Claude Sonnet 4.5 is now available to anyone! Read the official announcement: Introducing Claude Sonnet 4.5. Have some nice marketing images, too:

From what I could see as a free user in a browser, the choice is as follows:

  • As a free user, I can still choose between Sonnet 4.5 and Sonnet 4.
  • As a free user, I can choose between Opus 4.1 and Opus 4, limited to 3 queries per week.
  • Nothing else is free, which is dumb in the case of Haiku 3.5, which was the fallback model for free users when Sonnet 3.5 or Sonnet 3.7 experienced a high load. But since Sonnet 4, it cannot be selected by free users anymore.

As stupid as each and every LLM is, I still have 12 of them bookmarked in a browser, and also installed as apps on Android (except for Z.ai, which is a shortcut).

I hope I won’t find Sonnet 4.5 dumber than Sonnet 4. Just saying.