Composer 2.5 is Cursor's third-generation proprietary coding agent, available exclusively inside the Cursor IDE and through the @cursor/sdk — not as a general API. Like its predecessor, it is built on ...

Composer 2.5 brings stronger long running coding performance to Cursor, with targeted RL, Kimi K2.5 foundations, new pricing, ...

The Essential Cloud for AI™, today announced CoreWeave Sandboxes, an execution layer that gives AI researchers and platform teams secure, isolated environments for running reinforcement learning (RL), ...

Alibaba's HDPO framework trains AI agents to skip unnecessary tool calls, cutting redundant invocations from 98% to 2% while boosting reasoning accuracy.

If OpenAI can accidentally train its flagship model to obsess over goblins, what other more subtle and potentially harmful biases are being reinforced through the same feedback loops?