Open Source · June 2025

Best Open-Source AI Tools 2025

Top open-source AI tools you can run locally, self-host, or contribute to — privacy-first and free. Ranked by AICompare's independent testing methodology — no sponsored placements.

#1
FLUX.1 · Black Forest Labs
The new open-source model rivaling Midjourney quality
✓ Free plan available
8.9
/ 10
#2
🐋
DeepSeek · DeepSeek AI
China's most powerful open-source AI model
✓ Free plan available
8.7
/ 10
#3
⚙️
Stable Diffusion · Stability AI
The open-source image AI with unlimited customization
✓ Free plan available
8.5
/ 10
#4
🦙
Meta Llama 3 · Meta AI
Meta's powerful open-source language model
✓ Free plan available
8.4
/ 10