Open Weight Model

GLM 5.3 autonomously built working Firefox exploits in under 48 hours for about $1,000 each: Epoch AI researchers reported that the open-weight model GLM 5.3 turned public security fixes into working Firefox exploits in under 48 hours. It autonomously compromised six Firefox releases for about $1,000 in API fees each without triggering safeguards from any provider tested.

Artificial Intelligence • The Decoder

Mistral releases Le Chonk, a trillion-parameter model trained in Europe: Mistral released the weights for Large 4, or 'Le Chonk,' a trillion-parameter model trained entirely in Europe. It claims the model beats open rivals at coding, and independent testing found it fast and fairly cheap. It scored 26 versus 32 for DeepSeek V4.1 Flash and GLM-5.3.

AI Models • The Decoder

MiniMax releases open weights for 428B-parameter M3.1 Flash model: MiniMax released open weights for its M3.1 Flash model on October 23, making the model available to developers. The mixture-of-experts model has approximately 428 billion total parameters with 23 billion activated per token. It supports text, image and video inputs and a context window of up to 1 million tokens.

AI Models • TechNode

Moonshot unveils Kimi K3.1 Pro, 3T-class open-weight model with 1M-token context: Moonshot unveiled Kimi K3.1 Pro, a 3T-class open-weight model with a 1M-token context window, and K3.1 Pro Highspeed. The company says full weights will be released by Nov. 4.

AI Models • Techmeme