Europe's AI autumn: from Paris and Lisbon via Vienna and Hamburg to Amsterdam

On 17 September, dotConferences turns the Folies Bergère theatre in Paris into a pure engineering stage for a day: curated 20-minute talks, live Q&As and 1:1 speaker meetups instead of paid programme slots. The audience, the organisers say, is around 1,000 "AI builders" — developers and researchers who actually ship.

The speaker list reads like a cross-section of today's agent and model scene: Stanislas Polu (Dust, ex-OpenAI), Ian Massingham (Anthropic), Guillaume Vernade (Google DeepMind), Christian Keller (Meta Superintelligence Labs) and several voices from Mistral AI and Hugging Face. As a companion event, the JavaScript conference dotJS follows on 18 September in the same venue.

From 21 to 27 September, Lisbon deliberately does without a central hall or a headliner: Lisbon AI Week spreads dozens of community-run events across the whole city — from hackathons (AI Hacker House, the legaltech hackathon PAXFORGE, a vibe-coding format) through workshops and panels to demo nights, an outdoor cinema and a casual 5K run. Most sessions are free, some ticketed, all open.

The week is carried by a broad network of partners: Cerebras, OpenAI, the Nova School of Business and Economics, Feedzai, Critical Software, the Cascais AI Hub and Mindstone among them. Venues range from the Centro Champalimaud and the IDEA Spaces to Cascais and Caparica — a format that showcases a city's ecosystem rather than a single stage.

The AI Training Institute invites attendees to the ARIANA event location in Vienna from 25 to 27 September — deliberately without parallel sessions: one stage, three days, a single narrative thread. Friday centres on AI in the enterprise with customer showcases and voicebot cases, Saturday on AI and desktop agents, Sunday on multimodal AI and the closing keynote.

Speakers include Sebastian Podesser (thirdmind, author of "Prompt Design"), keynote speaker Roger Basler de Roca, institute founder Raphael Schaad and responsible-AI voice Marit Brademann. Hands-on workshops on story branding, negotiation and AI image/video generation round out the programme; the three-day ticket costs €497 at the "Normal" tier according to the organiser and includes a networking app and personalised agenda.

On 6 and 7 October, Ebner Media Group fills Hall A2 of Hamburg Messe with a format you rarely see: an AI conference built specifically for event professionals. Held as part of LEaT con, it covers AI transformation in event management, event data, experience design, leadership and new business models — with a main stage, workshops, an expo area and networking.

The neo summit targets agencies, corporate planners, MICE managers and technology providers looking for concrete use cases rather than debates of principle. Tickets start at €349 (Young Professional) and €399 (Conference Pass) according to the organiser; both include two days of programming, workshops, networking and catering. The date is set and the programme keeps growing.

To close the autumn arc, World Summit AI marks its tenth edition on 7 and 8 October at the Taets Art & Event Park near Amsterdam. Organiser Inspired Minds cites 300+ speakers across 10 tracks, more than 10,000 expected attendees and 100+ exhibitors — one of Europe's largest AI summits.

The keynote line-up is suitably high-profile: Daphne Koller (insitro), Zico Kolter (Gray Swan AI, OpenAI board), Harrison Chase (LangChain), Mark Papermaster (AMD) and Audrey Tang (Taiwan's cyber ambassador) are representative. Around it, World AI Week spans 100+ side events, a Startup Battleground, an Investor Club and AI Executive Dinners — network density rather than a single stage.