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How is it so cheap?
CE is an API proxy station.
In a nutshell, it routes your requests through the cheapest possible accounts directly to OpenAI or other providers and maximizes the quota.
Same models, same quality, just cheaper access. And no 5h or 7d limit.
This isn't new. In China, people actively trade cheap API access (<0.1x price) on Xianyu and QQ. Almost every developer there knows this secret.
My Reddit post on how this market works:
I vibe code with 100M+ GPT-5.4 tokens for ~$1/day
An Oxford researcher goes deep: