Anthropic

OpenAI and Anthropic have almost simultaneously unveiled three new models that mark a new phase in their rivalry. GPT-6 Sol and Luna significantly lower the cost of accessing the GPT-6 family, while Claude Opus 5.5 brings Anthropic’s high-end performance to a more accessible price point. Beyond benchmark scores, competition is now increasingly centered on the sheer amount of work accomplished for every dollar spent.

Anthropic's call to slow down the development of advanced artificial intelligence systems is now openly dividing the industry. While OpenAI supports the idea of a more measured pace, Meta believes that each lab can ensure its own safety. Meanwhile, Mistral AI disputes restrictions that, according to the French company, could only strengthen the position of already dominant players.

After years of accelerated development, some of the most influential figures in artificial intelligence are now calling for greater caution. Sam Altman, Elon Musk, and other industry leaders have backed a plea from Dario Amodei, the leader of Anthropic, arguing for a deceleration of advanced system development to allow more time for safety and regulation.

Anthropic unveils Claude Fable 5.1, a new version of its artificial intelligence model intended particularly for software development, intellectual work, and long-duration autonomous tasks. This evolution improves performance while reducing the cost of certain usages and refining security mechanisms.