Open source AI is reshaping the world, but the people who build it rarely get a room of their own. They make critical architectural choices with little visibility. They carry decisions that affect entire ecosystems..
POSAIS exists to change that. To give builders a stage. To create the friction that matters: between people who shipped something last month and people shaping regulation next year.
Being at POSAIS isn't attending a conference. It's taking a stand on which architectural choices we defend, which economic models we prove viable, which red lines we will not cross.
This is where the community sees itself clearly, challenges itself honestly, and raises the bar for everyone.

POSAIS is built for three kinds of people:
CTOs, CIOs and engineering leaders: who chose open weights over a proprietary API and shipped anyway. Who wrestle with sovereign infrastructure, performance, and transparency.
Data scientists and ML engineers: ho've trained and fine-tuned models nobody outside their lab has heard of. Who know the real breakthroughs aren't in the press releases.
Researchers and academics: who publish their weights, their training logs, their failures. Who believe European AI sovereignty starts in a git repository.

More broadly: POSAIS is for those who build with their hands, not just their opinions. Who make ambitious choices, and sometimes painful ones. Who give before they receive.

POSAIS takes place the day after the RAISE Summit (July 8–9) and the weekend before France's national holiday on July 14th.
If you're already in Paris for RAISE, this is the sharpest reason to stay one more day. If you were planning to stay here for the weekend, this is the best way to start it. And if you needed a reason to be in Paris in July, now you have three.
The builders will be here. The conversations will matter. The timing is perfect.
Friday, July 10th is yours.