Meta's New Model Has 16 Tools. Here's What They Do.

Meta's New Model Has 16 Tools. Here's What They Do. Meta just released Muse Spark —their first model since Llama 4 almost exactly a year ago. It's competitive with GPT-5.4, Gemini 3.1 Pro, and Opus 4.6 on benchmarks. But that's not the interesting part. The interesting part is what's running under the hood at meta.ai. Simon Willison poked around and got the model to dump its entire tool catalog— 16 tools with full parameter schemas . Meta didn't hide them. No jailbreaks required. Just ask. Here's what Meta built that everyone else missed. Code Interpreter, But Better Python 3.9 sandbox with pandas, numpy, matplotlib, scikit-learn, OpenCV, Pillow. Files persist at /mnt/data/ . The killer feature: you can generate an image with media.image_gen , then immediately analyze it with OpenCV in the same container. Generate a raccoon, count its whiskers. Works. Visual Grounding Baked In container.visual_grounding takes an image path and object names, returns bounding boxes, point coordinates, or