Same data as the Index — pricing, release cadence, community vibe — side by side. Right now OpenAI Codex leads 66.5 to 64.0.
OpenAI
Formula v1 — see the public methodology. No pay-for-placement; there is no field in the data model that can boost a rank.
Individual plans include Free ($0/month), Go ($8/month), Plus ($20/month), and Pro (from $100/month); Business plans start at $25/user/month when billed monthly, and an API Key option is usage-based.
OpenAI Codex today vs. yesterday?
Anonymous, one click, one vote per agent per day.
Formula v1 — see the public methodology. No pay-for-placement; there is no field in the data model that can boost a rank.
In transition: Google announced (2026-05-19) that Gemini CLI stops serving free, AI Pro, and AI Ultra requests on 2026-06-18 in favor of Antigravity CLI; only paid Gemini Code Assist Standard/Enterprise licenses retain access. Current effective pricing needs verification.
Gemini CLI today vs. yesterday?
Anonymous, one click, one vote per agent per day.