Open Weight Models

Mistral released a public preview of Mistral Large 4, a 1 trillion-parameter natively multimodal model with 52 billion active parameters. Weights are expected to drop at the end of the month.

Models • Hacker News

StepFun released the open weights for Step 5 Preview, a 600B total parameter model with 27B active and a 1M-token context, along with a technical blog detailing its 92-layer sparse GQA architecture and long-horizon agent training.

AI Models • Pandaily

Ant Group's inclusionAI open-sourced Ling-3.1-flash weights on Hugging Face under the MIT license. The 560B total parameter hybrid-linear MoE model has 25B active parameters per token and a 1M-token context window.

AI Models • Pandaily

Meta and Apple have partnered to launch Muse Spark Open, an open-weight AI model that runs locally on Apple silicon Macs.

AI Models • TechCrunch AI

Meta announced the Muse Spark Open AI model, claiming it's the 'most capable US open-weight model to date' and the first in its class that can run on desktop using two Apple M5 Ultra Mac Studios with the MLX framework. The collaboration marks a rare partnership between Meta and Apple.

AI Models • The Verge AI

Black Forest Labs released FLUX 3 Image Klein, a 5.6-billion-parameter open-weights image model that supports native 4K generation, pixel-precise editing, and generation with up to ten reference images. The model runs on consumer GPUs with just 8 GB of VRAM.

AI Models • The Decoder