This is a partial quote from an article in the Electronic Newspaper.
https://www.etnews.com/20260701000294
Anthropic is resuming service of its latest artificial intelligence (AI) model, 'Claude 5,' on July 1st (local time).
Anthropic announced on June 30th (local time) that it had reached an agreement with the US government to restore access to Claude 5. The company agreed to address issues raised by Amazon researchers, such as bypassing security measures in 'Claude Mithos,' a publicly available version of Claude 5 that could be vulnerable to cyberattacks. This paved the way for lifting the export ban.
Meanwhile, Anthropic launched a new agent AI model called 'Claude sonnet 5' on the same day. It has improved its ability to plan independently and use tools such as browsers and terminals to perform tasks autonomously.
Performance in key areas of agent performance, such as reasoning, tool use, coding, and knowledge work, has been improved compared to the previous model 'Claude sonnet 4.6.' It offers performance close to that of the higher-end model 'Claude Opus 4.8' at a lower price.
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https://x.com/AnthropicAI/status/2072163884430229756
