paris

with Harpreet Sahota (Developer Relations, Voxel51) · Atif Anwer (Researcher, University Bourgogne Europe (Ex)) · Guillaume Astruc (Researcher, Imagine - ENPC) + 1 more

A technical, in-person meetup hosted by Voxel51 at InstaDeep, bringing together engineers, researchers and AI practitioners for expert talks across AI, machine learning and computer vision. The line-up: Harpreet Sahota (Voxel51) on building real-world computer vision systems; Atif Anwer on detecting and segmenting nanoparticles in microscopy images; Guillaume Astruc (Imagine - ENPC) on resolution- and modality-agnostic transformers for Earth observation; and Lucas Degeorge (Ecole Polytechnique / Ecole des Ponts - AMIAD) on efficient, controllable image generation. Expect demos, practical insights and discussion of the evolving AI tooling ecosystem.

A Startup Valley pitch-and-networking night at Cafe des Arts, connecting founders, angel investors, VC partners, and AI and tech professionals. The evening mixes structured networking with a pitch session where selected founders get five minutes on stage in front of active investors, followed by Q&A and direct feedback. Part of Startup Valley's global community of 900+ pitch nights across 25 cities. The venue is a partner - please buy at least one drink.

with Emmanuel Orozco (Speaker — What Exactly Is Loop Engineering?, Hold My Club)

A night for people building with AI, pitched at every level from shipping agents to merely agent-curious. This edition goes deep on loop engineering: the plan, act, observe, repeat cycles at the heart of every AI agent, and how to design them so your agents stop getting stuck, going in circles, or burning tokens for nothing. Emmanuel Orozco opens with a short talk on what loop engineering actually is, and there is an open call for five-minute demos — an agent loop, an eval trick, a tool you love. The bulk of the evening is Collaboration Rounds: fast one-to-one conversations built to surface what others are building, what they are debugging, and what they are open to collaborating on. Closes with a team quiz and a small prize.

with Michel Bauwens (Founder, P2P Foundation) · Martin Calnan (Head, UNESCO Chair on Future of Finance, Les Ponts Business School)

In an age of accelerating technological change and growing institutional strain, how do we redesign the way we coordinate, govern and build? This is the second event bringing together RadicalxChange, Plurality and Planetizen, this time with the UNESCO Chair for Future of Finance at Les Ponts Business School. The three movements approach the world's largest problems from different angles but share a method: treating ideas, institutions and technologies as prototypes to be tested, iterated and improved through collective intelligence. Event one covered sustainability under geopolitical fragmentation, how to govern AI's societal impact, and network societies. This afterwork lab puts all three movements on one question: every revolution is a value revolution — which value shift would produce a positive outcome across all three? Michel Bauwens, founder of the P2P Foundation, and Martin Calnan of the UNESCO Chair kick it off. For innovators, builders and thinkers. Approval required.

A 24-hour hackathon where 50 builders make the next generation of AI-generated content and creative tools, competing for 1,500 euros in cash plus tool credits. Three tracks: AI cinema and series, AI shorts and vertical content, and tools for AI artists. Teams of one to three build overnight then pitch live to a jury on Sunday afternoon. Brought to you by Le Motif, an AI creative with a 1,000-plus member community, and powered by We Are Founders, a 400-plus Paris founders community. Supabase and Cursor sponsor with credits for every hacker and prizes across tracks; the top three teams also get a month at Station F to keep shipping. Food and drink throughout, including a gastronomic French dinner on Saturday night. Each hacker is approved individually and gets Discord access ahead of time to form teams. 50 spots.

The public closing night of the Generathon, for anyone who wants the output without the 24 hours of building. Doors open at 16:00 for guests and drinks; the demos start at 17:30 with live screenings of what 50 builders made over the weekend — AI short films, viral vertical formats, and tools built for AI artists. Winners are announced at 18:30 across the three tracks, with 1,500 euros in cash, Supabase and Cursor credits, and a month at Station F for the top three teams. Food and networking from 19:00 to 20:00. Hosted by Le Motif and the We Are Founders community. A short, high-signal way to see where AI-generated content actually is right now rather than where the demos on your timeline say it is.

with Fabrizio Nastri (CEO, FlexUp)

FlexUp's twenty-fifth Startup Networking Workshop at Station F, and the series keeps running through the August lull when most of the Paris calendar has gone quiet. The format is a small curated session for early-stage and growing startups, project leaders, and the ecosystem partners who actually work with startups — a focused presentation followed by open networking. Attendance is deliberately capped so that the exchanges mean something: this is not a room where you collect thirty business cards and remember none of them. Hosted by FlexUp CEO Fabrizio Nastri at the world's largest startup campus. 90 minutes, free, and a dependable option if you are in Paris in early August and want the ecosystem in one room.

AI Tinkerers Paris and ParisRB.new join forces for an evening on the intersection of Ruby, Rails and generative AI, hosted at Algolia's Paris office. The bar is explicitly show, don't tell: no pitch decks, no slideware — raw working code, terminal sessions and live deployments from developers orchestrating models, managing vector search and structuring prompts natively in Ruby. Five-minute technical show-and-tells are open for proposals, and early-stage prototypes and fragile builds are actively welcomed. A decentralised Science Fair runs during the networking blocks, inspired by the Homebrew Computer Club: set up a laptop, walk peers through your codebase, run local models, get direct feedback. Capacity is capped at 100 and registrations are manually screened with priority to active builders — complete your profile with GitHub or portfolio links. Enter via 3-5 rue de Bucarest, not the rue d'Amsterdam address on maps.