Mistral Launches Forge: Train Your Own Frontier Model on Proprietary Data

Mistral AI·high signal

Mistral AI announced Forge on March 17, 2026 — an enterprise platform for pre-training, post-training, and RL-based policy alignment on internal organizational data, supporting both dense and MoE architectures with multimodal inputs. Launch partners include ASML, Ericsson, and the European Space Agency, with full on-premise deployment so organizations retain data ownership. Positioned as the 'build your own frontier model' alternative to fine-tuning hosted APIs, targeting government, finance, and manufacturing sectors that cannot send data to third-party clouds.