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The conflict between open-weight and closed large language models is escalating, with Microsoft releasing a policy statement supporting open weights as a net good for US AI leadership, while Trump administration official…
1,134 employees from OpenAI, Anthropic, Google, and Meta signed an open letter titled 'Pacing the Frontier' asking the US government to develop tools to slow frontier AI development if needed, triggered by OpenAI's rogue…
Anthropic's Claude Opus 5, shipped July 24, 2026, forced the team at Every to delete their existing skills and start from scratch because prompts and scaffolding built for older models caused the new model to argue with …
An engineer demonstrated that the OpenAI Python SDK can be used to call Anthropic's Claude model by pointing the base_url to Anthropic's compatibility endpoint. The post explains the conceptual separation between SDK, AP…
Anthropic's per-model prompting pages serve as a maintenance list for instruction files like CLAUDE.md, which become stale after each model release because new models interpret prompts more literally, causing perceived r…
Chinese AI companies are using a technique called distillation to copy American AI models, with Anthropic and OpenAI accusing firms like Alibaba's Qwen team of stealing intellectual property. Anthropic deployed spyware t…
OpenAI and Anthropic are escalating a price war for Y Combinator startups, with both now offering $500,000 in free AI computing credits. OpenAI adjusted its earlier equity-for-credits deal after Anthropic matched the fre…
Anthropic and Microsoft announced general availability of Claude models in Microsoft Foundry, but European enterprises cannot deploy them due to data residency restrictions. Microsoft's documentation confirms that Anthro…
Anthropic launched Claude Science, an AI workbench for scientists, in beta on Tuesday. The tool runs locally on Mac, Linux, or remote machines and aims to accelerate scientific research by integrating tools and automatin…
Hugging Face CEO Clem Delangue criticized Anthropic's restricted release of its Claude Mythos model, arguing that labeling AI as 'too dangerous to release' serves as effective enterprise marketing rather than a genuine s…
China blacklisted 56 American companies in retaliation for Washington's export controls on Anthropic's AI models, escalating the AI trade war into a mutual conflict. Anthropic revealed the trigger for its export ban was …
A US export control order forced Anthropic to suspend access to its Claude Fable 5 and Mythos 5 models on June 12, 2026, marking the first government-forced takedown of a publicly deployed frontier model. The shutdown, t…
The US government ordered Anthropic to globally recall its Fable 5 and Mythos 5 AI models three days after launch, citing national security concerns based on a verbal jailbreak claim from a competitor. Anthropic disagree…
Boris Cherny, the head of Claude Code at Anthropic, said he has not written a line of code by hand in eight months, relying entirely on the AI tool he helped build. Cherny made the remark during a fireside chat at the Fo…
Anthropic closed a $65 billion Series H funding round at a $965 billion valuation, surpassing OpenAI to become the world's most valuable private AI startup. The company also released Claude Opus 4.8 and launched Dynamic …
Microsoft and OpenAI have amended their seven-year partnership, ending exclusivity clauses that allowed each to work only with each other on AI development and cloud services. Under the new terms, OpenAI can now run its …
Scott Aaronson, a theoretical computer scientist at UT Austin, wrote in an October 7 blog post titled "The Mathocalypse" that several AI companies have begun using their newest internal models to attack "important crypto…
Anthropic's Claude Haiku 5.5 is now available on Amazon Bedrock and Claude Platform on AWS, the company announced, with pricing around 75 percent lower than Claude Haiku 4.5 for most tasks. Anthropic describes Haiku 5.5 …
OpenAI and Anthropic model safeguards are flagging routine aerospace, robotics and security work as risky, costing developers time and forcing them to abandon chats or switch models, according to developer accounts repor…
The Federal Trade Commission opened an investigation on September 30, 2026 into Anthropic, OpenAI, METR and other frontier AI labs over potential consumer harms from their technology, with plans to issue civil investigat…