SemiAnalysis's hands-on testing claims Anthropic is running an A/B gray test on Claude subscription quotas
SemiAnalysis ran an Opus 5.5 agent workload on two identical $200 Max 20x accounts and found that one account's 5-hour window quota was 2.076 billion tokens, 19% higher than the other account's 1.74 billion tokens, but the weekly total quota fell from 6.579 billion tokens to 5.266 billion tokens, a 20% shrinkage. Claude Code technical staff member Lydia Hallie said the quotas were not adjusted and suggested users run the feedback command to submit their ID for investigation; core developer Boris Cherny said the team is urgently investigating. The article also mentions that OpenAI previously halved the quota of its $200 Pro plan and introduced a $500 tier, as well as DeepSeek's open-source inference framework DeepInfer and its deployment practice of 155 trillion tokens per day of throughput on a single cluster.
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