… Where open-weight AI models come from is also dramatically different to where closed models originate, as most of the serious releases this year have come out of Chinese labs. Aside from OpenAI's gpt-oss models and Google's Gemma 4 models, there hasn't really been an answer. …
… Just over a month ago, I took to the stand to report that Anthropic had just released Opus 4.7 to the public , and that the new model posted some impressive improvements over the last model. …
… This model is designed to be a version of its mighty Mythos model but without the same cyber security focus. …
… Available now: the most capable public model outside Mythos/Glasswing access. As the LLM wars heat up, some of the biggest players in the AI market are quickly releasing new, more powerful models than the last. …
… The AI lab highlighted that the model is a "notable improvement on Opus 4.6 in advanced software engineering, with particular gains on the most difficult tasks." Despite being less capable than Mythos the model Anthropic decided is way too dangerous to release publicly right now , Opus 4.7 is still… …
… The model, named "Claude Mythos Preview", is touted as the most capable model the company has ever developed, and it's also one that won't be available to the public. …
… The practical implication: give agents a mission, a protocol, and a capable model -- not a pre-assigned role. Now, that doesn't mean there's no value in the coordinator model. Clearly, there is, otherwise the hybrid models wouldn't win out. …
… On Tuesday, June 9th, Anthropic released Claude Fable 5, an updated version of its Mythos AI model with new safeguards related to biology, chemistry, and cybersecurity. This model, created through a collaboration with the US government , was initially available in a limited preview in April. …
… Fable 5 is Mythos, just with a safety harness The smartest model ever released to the public Anthropic has a tiering system for its models: Haiku is a fast grunt working model, Sonnet is a balanced day-to-day model, and Opus is used to handle hard problems. …
… The most persistent point of friction in working with any model relates to everything that has to happen before the model can be useful. …