Mistral AI Bruyères-le-Châtel (Eclairion)
AI data center in Bruyères-le-Châtel, Île-de-France, France, operated by Mistral AI.
Mistral AI's own compute site at Eclairion's campus in Bruyères-le-Châtel, south of Paris, first built with Fluidstack. Mistral raised $830M of debt in March 2026 for 13,800 Nvidia GB300 GPUs here.
- Live power
- —
- Planned power
- 44MW 1
- Status
- Operational
- Accelerators
- 13,800
Power: what each source says
44 MW and 13,800 GB300 GPUs funded by the March 2026 debt raise, targeted for Q2 2026; no public go-live confirmation found as of 2026-11-09. Status reflects the earlier Fluidstack-built cluster for Mistral at Eclairion (2025). Fluidstack's 2025 plan for a 1 GW French site is separate and unconfirmed; MGX/Bpifrance/Nvidia/Mistral announced a different 1.4 GW campus near Paris for 2028.
Figures labelled Epoch AI are estimates from satellite imagery, permits and filings. Company figures come from the operator, owner or its filings. IT power is what the servers draw; in Epoch AI’s figures for these campuses it runs about 15–35% below total facility power.
Tenants
Mistral AI
Campus facts
- Operator
- Mistral AI 1
- Owner / developer
- Eclairion (site); Fluidstack (initial build) 1
- City
- Bruyères-le-Châtel 1
- State / region
- Île-de-France 1
- Country
- France 1
- First power
- 2025 1
- Chips
- NVIDIA GB300 1
- GPUs / accelerators
- 13,800 1
- Cooling
- liquid 1
- Power source
- grid 1
- Coordinates
- 48.59° N, 2.19° E (town level)
- Verified
Sources
- The Next Web: Mistral secures $830M to build its own AI data centre accessed 2026-11-09
- Euronews: Mistral raises $830M for data centre near Paris (2026-03-30) accessed 2026-11-09
- AIwire: Fluidstack and Eclairion to deploy AI supercomputer for Mistral (2025-03) accessed 2026-11-09