- Pick one local low-friction event: Devoxx Belgium (Oct 5-9, Antwerp) for the broadest Java/AI/cloud agenda within 1h of Brussels[20].
- Pick one applied-ML deep-dive: ML Prague (May 4-6, €590 +VAT for conf+workshops) or Applied AI Conference Berlin (May 28, one-day) — both target engineers shipping LLMs/agents to prod[5][9].
- Skip the festival giants (Web Summit, WAICF, AI Summit London) unless you're sourcing partners or hiring — exhibit-floor heavy, signal-to-noise low for technical work[15].
- If you can only attend one in autumn and want both research depth and applied content: PyData Amsterdam (Sep 10-11) for production data-science talks; ECML PKDD (Sep 7-11, Naples) if you'll read the proceedings anyway[8][3].
Today is May 1, 2026, so this calendar splits into still upcoming (the cards below) and already past (collapsed list at the bottom — useful for citing video archives or planning 2027). Each card carries the official URL, date, venue, target audience, and ticket band where published. Categories are fuzzy by design: a "festival" card may be more useful than an "academic" card depending on your goal (hiring vs. publishing vs. learning).
Applied / practitioner conferences
These are the events with the highest density of "we shipped X to production and here's what broke" talks. Best signal-per-day ratio for a senior dev.
Machine Learning Prague
11th edition. Hybrid. ~1,000 attendees, 45 international speakers from Meta, NVIDIA, AWS, Barclays. Tracks span LLMs/genAI, recsys/search, computer vision, financial ML, enterprise agents, edge AI[5].
Applied AI Conference Berlin
One day, two stages, explicitly for "teams building & running AI systems in production." Speakers from Microsoft, Google DeepMind, Stripe, OpenAI on agents, LLM optimisation, safety evals, deployment[9].
PyData Amsterdam
The strongest PyData of the year by speaker draw — Hannes Mühleisen (DuckDB Labs), Judith Dijk (European Defence Agency), Demetrios Brinkmann (MLOps Community). Two days, lots of production-data-science talks[8].
PyData London
Three days, audience explicitly "data scientists, data engineers, and developers of data analysis tools." Keynotes pull from Pydantic and AI research engineering[7].
Data Innovation Summit Stockholm
11th edition, 3,500+ attendees, 15 stages. Day 3 is a new vertical-industry day (Finance, Manufacturing, Retail, Healthcare, Telecom, Logistics, Public Sector, Gaming). Hackathon DIS2026X1 deploys an AI agent onto a physical robot[11].
Rise of AI Conference
10th-anniversary edition. Programmes split between policy/funding (founders, investors, policymakers) and an Applied AI Stage on launching, scaling, hiring, going global[10].
Academic flagships in Europe
If you publish or read papers, these are the European-hosted peer-reviewed venues running in 2026. Workshops are usually the most "applied" days — worth attending even without a paper.
IJCAI-ECAI 2026
Joint year for the International Joint Conference on AI and the European Conference on AI. Main track plus five special tracks: Human-Centered AI, AI for Social Good, AI4Tech, AI and Health, AI and Robotics[1].
ECML PKDD 2026
The European ML + Knowledge Discovery flagship. Main building at Via Claudio 21; plenaries 500m away at Mostra d'Oltremare. Five-day format with workshops bracketing the main programme[3].
Big-tent / festival events
Industrial scale, exhibit-heavy, multi-track. Usually a paid keynote/networking play; rarely the place to learn the implementation details of anything. Useful for sourcing vendors, hiring, or introducing non-technical stakeholders.
The AI Summit London
10th edition, embedded in London Tech Week. 5,000+ attendees, 300+ speakers, 10 stages, 100+ exhibitors. Speaker bench includes UK Government, IBM, Barclays, JPMorgan, M&S, Virgin Atlantic[13].
RAISE Summit
9,000+ attendees including Fortune 500, investors, founders. Tagline-heavy ("ROI-driven AI, agentic systems, sovereign AI" — the "4Fs framework"). Higher exec/investor density than tech[15].
World Summit AI
10th anniversary; ~120 speakers; sits inside the broader World AI Week (Oct 5-9, 2026, ~15,000 attendees). Strong on AI ethics, regulation, reasoning systems[16].
Web Summit Lisbon
The continent's biggest tech-festival headcount: 30,000+ founders, investors, leaders. AI Summit track theme this year: "Designing intelligence, disrupting society" — generative AI, model deployment, infra, regulation, enterprise adoption[17][21].
Developer / cloud-native conferences with strong AI tracks
Not AI-first, but where Belgian and adjacent dev communities cluster. Often the best local bet in terms of cost, language, and travel.
Devoxx Belgium
Five days, ~3,200 devs. Java is the historical core but the AI/big-data track has grown substantially: agents, retrieval, LLM apps in JVM ecosystems. CFP runs Jun 1 - Jul 17, 2026[20]. Best home-turf option for a Belgian dev.
NVIDIA GTC Paris
Returns after the 2025 inaugural Paris edition (Dôme de Paris, Jun 11-12). Cloud AI infra, agentic AI, physical AI; aimed at CXOs, devs, researchers, startups[26]. ⚠ Confirm 2026 dates on the official NVIDIA GTC events page before booking.
World AI Cannes Festival (WAICF)
Already past, listed for reference / 2027 planning. 10,000+ visitors, four tracks (AI in Business, Governance, Next-Gen Tech, Health AI)[12][22].
