Anthropic recently announced that starting April 4, 2026, subscribers to Claude Pro and Max plans will no longer be able to use their subscriptions to run third-party AI agents such as OpenClaw. This move is driven by the heavy strain these external tools place on Anthropic’s compute and engineering resources. While users can still utilize Claude models via a pay-as-you-go “extra usage” billing system or API, the unlimited usage under current subscription tiers will end. Anthropic cites technical inefficiencies with third-party services bypassing optimized prompt caching. To mitigate the impact, existing customers receive a credit equal to their monthly fee and discounts on additional usage bundles. The shift has sparked mixed reactions, with some developers frustrated by increased costs and constraints, while others see it as a necessary step for sustainable service. Concurrently, OpenAI is positioning itself as a more flexible alternative, especially for power users relying on agentic tools.
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