The free AI buffet may be coming to an end, at least for OpenClaw and its fellow agentic harnesses.
On April 4, Anthropic informed users of its Claude Pro and Claude Max service that they would be billed separately for using third-party harnesses, initially OpenClaw, with their subscriptions.
“Our subscriptions weren’t built for the usage patterns of these third-party tools,” wrote Claude Code head Boris Cherny on X.
The move is the first among the major AI frontier labs in terms of limiting usage for external agentic tasks, not surprising as the AI frontier companies have thus far been heavily subsidizing their services to gain as much market share as possible.
The popularity of third-party harnesses, such as OpenClaw, might be proving to be too much for AI companies to bear.
The End of Agentic Subsidies
With Claude, users can still use their third-party harnesses, the e-mail stated, but would be billed separately from their Pro’s $20/month or Max’s premium $200/month tiers. Harnesses would be billed on a pay-as-you-go basis.
Users must turn on the extra usage option in their account settings, if they wish their harnesses to be recognized by Claude.
OpenClaw will be the first harness to be specifically billed against, with options for other harnesses to be introduced in the future. NanoBot, Eigent, PicoClaw? Your days may be numbered.
To help users adjust to the new pricing, Anthropic is offering a one-time credit equal to the monthly subscription price of the user’s plan. Discounts of 30% are also available when users pre-purchase bundles of extra usage. The company has not specified how much the additional pay-as-you-go use will cost.
Agentics Need More Computation
Subscription services of any sort depend on undersubscription. Gyms are built around the probability that their members won’t all show up at the same time, and that a certain percentage won’t show up at all. Likewise, AI services assume all users won’t use their allotted tokens every month.
OpenClaw, and other harnesses, break that assumption. Unlike users occasionally hammering away on the CLI, harnesses were designed to run continuously on a loop. And as users get more sophisticated in their usage, they learn how to run multiple harnesses in parallel.
Tech analyst Aakash Gupta estimated that OpenClaw running 24 hours can burn up to $2,000 of API resources for Anthropic.
“Anthropic was eating that difference on every user who routed through a third-party harness,” Gupta wrote on X.
Anthropic itself has estimated that the average developer on Claude Code uses between $100-$200 in API tokens per month.
Closing Out the Competition
Not everyone agrees that Anthropic restricted usage strictly for financial reasons, however.
Most notably, OpenClaw creator Peter Steinberger has voiced concerns that Anthropic created the additional pricing to get customers to use the agentic capabilities in its own CLI instead.
“Funny how timings match up, first they copy some popular features into their closed harness, then they lock out open source,” he wrote on X.
He also noted that other AI subscription services readily support OpenClaw without additional fees. For instance, OpenAI allows third-party harnesses with its Codex agentic platform (Note: Steinberger now works for OpenAI).
“I know it sucks. Fundamentally engineering is about tradeoffs, and one of the things we do to serve a lot of customers is optimize the way subscriptions work to serve as many people as possible with the best model,” Cherny wrote on X.
Cherny also wrote that Claude’s internal services run more efficiently than external harnesses, thanks to advanced optimizations. He said he submitted a few patches to the OpenClaw project to improve its cache hit rate with Claude, which might help keep user costs down.
