Model comparison
Hunyuan Vision 1.5 vs Step 3
Hunyuan Vision 1.5 is the stronger model overall, scoring 43.1 to 40.5 on the Noometry Index.
Last verified . 9 shared benchmarks.
Tencent
StepFunSummary
- They share 9 benchmarks with published results for both. Hunyuan Vision 1.5 scores higher in 7 categories and Step 3 in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Hunyuan Vision 1.5 leads 60.1 to 54.3.
- Step 3 has downloadable open weights; the other is API-only.
Side by side
| Hunyuan Vision 1.5 | Step 3 | |
|---|---|---|
| Provider | Tencent | StepFun |
| Noometry Index | 43.1 | 40.5 |
| Released | — | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 9 | 17 |
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Category by category
Coding Hunyuan Vision 1.5 leads
Hunyuan Vision 1.5: 41.8 (#119), Step 3: 40.1 (#147)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Coding | 1418 | 1367 |
Reasoning Too close to call
Hunyuan Vision 1.5: 28.9 (#97), Step 3: 28.4 (#105)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Hard Prompts | 1416 | 1355 |
| Kagi LLM Benchmark | — | 62.3% |
Math Not comparable
Hunyuan Vision 1.5: —, Step 3: 37.6 (#148)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Math | — | 1366 |
Knowledge Not comparable
Hunyuan Vision 1.5: —, Step 3: 36.8 (#164)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Expert | — | 1333 |
Multimodal Too close to call
Hunyuan Vision 1.5: 35.7 (#84), Step 3: 35.5 (#86)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Vision | 1180 | 1177 |
Multilingual Hunyuan Vision 1.5 leads
Hunyuan Vision 1.5: 50.3 (#125), Step 3: 46.3 (#159)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Non-English | 1382 | 1327 |
| LMArena Chinese | — | 1397 |
| LMArena German | — | 1371 |
| LMArena Korean | — | 1269 |
| LMArena Russian | — | 1331 |
| LMArena Spanish | — | 1371 |
Instruction Following Hunyuan Vision 1.5 leads
Hunyuan Vision 1.5: 73.7 (#117), Step 3: 70.4 (#164)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1397 | 1332 |
Long Context Hunyuan Vision 1.5 leads
Hunyuan Vision 1.5: 42.9 (#115), Step 3: 40.3 (#157)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Longer Query | 1404 | 1326 |
Writing & Preference Hunyuan Vision 1.5 leads
Hunyuan Vision 1.5: 60.1 (#100), Step 3: 54.3 (#151)
| Benchmark | Hunyuan Vision 1.5 | Step 3 |
|---|---|---|
| LMArena Text | 1405 | 1350 |
| LMArena Creative Writing | 1388 | 1321 |
| LMArena Multi-Turn | 1422 | 1341 |
Frequently asked questions
Is Hunyuan Vision 1.5 better than Step 3?
Hunyuan Vision 1.5 is the stronger model overall, scoring 43.1 to 40.5 on the Noometry Index.
Is Hunyuan Vision 1.5 or Step 3 better for coding?
Hunyuan Vision 1.5 scores higher on coding benchmarks: 41.8 versus 40.1 in the Noometry coding category.
How many benchmarks do Hunyuan Vision 1.5 and Step 3 share?
9 benchmarks have published results for both models. Hunyuan Vision 1.5 has 9 scored results on Noometry and Step 3 has 17.