Anthropic cut off more than 135,000 OpenClaw instances from Claude subscription access on Saturday, forcing a migration to per-token API billing that costs more at scale and changes the economics of running AI agents.
The cutoff hit at noon Pacific on April 4, 2026 with no advance public notice. VentureBeat first reported that Peter Steinberger, OpenClaw's creator, had lobbied Anthropic alongside investor Dave Morin for a week before the enforcement landed, and secured only a seven-day delay. Steinberger was hired by OpenAI in February.
Anthropic is offering affected users a one-time credit equal to their monthly subscription price, redeemable through April 17, and a 30 percent discount on pre-purchased usage bundles. The company's stated reason: third-party services do not optimize for the same prompt cache hit rates as first-party tools, making the subscription model unsustainable at scale. Growth marketers have estimated that a single OpenClaw agent running for a day can consume $1,000 to $5,000 in API costs under pay-as-you-go pricing.
The cost argument has a problem, though. Anthropic shipped Discord and Telegram integration in Claude Code in the months before the cutoff, the same third-party communication channels that made OpenClaw popular. The company now says subscription tokens cannot be used in third-party harnesses. That rule has technically been in its consumer terms of service since February 2024, as The Register reported, but went unenforced until this week.
Steinberger flagged the contradiction directly on social media, writing that Anthropic had "first absorbed popular features from his software into its own closed system, then shut out open-source alternatives." The Decoder reported his comments. The sequence, what this suggests to us, is platform control more than cost containment, though Anthropic's position is internally consistent on its own terms.
For developers who built workflows around OpenClaw and subscription billing, the practical answer is an API key and per-token pricing. The consolation package softens the landing but does not change the cost structure: the same usage that cost $20 per month under Claude Pro now costs whatever the API says it costs, and at scale, that number is larger. Boris Cherny, Anthropic's head of Claude Code, submitted pull requests to OpenClaw improving cache efficiency before the cutoff, a genuine gesture that does not alter the underlying shift in access terms.
The 135,000 figure comes from Cherny himself, who is also the person selling the API tier displaced users must now purchase. The number is self-reported and carries that context.
Steinberger's move to OpenAI while his creation was being cut off from Anthropic's models is the detail that resists easy framing. He built an agent harness for Claude. Anthropic absorbed its defining features into Claude Code. OpenAI hired him. Those three facts sit next to each other without needing a conclusion drawn, and that is reason enough to lay them out.
