AI Tools Hub

Open models

Open source AI tools

These tools publish their models as open source (open weights): you can download them, audit them, fine-tune them on your data and host them on your own infrastructure — a decisive advantage for privacy, compliance and technological independence.

Mistral (Le Chat)

Mistral AI
8.4/10

The French champion: strong open models, data hosted in Europe and a highly competitive API.

TextOpen sourceEU hosting
Freemium · from €15/moView sheet →
8.3/10

Moonshot AI's assistant: open-weight K2 models with agentic skills and very long documents handled with ease.

TextOpen weightAgents

DeepSeek

DeepSeek
8.5/10

The lab that shook the market: frontier-level open-weight models (MIT license) at a fraction of the usual cost.

TextOpen weightReasoning
8.4/10

Alibaba's open-weight model family: every size from mobile to server, Apache licensed, a favorite of the open source community.

TextOpen weightMultilingual
8.1/10

Meta's open-weight family that started the movement: free to download, fine-tune and deploy on your own hardware.

Open weightLocalFine-tuning

The selection grows as our editorial team runs more tests. Browse the full directory or suggest an open source tool.