Noometry

Model comparison

Grok 4.20 Multi-Agent vs Hy3

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 44.2 on the Noometry Index. Hy3 costs 6.8× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

Last verified . 18 shared benchmarks.

Grok 4.20 Multi-Agent xAI

46.2

Rank #65 Confirmed

Hy3 Tencent

44.2

Rank #79 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 3 categories and Hy3 in 5 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 43.9 to 26.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 89.6% for Grok 4.20 Multi-Agent and 41.2% for Hy3.
  • Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
  • Grok 4.20 Multi-Agent accepts more context: 1M tokens versus 262K.
  • Hy3 has downloadable open weights; the other is API-only.

Side by side

Grok 4.20 Multi-AgentHy3
ProviderxAITencent
Noometry Index46.244.2
Released2026-03-092026-07-06
WeightsProprietaryOpen
Context window1M262K
Max output30K128K
Input $ / M tokens$1.25$0.13
Output $ / M tokens$2.50$0.53
Results tracked2019

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Category by category

Coding Hy3 leads

Grok 4.20 Multi-Agent: 43.0 (#92), Hy3: 46.8 (#63)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Coding14571464
LMArena WebDev—1508

Agentic & Tool Use Not comparable

Grok 4.20 Multi-Agent: —, Hy3: —

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Search1204—

Reasoning Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 43.9 (#48), Hy3: 26.1 (#136)

BenchmarkGrok 4.20 Multi-AgentHy3
NYT Connections (extended)89.6%41.2%
LMArena Hard Prompts14481447

Math Too close to call

Grok 4.20 Multi-Agent: 39.4 (#104), Hy3: 40.1 (#93)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Math14421475

Knowledge Too close to call

Grok 4.20 Multi-Agent: 40.4 (#119), Hy3: 40.8 (#114)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Expert14451460

Multimodal Not comparable

Grok 4.20 Multi-Agent: 40.5 (#48), Hy3: —

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Vision1259—

Multilingual Too close to call

Grok 4.20 Multi-Agent: 54.4 (#43), Hy3: 53.5 (#65)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Non-English14401426
LMArena Chinese14751493
LMArena French14661461
LMArena German14561439
LMArena Japanese14051392
LMArena Korean14161395
LMArena Russian14571432
LMArena Spanish14471456

Instruction Following Too close to call

Grok 4.20 Multi-Agent: 74.8 (#84), Hy3: 75.1 (#70)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Instruction Following14201426

Long Context Too close to call

Grok 4.20 Multi-Agent: 43.7 (#88), Hy3: 44.1 (#75)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Longer Query14311442

Writing & Preference Grok 4.20 Multi-Agent leads

Grok 4.20 Multi-Agent: 64.0 (#59), Hy3: 62.2 (#81)

BenchmarkGrok 4.20 Multi-AgentHy3
LMArena Text14501439
LMArena Creative Writing14361402
LMArena Multi-Turn14521436

Frequently asked questions

Is Grok 4.20 Multi-Agent better than Hy3?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 44.2 on the Noometry Index. Hy3 costs 6.8× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

Which is cheaper, Grok 4.20 Multi-Agent or Hy3?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

Is Grok 4.20 Multi-Agent or Hy3 better for coding?

Hy3 scores higher on coding benchmarks: 46.8 versus 43.0 in the Noometry coding category.

Which has the bigger context window?

Grok 4.20 Multi-Agent does, with 1M tokens against 262K.

How many benchmarks do Grok 4.20 Multi-Agent and Hy3 share?

18 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Hy3 has 19.

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