CoreWeave launches Forge, combining Weights & Biases, OpenPipe and marimo

CoreWeave launched Forge, a development platform that merges Weights & Biases Models, OpenPipe post-training and the open-source marimo notebook project. It covers notebooks, agent observability, sandboxes, a model registry and post-training, sold in Free, Pro and Enterprise editions. MasterClass and Canva were named as launch customers.

• Combines Weights & Biases Models, OpenPipe post-training and marimo notebooks
• Agent Lens detects 20% more critical failures than a general-purpose frontier LLM (company benchmark)
• Serverless RL trains 1.4x faster at 40% lower cost than self-managed setups (company claim)
• Launch customers MasterClass and Canva; Free, Pro and Enterprise tiers