OpenAI opens ChatGPT subscriptions to OpenClaw's 3.2M users as Anthropic blocks Claude access to the AI agent platform

OpenAI has integrated ChatGPT subscriptions with OpenClaw, the open-source AI agent framework with 346,000 GitHub stars and 3.2 million users. ChatGPT Plus subscribers can now run autonomous agents via GPT-5.4 for $23/month total. This directly contrasts Anthropic's April decision to block Claude Pro and Max subscribers from using OpenClaw, citing unsustainable compute costs from agent-generated API calls. OpenAI is betting that converting OpenClaw's massive user base into ChatGPT subscribers will outweigh the increased compute burden, effectively making ChatGPT the default model backend for the world's most popular agent framework. The move carries significant security risks, as OpenClaw has suffered multiple critical vulnerabilities including a remote code execution flaw, a marketplace with 824 confirmed malicious entries, and a breach exposing 1.5 million API tokens.