Noometry

Model comparison

GPT-6 Astra vs Hy3

GPT-6 Astra is the stronger model overall, scoring 70.8 to 44.2 on the Noometry Index. Hy3 costs 139× less per token, which makes it the better buy when GPT-6 Astra's lead doesn't matter for your workload.

Last verified . 19 shared benchmarks.

GPT-6 Astra OpenAI

70.8

Rank #1 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-6 Astra scores higher in 8 categories and Hy3 in 0 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Astra leads 85.1 to 26.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 98.1% for GPT-6 Astra and 41.2% for Hy3.
  • Hy3 is cheaper at $0.0825 / $0.33 per million input/output tokens, against $10 / $50 for GPT-6 Astra.
  • GPT-6 Astra accepts more context: 1.05M tokens versus 262K.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

GPT-6 AstraHy3
ProviderOpenAITencent
Noometry Index70.844.2
Released2026-09-032026-07-06
WeightsProprietaryOpen
Context window1.05M262K
Max output128K128K
Input $ / M tokens$10$0.0825
Output $ / M tokens$50$0.33
Results tracked5619

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Category by category

Coding GPT-6 Astra leads

GPT-6 Astra: 73.7 (#2), Hy3: 46.8 (#63)

BenchmarkGPT-6 AstraHy3
LMArena WebDev17861508
LMArena Coding14871464
DeepSWE74.1%—
FrontierCode53.3%—
FrontierSWE65.5%—
SciCode56.5%—
GSO79.4%—
WeirdML93.6%—
MirrorCode46.7%—
ALE-Bench2,951—

Agentic & Tool Use Not comparable

GPT-6 Astra: 52.9 (#3), Hy3: —

BenchmarkGPT-6 AstraHy3
APEX-Agents64.7%—
Remote Labor Index20.8%—
BALROG68.3%—
GDP.pdf34.2%—
Vending-Bench 215,515—

Reasoning GPT-6 Astra leads

GPT-6 Astra: 85.1 (#1), Hy3: 26.1 (#136)

BenchmarkGPT-6 AstraHy3
NYT Connections (extended)98.1%41.2%
LMArena Hard Prompts14621447
ARC-AGI-295%—
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), Hy3: 40.1 (#93)

BenchmarkGPT-6 AstraHy3
LMArena Math14651475
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), Hy3: 40.8 (#114)

BenchmarkGPT-6 AstraHy3
LMArena Expert14831460
GPQA Diamond95.8%—
Humanity's Last Exam54.8%—
SimpleQA Verified75.6%—
Vectara Hallucination Rate8.7%—

Multimodal Not comparable

GPT-6 Astra: 55.0 (#3), Hy3: —

BenchmarkGPT-6 AstraHy3
LMArena Vision1281—
Blueprint-Bench 249.7%—
Furniture Assembly80%—
LMArena Document1468—

Multilingual Too close to call

GPT-6 Astra: 53.7 (#61), Hy3: 53.5 (#65)

BenchmarkGPT-6 AstraHy3
LMArena Non-English14301426
LMArena Chinese14841493
LMArena French14561461
LMArena German14401439
LMArena Japanese13791392
LMArena Korean14261395
LMArena Russian14361432
LMArena Spanish14071456

Instruction Following GPT-6 Astra leads

GPT-6 Astra: 76.3 (#44), Hy3: 75.1 (#70)

BenchmarkGPT-6 AstraHy3
LMArena Instruction Following14501426

Long Context Too close to call

GPT-6 Astra: 44.5 (#62), Hy3: 44.1 (#75)

BenchmarkGPT-6 AstraHy3
LMArena Longer Query14561442

Writing & Preference GPT-6 Astra leads

GPT-6 Astra: 75.3 (#7), Hy3: 62.2 (#81)

BenchmarkGPT-6 AstraHy3
LMArena Text14411439
LMArena Creative Writing14181402
LMArena Multi-Turn14481436
EQ-Bench Creative Writing2173—

Frequently asked questions

Is GPT-6 Astra better than Hy3?

GPT-6 Astra is the stronger model overall, scoring 70.8 to 44.2 on the Noometry Index. Hy3 costs 139× less per token, which makes it the better buy when GPT-6 Astra's lead doesn't matter for your workload.

Which is cheaper, GPT-6 Astra or Hy3?

Hy3 is cheaper. It lists at $0.0825 per million input tokens and $0.33 per million output tokens; GPT-6 Astra lists at $10 and $50.

Is GPT-6 Astra or Hy3 better for coding?

GPT-6 Astra scores higher on coding benchmarks: 73.7 versus 46.8 in the Noometry coding category.

Which has the bigger context window?

GPT-6 Astra does, with 1.05M tokens against 262K.

How many benchmarks do GPT-6 Astra and Hy3 share?

19 benchmarks have published results for both models. GPT-6 Astra has 56 scored results on Noometry and Hy3 has 19.

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