Meta releases Muse Spark Open, 816B open-weights agentic model

An r/Singularity post asks whether cheap, laptop-scale AI training could let a single bad actor train a misaligned model, framing alignment as potentially unsolvable. The thread is discussion only, with no research, data, or named figures attached.

A single 61 KB HTML file renders a sunset ocean in-browser via WebGPU, with FFT wave simulation, whitecaps, a physically based sky with clouds, and sun glitter. WASD controls let you fly around the scene.

Anthropic has quietly presented its own draft AI safety bill to US lawmakers, per a Politico report cited by Bloomberg. The proposal outlines a plan for regulating AI safety and security.

Replit's BYOC runs the full platform — compute, storage, file system, integrations, and the Agent harness — inside a customer's own Azure, Google Cloud, or AWS tenant. Three options: Full BYOC, BYOC for Published Apps, and Image Exports for self-hosting.

Cursor's cloud agents can now produce interactive canvases that are shared via link, alongside a beta Environments API for programmatically creating and managing agent environments. Environments now support up to 300 repositories, with large environments loading 5x faster.

Reddit user idlerunner00 built Out of Pixkrieg, a browser-based multiplayer extraction RTS, using Claude Opus 5.5 with some GPT Astra involvement. Units raid for loot and recruits, and survivors carry over between runs.