Browsing: AI News

xAI’s Grok 4.3 is now generally available on Amazon Bedrock, giving teams that build agents and AI workflows a model that reasons reliably over long inputs. With this launch, xAI joins Amazon Bedrock as a model provider. Grok 4.3 is a model with configurable reasoning effort. It offers strong tool use and instruction following for…

Sakana AI is advancing AI progress by building more capable systems not only by scaling individual models, but by orchestrating many open, specialized models into a form of collective intelligence. The next phase of this work will bring NVIDIA’s open model stack, including NVIDIA Nemotron, into Sakana Fugu, Sakana AI’s multi-agent orchestration system, combining NVIDIA’s…

Universal machine learning force fields (UMLFFs) promise to revolutionize materials science by enabling rapid atomistic simulations across the periodic table. However, their evaluation has been limited to computational benchmarks that may not reflect real-world performance. Here we introduce UniFFBench, a comprehensive evaluation framework featuring the MinX dataset—a diverse collection of 1,500+ mineral systems spanning 85…