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Step 3 4 releases
By StepFun Jul 31, 2025 – May 29, 2026 4 open weights
Compare the latest 4
| Model |
Released |
Type |
Params |
Context |
Input $/M |
Output $/M |
Weights |
|
Step3
Deprecated |
Jul 31, 2025 |
MultimodalMoE |
321B38B active |
65.5K |
- |
- |
Open weights |
|
STEP3-VL-10B
|
Jan 14, 2026 |
MultimodalDense |
10B |
- |
- |
- |
Open weights |
|
Step 3.5 Flash
|
Feb 2, 2026 |
Text LLMMoE |
196B11B active |
262K |
$0.10 |
$0.30 |
Open weights |
|
Step 3.7 Flash
|
May 29, 2026 |
MultimodalMoE |
198B11B active |
262K |
$0.20 |
$1.15 |
Open weights |