417
GPQA Diamond95.8%—
Humanity's Last Exam54.8%—
SimpleQA Verified75.6%—
Vectara Hallucination Rate8.7%—

Multimodal Not comparable

GPT-6 Astra: 55.0 (#3), Grok 4.1: —

BenchmarkGPT-6 AstraGrok 4.1
LMArena Vision1281—
Blueprint-Bench 249.7%—
Furniture Assembly80%—
LMArena Document1468—

Multilingual Too close to call

GPT-6 Astra: 53.7 (#61), Grok 4.1: 53.4 (#68)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Non-English14301425
LMArena Chinese14841465
LMArena French14561448
LMArena German14401446
LMArena Japanese13791397
LMArena Korean14261407
LMArena Russian14361434
LMArena Spanish14071438

Instruction Following GPT-6 Astra leads

GPT-6 Astra: 76.3 (#44), Grok 4.1: 73.8 (#111)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Instruction Following14501400

Long Context GPT-6 Astra leads

GPT-6 Astra: 44.5 (#62), Grok 4.1: 43.2 (#100)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Longer Query14561416

Writing & Preference GPT-6 Astra leads

GPT-6 Astra: 75.3 (#7), Grok 4.1: 62.4 (#75)

BenchmarkGPT-6 AstraGrok 4.1
LMArena Text14411437
LMArena Creative Writing14181411
LMArena Multi-Turn14481437
EQ-Bench Creative Writing2173—

Frequently asked questions

Is GPT-6 Astra better than Grok 4.1?

GPT-6 Astra is the stronger model overall, scoring 70.8 to 41.5 on the Noometry Index.

Is GPT-6 Astra or Grok 4.1 better for coding?

GPT-6 Astra scores higher on coding benchmarks: 73.7 versus 33.7 in the Noometry coding category.

How many benchmarks do GPT-6 Astra and Grok 4.1 share?

18 benchmarks have published results for both models. GPT-6 Astra has 56 scored results on Noometry and Grok 4.1 has 19.

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