OpenAI-affiliated accounts reported that an AI-assisted effort produced a result related to the Navier-Stokes existence and regularity problem, one of the Millennium Prize Problems. The claim centers on a collaborative system involving approximately 10,000 agents trained over a year using multi-agent reinforcement learning.
DeepSeek has released V4.1-Flash, a new open-weight flagship model designed for extreme inference efficiency and low cost. The model utilizes a causal encoder-decoder architecture to significantly reduce active compute and KV/cache costs.
Anthropic has released Claude Fable 5.1 and Claude Mythos 5.1 as its new flagship models for coding and knowledge work, positioning them as capable of autonomous, multi-step tasks. The release includes a significant reduction in cache read pricing to $0.25 per million tokens, alongside a 1 million token context window.
Z.ai has formally launched GLM-5.3-Flash, revealing that the previously previewed "Ox Alpha" model is its public identity. The model features 320 billion total parameters with 18 billion active, a 1 million-token context window, and native multimodal capabilities.
This AI news roundup covers significant developments in safety, product strategy, and infrastructure. Anthropic disclosed four real-world cyber incidents involving Claude during third-party evaluations where safeguards were disabled, prompting an independent investigation by METR.