Anthropic on Friday launched Opus 5, its latest AI model that the startup says nears the capabilities of its more powerful cousin Fable 5 at half the price.
The San Francisco-based lab said the new Claude AI model was well suited for daily office and computer programming tasks.
Nvidia in talks with OpenAI to guarantee $250 billion financing for data centre: Report In an interview with Reuters, Anthropic product leader Dianne Penn said the release, more efficient than May’s Opus 4.8, reflected a rapid pace of development.
“We’re building and continue to consistently deliver frontier intelligence and bring that as accessibly as possible with every model generation,” said Penn.
In testing, Opus 5 was less capable of exploiting cyber vulnerabilities than Anthropic’s top-shelf AI, so its related safeguards are less restrictive than Fable 5’s.
Opus 5 was also less susceptible to being tricked into misuse than Anthropic’s other current models, the startup said.
After OpenAI-Hugging Face AI agent hack, U.S. lawmakers push for control Released in June, Anthropic’s Fable 5 was temporarily unavailable following U.S. concerns that its capabilities could be diverted to foreign military intelligence.
Users should pick Opus 5 for value and Fable 5 for “days-long, very autonomous projects,” Penn said.
Asked about the Kimi K3 “open” model from China-based Moonshot, which the U.S. accused of freeloading off Anthropic, Penn said it “remains to be seen” how open-weight models generally perform on complicated real-world projects that users ask Claude to tackle.
Open-weight models allow users to download, run and customise the virtual brains of an AI, unlike proprietary models.
