Open source AI models
375 open-weight models you can download or call through any host, ranked by quality.
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| SSao10K Stheno 8bSao10KCC BY-NC 4.0Reasoning | $0.05/1Mvia Hugging Face | 8K | $0.05/1M | $0.05/1M | — | Jun 5, 2024 | |
 Seed Oss 36B InstructByteDanceApache 2.0JSON+3 | $0.534/1Mvia AIHubMix | 256K | $0.20/1M | $0.534/1M | — | Aug 20, 2025 | |
| TSkyfall 36B V2ThedrummerOpen weightsPrompt caching+1 | $0.80/1Mvia OpenRouter | 33K | $0.55/1M | $0.80/1M | — | Feb 3, 2025 | |
 Step 3.5 FlashStepFunApache 2.0Reasoning+1 | $0.292/1Mvia SiliconFlow | 256K | $0.097/1M | $0.292/1M | — | Feb 1 | |
| Step 3.7 FlashStepFunApache 2.0Prompt caching+4 | $0.925/1Mvia APIMart | 262K | $0.154/1M | $0.925/1M | — | May 23 | |
| Step 5 PreviewStepFunOpen weightsPrompt caching+4 | $2.70/1Mvia Deep Infra | 1.05M | $1/1M | $2.70/1M | — | Sep 20 | |
| Step3StepFunApache 2.0 | $2.75/1Mvia AIHubMix | — | $1.10/1M | $2.75/1M | — | Jul 28, 2025 | |
 ThudmZhipu AIMIT | $0.10/1Mvia AIHubMix | — | $0.10/1M | $0.10/1M | — | Jun 28, 2025 | |
| UI-TARS 7BByteDanceApache 2.0Prompt caching+2 | $0.20/1Mvia OpenRouter | 128K | $0.10/1M | $0.20/1M | — | Apr 16, 2025 | |
 Voxtral Small 24B 2507MistralApache 2.0Prompt caching+2 | $0.30/1Mvia OpenRouter | 33K | $0.10/1M | $0.30/1M | — | Jul 1, 2025 | |
 Zamba2 7B InstructzyphraApache 2.0 | Free/1Mvia Nvidia | — | Free/1M | Free/1M | — | Sep 27, 2024 | |
 Wan2.2-I2V-A14BAlibabaApache 2.0 | $0.278/videovia SiliconFlow | — | — | $0.278/video | — | Jul 24, 2025 | |
| Wan2.2-T2V-A14BAlibabaApache 2.0 | $0.278/videovia SiliconFlow | — | — | $0.278/video | — | Jul 24, 2025 | |
 Stable Audio 3 MediumStability AIOpen weights · with terms | $0.042/runvia Fal | — | — | $0.042/run | — | May 17 | |
| Stable Audio 3 Medium BaseStability AIOpen weights · with terms | $0.048/runvia Fal | — | — | $0.048/run | — | May 17 | |
| Stable Audio 3 Small MusicStability AIOpen weights · with terms | $0.022/runvia Fal | — | — | $0.022/run | — | May 17 | |
| Stable Audio 3 Small Music BaseStability AIOpen weights · with terms | $0.028/runvia Fal | — | — | $0.028/run | — | May 16 | |
| Stable Audio 3 Small SFXStability AIOpen weights · with terms | $0.021/runvia Fal | — | — | $0.021/run | — | May 17 | |
| Stable Audio 3 Small SFX BaseStability AIOpen weights · with terms | $0.028/runvia Fal | — | — | $0.028/run | — | May 17 | |
| WhisperOpenAIApache 2.0 | $0.006/1Mvia CrazyRouter | — | $0.006/1M | $0.006/1M | — | Sep 26, 2022 | |
| Whisper Large v3 TurboOpenAIMIT | $0.000667/minvia Groq | — | — | $0.000667/min | — | Oct 1, 2024 | |
| Zonos2zyphraApache 2.0 | $0.01/runvia WaveSpeedAI | — | — | $0.01/run | — | Jun 11 | |
 SAM 3D ObjectsMetaOpen weights | $0.024/runvia WaveSpeedAI | — | — | $0.024/run | — | Oct 6, 2025 | |
| TriposplatTripoMIT | $0.05/runvia Fal | — | — | $0.05/run | — | May 31 | |
| SAM 3.1MetaOpen weights | $0.01/runvia Fal | — | — | $0.01/run | — | Mar 26 |
Frequently asked questions
Ranked here by quality. Open models now trail the best closed ones by little, and the hosts that serve them often charge much less.
Most "open source" models publish their weights under a license, but not their training data. We list every model whose weights you can download.
On your own hardware, or through inference hosts that charge per token. Open a model's providers to compare each host's price, speed and uptime.
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