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Chinese startup Moonshot released Kimi K3, a 2.8-trillion-parameter open-weight model it says rivals Anthropic’s Claude, as the US-China AI gap narrows.
SpaceXAI’s Grok 4.5 tied GPT-5.6 Sol for first on the SWE-Atlas-QnA coding benchmark, a narrow win that highlights the model’s real edge: efficiency and low cost.
SpaceXAI released Grok 4.5, a coding and agentic model trained jointly with Cursor that undercuts rivals on price and token use, though it trails Fable 5 on benchmarks.
Anthropic released Claude Sonnet 5, its most agentic mid-tier model, which it says approaches the pricier Opus 4.8 on many tasks at a lower per-token cost.
The US Commerce Department lifted export controls on Anthropic’s Claude Fable 5 and Mythos 5, ending an 18-day standoff and restoring the models globally from July 1.
As Washington limits Anthropic’s and OpenAI’s top models on security grounds, critics warn the restrictions are handing momentum to Chinese open-weight rivals like GLM-5.2.
Anthropic launched Claude Tag, a Slack agent teams summon with @Claude to delegate tasks, with shared channel memory and the ability to act on its own.
Anthropic has released Claude Opus 4.8, introducing performance improvements, stronger reliability, and new user controls. The launch also brings dynamic workflows for Claude Code and configurable effort levels across Claude applications.
Anthropic has raised a $65 billion Series H round at a $965 billion valuation, surpassing OpenAI to become Silicon Valley’s most valuable AI company.