Noometry

Model comparison

Hunyuan Vision 1.5 vs Step 3.7 Flash

Hunyuan Vision 1.5 is the stronger model overall, scoring 42.6 to 36.5 on the Noometry Index.

Last verified . 0 shared benchmarks.

Hunyuan Vision 1.5 Tencent

42.6

Rank #95 Confirmed

Step 3.7 Flash StepFun

36.5

Rank #207 Reported

Summary

  • The widest gap is in reasoning, where Hunyuan Vision 1.5 leads 27.8 to 20.9.
  • Step 3.7 Flash has downloadable open weights; the other is API-only.

Side by side

Hunyuan Vision 1.5Step 3.7 Flash
ProviderTencentStepFun
Noometry Index42.636.5
Released—2026-05-29
WeightsProprietaryOpen
Context window—256K
Max output—256K
Input $ / M tokens—$0.18
Output $ / M tokens—$1.11
Results tracked95

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Category by category

Coding Hunyuan Vision 1.5 leads

Hunyuan Vision 1.5: 41.2 (#119), Step 3.7 Flash: 39.4 (#147)

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
SciCode—40%
LMArena Coding1419—
ALE-Bench—694.12

Reasoning Hunyuan Vision 1.5 leads

Hunyuan Vision 1.5: 27.8 (#96), Step 3.7 Flash: 20.9 (#211)

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
NYT Connections (extended)—39.7%
CritPt—2.3%
LMArena Hard Prompts1417—

Math Not comparable

Hunyuan Vision 1.5: —, Step 3.7 Flash: 40.9 (#74)

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
MathArena Final-Answer Competitions—68.5%

Multimodal Not comparable

Hunyuan Vision 1.5: 35.1 (#78), Step 3.7 Flash: —

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
LMArena Vision1180—

Multilingual Not comparable

Hunyuan Vision 1.5: 50.5 (#118), Step 3.7 Flash: —

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
LMArena Non-English1383—

Instruction Following Not comparable

Hunyuan Vision 1.5: 73.9 (#110), Step 3.7 Flash: —

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
LMArena Instruction Following1398—

Long Context Not comparable

Hunyuan Vision 1.5: 42.9 (#110), Step 3.7 Flash: —

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
LMArena Longer Query1405—

Writing & Preference Not comparable

Hunyuan Vision 1.5: 60.4 (#95), Step 3.7 Flash: —

BenchmarkHunyuan Vision 1.5Step 3.7 Flash
LMArena Text1407—
LMArena Creative Writing1389—
LMArena Multi-Turn1423—

Frequently asked questions

Is Hunyuan Vision 1.5 better than Step 3.7 Flash?

Hunyuan Vision 1.5 is the stronger model overall, scoring 42.6 to 36.5 on the Noometry Index.

Is Hunyuan Vision 1.5 or Step 3.7 Flash better for coding?

Hunyuan Vision 1.5 scores higher on coding benchmarks: 41.2 versus 39.4 in the Noometry coding category.

How many benchmarks do Hunyuan Vision 1.5 and Step 3.7 Flash share?

0 benchmarks have published results for both models. Hunyuan Vision 1.5 has 9 scored results on Noometry and Step 3.7 Flash has 5.

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