Gemini CLI vs OpenAI Codex
Prices and limit rules side by side. Use the calculator to see which is cheaper for your token volume.
Gemini CLI
| Plan | Price (monthly) | Notes | Status |
|---|---|---|---|
| Paid Gemini API key | $0 | Pay per token (see Gemini API prices) | verified |
| Code Assist Standard | — | Seat price not verified | unverified |
| Code Assist Enterprise | — | Seat price not verified | unverified |
Source: https://docs.cloud.google.com/gemini/docs/quotas · Last verified 2026-10-13
Limits
Gemini CLI + Code Assist agent mode share a quota: 1,500 requests/user/day (Code Assist Standard), 2,000 (Enterprise). One prompt can trigger several model requests. Otherwise metered per token via a paid Gemini API key. The old personal-Google-account free tier (1,000 req/day) is reported discontinued since June 18, 2026; the GitHub README still advertises it.
OpenAI Codex
| Plan | Price (monthly) | Notes | Status |
|---|---|---|---|
| Free / Go | $0 | Limited Codex access (Go price not shown on official page text) | verified |
| Plus | $20/mo | Codex on web, CLI, IDE, iOS | verified |
| Pro 100 | $100/mo | No 5-hour limit | verified |
| Pro 200 | $200/mo | More usage than Pro 100 (source: help.openai.com/en/articles/9793128) | verified |
| Pro 500 | $500/mo | Highest usage; Ultrafast mode | verified |
| Business (Standard seat) | $25/mo | $20/mo annual; source openai.com/api/pricing (business page) | verified |
Source: https://learn.chatgpt.com/docs/pricing · Last verified 2026-10-13
Limits
Plus: rolling 5-hour window plus possible weekly limits. OpenAI's estimate for Plus is 15-160 local GPT-6.1 Sol messages, 5-45 GPT-6 Astra, or 350-3,000 GPT-6 Luna messages per 5 hours. Pro plans currently have no 5-hour limit (weekly limits may apply). Credits can extend usage; Codex CLI can also run on an API key at API prices.