Model comparison

Claude 2.1 vs Hy4 preview

Hy4 preview is the stronger model overall, scoring 45.3 to 25.2 on the Noometry Index.

Last verified October 10, 2026. 0 shared benchmarks.

Claude 2.1 Anthropic

25.2

Rank #345 Reported

Hy4 preview

Tencent

45.3

Rank #73 Reported

Summary

The widest gap is in math, where Hy4 preview leads 55.7 to 10.2.
Hy4 preview has downloadable open weights; the other is API-only.

Side by side

Claude 2.1 and Hy4 preview specifications
	Claude 2.1	Hy4 preview
Provider	Anthropic	Tencent
Noometry Index	25.2	45.3
Released	2023-11-21	2026-08-28
Weights	Proprietary	Open
Context window	—	1.05M
Max output	—	64K
Input $ / M tokens	—	$0.75
Output $ / M tokens	—	$2.25
Results tracked	7	3

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Category by category

Coding Hy4 preview leads

Claude 2.1: 26.2 (#327), Hy4 preview: 51.6 (#38)

Coding benchmarks
Benchmark	Claude 2.1	Hy4 preview
LMArena WebDev	—	1632
WeirdML	7.1%	—

Reasoning Hy4 preview leads

Claude 2.1: 21.4 (#221), Hy4 preview: 31.9 (#79)

Reasoning benchmarks
Benchmark	Claude 2.1	Hy4 preview
NYT Connections (extended)	—	68.2%
DTBench	51%	—
Epoch Capabilities Index	119.27	—
ForecastBench	54.2	—

Math Hy4 preview leads

Claude 2.1: 10.2 (#315), Hy4 preview: 55.7 (#42)

Math benchmarks
Benchmark	Claude 2.1	Hy4 preview
OTIS Mock AIME 2024-2025	1.9%	—
ProofBench	—	75%

Knowledge Not comparable

Claude 2.1: 15.4 (#292), Hy4 preview: —

Knowledge benchmarks
Benchmark	Claude 2.1	Hy4 preview
GPQA Diamond	33%	—
MMLU	73.5%	—

Frequently asked questions

Is Claude 2.1 better than Hy4 preview?

Hy4 preview is the stronger model overall, scoring 45.3 to 25.2 on the Noometry Index.

Is Claude 2.1 or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 26.2 in the Noometry coding category.

How many benchmarks do Claude 2.1 and Hy4 preview share?

0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Hy4 preview has 3.