Codex comes with ChatGPT Plus at $20 a month. Free and Go ($8) get a limited version in the desktop app. Pro costs $100, $200 or $500 a month and has no five-hour limit. Business is $25 per user a month, or $20 billed yearly.
| Plan | Monthly | Yearly (per month) | Usage | Seats | Best for |
|---|---|---|---|---|---|
| in ChatGPT FreeSubject to rollout | $0 | — | — | 1 | Quick tasks |
| in ChatGPT GoSubject to rollout | $8 | — | — | 1 | Light use |
| in ChatGPT Plus | $20 | — | 15–160 Sol messages / 5 h | 1 | Daily solo coding |
| in Pro $100 | $100 | — | No 5-hour limit | 1 | Heavy coding |
| in Pro $200 | $200 | — | No 5-hour limit | 1 | All-day agent use |
| in Pro $500 | $500 | — | No 5-hour limit | 1 | Maximum speed |
| Business | $25 /seat | $20 /seat | Plus limits per seat | 2–any | Teams |
| Enterprise & EduFlexible pricing scales usage with credits | Custom | — | — | Any | Large companies |
| Model | Input | Output | Cached input | Context |
|---|---|---|---|---|
| GPT-6 Astra | $10.00 | $50.00 | $1.00 | — |
| GPT-6.1 Sol | $2.00 | $10.00 | $0.10 | — |
| GPT-6.1 Terra | $1.00 | $5.00 | $0.05 | — |
| GPT-6 Luna | $0.10 | $0.50 | $0.01 | — |
Subscription or API? Codex in ChatGPT plans covers interactive use; scripts and CI pay the OpenAI API per token.
Official limits from the vendor's own pages.