Looking for a free alternative to Kimi K3 (Moonshot AI)? Here are 9 notable open models worth trying — 9 with a free tier. Kimi K3 (Moonshot AI) itself is free.
| Tool | Kimi K3 (Moonshot AI) (you searched) | Qwen (Alibaba) | DeepSeek Models | Mistral Open Models (Magistral, Devstral, Voxtral) |
|---|---|---|---|---|
| Pricing | free | free | free | free |
| Best for | Open-weight multimodal MoE with about 2.8T total and 104B active parameters, 1M-token context | 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 Kimi K3 (Moonshot AI): 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.
Kimi K3 (Moonshot AI) 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 Kimi K3 (Moonshot AI) alternative — Open Qwen3.x family from phone-sized to multi-trillion-parameter MoE, Apache 2.0.
✦ WhyA Kimi K3 (Moonshot AI) alternative — DeepSeek V4-Pro and V4-Flash open-weight MoE models, MIT-licensed.
✦ WhyA Kimi K3 (Moonshot AI) alternative — Open-weight Mistral Medium 3.5, Small 4 and Large 3 general models.
✦ WhyA Kimi K3 (Moonshot AI) alternative — Only major model family shipping full pretraining data (Dolma), code and intermediate checkpoints, not just weights.
✦ WhyA Kimi K3 (Moonshot AI) alternative — Open-weight Hunyuan Hy3 and Hy4-preview flagship text models.
✦ WhyA Kimi K3 (Moonshot AI) alternative — Falcon-H1 hybrid Transformer-Mamba family for efficient long-context inference.
✦ WhyA Kimi K3 (Moonshot AI) alternative — MiniMax's open-weight M-series: M3 multimodal MoE with very long context, plus M2.x agentic-coding checkpoints.
✦ WhyA Kimi K3 (Moonshot AI) alternative — MiMo-V2.6-Pro (1T parameters) and V2.6-Flash (311B) open-weight reasoning and agent models.
✦ WhyA Kimi K3 (Moonshot AI) alternative — Step-3.7-Flash open multimodal model with FP8, NVFP4 and GGUF builds.