Codex Review May 10, 2026: Free CLI vs $200 Cloud Trap
I paid $200 a month for OpenAI Codex and didn’t open it for nine days. Here’s what I found behind the icon and which plan is actually rational in May 2026.
I paid $200 a month for OpenAI Codex and didn’t open it for nine days. Here’s what I found behind the icon and which plan is actually rational in May 2026.
$24.99 a month for Genspark Plus, $200 for ChatGPT Pro. 110 minutes head-to-head, plus the privacy default the marketing copy hides. Verified May 2, 2026.
We paid for ChatGPT Pro and tested the $200 tier from the inside. Across 27 false-premise traps in five languages it fabricated nothing, yet its most expensive mode proved no more accurate than the cheaper one, only slower. The premium buys capacity and depth, not fewer factual errors.
Anthropic and OpenAI converged on identical $20, $100, and $200 tiers in April 2026. The pricing pages mirrored. The math did not. ChatGPT Pro $100 burned through in 24 hours. Claude Max 5x held at 91% on parallel work. This review unpacks the Capacity Asymmetry between the two $100 tiers. Four months Claude, six months ChatGPT. The wrong question is “Claude vs ChatGPT.” The right question is which envelope fits your work.
We tested all three so you don’t have to.