CFP status (as of 2026-05-01)
For senior devs who want to speak rather than just attend: the European AI/applied-ML CFP picture splits cleanly into "academic, ARR-style deadlines still ahead" and "festival/applied, mostly closed or rolling".
| Conference | CFP status | Notes |
|---|---|---|
| Academic — still open | ||
| NeurIPS 2026 (Paris node) | ✓ Open: main abs 4 May, paper 6 May; competitions 15 May; workshops 6 Jun[27] | Tri-site (Atlanta + Sydney + Paris); same deadlines for all three |
| EMNLP 2026 (Budapest) | ✓ Open: ARR 25 May; Industry Track 16 Jun | Closest open-CFP NLP venue to Belgium |
| BMVC 2026 (Lancaster) | ✓ Open: abs 22 May, paper 29 May | Closest open-CFP CV venue |
| CIKM 2026 (Rome) | ✓ Open: full 16/23 May; short / resource / demo 30 May / 6 Jun | IR / KM / data mining |
| BNAIC 2026 / BeNeLearn (Maastricht) | ⚠ Opens 1 Jun, closes 31 Aug 2026 | The only academic AI CFP in BE/NL still ahead; encore track accepts already-published work |
| Applied / festival | ||
| AI Summit London | ✓ Open — rolling speaker application[28] | Festival format; submit anytime |
| Web Summit Lisbon | ✓ Open — rolling speaker application[29] | 30,000+ attendees; "Designing intelligence" AI track |
| Big Data Conference Europe (Vilnius) | ✓ Open — rolling, no published deadline[30] | ~700 attendees, 50% senior-level — easier to actually meet speakers |
| ML Prague | ✗ Closed (event 4-6 May) | Plan for 2027 |
| PyData Amsterdam | ✗ CFP closed | Sep 10-11 event |
| PyData London | ✗ Closed 16 Feb 2026 | Plan for 2027 |
| Devoxx Belgium (AI track) | ⚠ Opens 1 Jun, closes 17 Jul 2026 | "GenAI & Beyond" track is one of nine; competitive selection |
| ai-PULSE Paris | n/a — curated by Station F / NVIDIA partners | Closed-list; no public CFP |
| World Summit AI (Zaandam) | n/a — invitation-curated | 10th-anniversary edition; ~120 invited speakers |
Actionable for an applied-ML practitioner in May 2026: NeurIPS Paris-node main paper (6 May), EMNLP via ARR (25 May), CIKM Rome short paper (30 May / 6 Jun), or wait for Devoxx Belgium and BNAIC Maastricht to open in June.
How to pick — a short rubric
| Goal | Best fit | Why |
|---|---|---|
| Learn applied LLM/agent patterns from people who shipped them | ML Prague · Applied AI Berlin · PyData Amsterdam | Speaker mix is engineers from prod teams, not exec keynotes[5][9][8] |
| Hire / get hired in the EU AI scene | Rise of AI Berlin · AI Summit London | Founders, investors, recruiters in the same room[10][13] |
| Stay close to research SOTA | IJCAI-ECAI · ECML PKDD · ECCV | Peer-reviewed; workshops are the high-signal day even if you skip the main track[1][3][2] |
| Minimum travel from Brussels | Devoxx Belgium (Antwerp) · PyData Amsterdam · ai-PULSE Paris | All ≤2h by train; ai-PULSE is one day so doable as a return trip[20][8][25] |
| Free / lowest-cost | FOSDEM AI Plumbers devroom (Brussels, Jan) | Free admission; AI Plumbers track for open-source ML infra. Already past for 2026, but mark for Jan 2027[18] |
| Cloud/Kubernetes platform with AI workloads | KubeCon EU (next: 2027) | 2026 edition was AI-infra-heavy (NVIDIA donated DRA driver to CNCF; "AI Runway" project launched); 13,500 attendees[19] |
Already past in 2026 (Jan-Apr) — for video archives or 2027 planning
- FOSDEM 2026 — Jan 31-Feb 1, Brussels (ULB Solbosch). Free, 8,000+ devs, AI Plumbers devroom in UD2.120[18].
- Applied Machine Learning Days (AMLD) — Feb 10-12, EPFL Lausanne. 10th anniversary; conference Feb 10-11, hands-on workshops Feb 12[4].
- WAICF Cannes — Feb 12-13. 10,000+ visitors, 320 speakers, 220 exhibitors[12].
- KubeCon + CloudNativeCon Europe — Mar 23-26, Amsterdam. Record 13,500 attendees; AI infra dominated keynotes[19].
- PyTorch Conference Europe — Apr 7-8, Paris. First European edition; researchers + practitioners; co-organised by Linux Foundation / PyTorch Foundation[24].
- PyCon DE & PyData — Apr 14-17, Darmstadt. Merged German Python and PyData event[6].
Scope notes
- "Europe" here means the geographic continent (incl. UK, Switzerland, Lithuania); excludes virtual-only events and non-European conferences with European satellites.
- "AI / applied-ML" is interpreted broadly: anything where the core programme spends >~30% on ML/AI content. Pure data-engineering conferences (Snowflake/Databricks roadshows) are excluded; Devoxx and KubeCon make the list because their 2026 editions had explicit AI tracks taking up significant programme share.
- Ticket prices are taken from official pricing pages where available (May 2026); some festival events publish only on request — flagged in each card.
- NeurIPS and ICLR are not in Europe in 2026. ICCV is biennial (odd years only). The European-hosted research flagships in 2026 are ECCV, ECML PKDD, IJCAI-ECAI.