Looking for a free alternative to Step (StepFun)? Here are 9 notable open models worth trying — 9 with a free tier. Step (StepFun) itself is free.
| Tool | Step (StepFun) (you searched) | Qwen (Alibaba) | DeepSeek Models | Mistral Open Models (Magistral, Devstral, Voxtral) |
|---|---|---|---|---|
| Pricing | free | free | free | free |
| Best for | Step-3.7-Flash open multimodal model with FP8, NVFP4 and GGUF builds | Open Qwen3.x family from phone-sized to multi-trillion-parameter MoE, Apache 2.0 | DeepSeek V4-Pro and V4-Flash open-weight MoE models, MIT-licensed | Open-weight Mistral Medium 3.5, Small 4 and Large 3 general models |
| Visit | Open ↗ | Open ↗ | Open ↗ | Open ↗ |
Qwen (Alibaba) is the closest free alternative to Step (StepFun): same Notable Open Models sub-category, and it is free. Open Qwen3.x family from phone-sized to multi-trillion-parameter MoE, Apache 2.0
Yes — 9 of the 9 alternatives listed here are free or freemium: Qwen (Alibaba), DeepSeek Models, Mistral Open Models (Magistral, Devstral, Voxtral), OLMo (Ai2), Hunyuan (Tencent). None of them are paid-only.
Step (StepFun) is free. There is no paid plan attached to it in the catalog.
They are the other tools in Notable Open Models, then the rest of AI Models & Local Execution, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.
✦ WhyA Step (StepFun) alternative — Open Qwen3.x family from phone-sized to multi-trillion-parameter MoE, Apache 2.0.
✦ WhyA Step (StepFun) alternative — DeepSeek V4-Pro and V4-Flash open-weight MoE models, MIT-licensed.
✦ WhyA Step (StepFun) alternative — Open-weight Mistral Medium 3.5, Small 4 and Large 3 general models.
✦ WhyA Step (StepFun) alternative — Only major model family shipping full pretraining data (Dolma), code and intermediate checkpoints, not just weights.
✦ WhyA Step (StepFun) alternative — Open-weight Hunyuan Hy3 and Hy4-preview flagship text models.
✦ WhyA Step (StepFun) alternative — Falcon-H1 hybrid Transformer-Mamba family for efficient long-context inference.
✦ WhyA Step (StepFun) alternative — MiniMax's open-weight M-series: M3 multimodal MoE with very long context, plus M2.x agentic-coding checkpoints.
✦ WhyA Step (StepFun) alternative — MiMo-V2.6-Pro (1T parameters) and V2.6-Flash (311B) open-weight reasoning and agent models.
✦ WhyA Step (StepFun) alternative — ERNIE-4.5 family including 21B-A3B Thinking and VL-424B-A47B multimodal MoE.