Users with monthly subscriptions can still use Claude models, including Opus, Sonnet and Haiku, through these third-party agents. But you'll have to pay via Anthropic's API or use a "pay-as-you-go ...
This change is due to engineering restraints, the Head of Claude Code said.
As of 4 April 2026, Claude Pro and Max subscribers can no longer use their available credits through third-party frameworks ...