Codex Pro 500 ($500): limits, Ultrafast and pricing
Verified 2026-10-26 against OpenAI Help and Codex pricing. Every value links to its source. OpenAI publishes no per-tier allowance numbers.
Short answer
Pro 500 is $500/month and is the only Pro tier with Ultrafast (GPT-6 Astra Ultrafast and GPT-6.1 Sol Ultrafast). Ultrafast uses included allowance at 8x Standard, then credits at 6x. Pro plans currently have no five-hour limit; weekly limits may also apply. OpenAI ranks Pro 500 as the highest included usage of the three Pro tiers.
| Fact | Value | Source |
|---|---|---|
| Price | $500/month | OpenAI checked 2026-10-26 |
| Billing | Monthly only (no annual) | OpenAI checked 2026-10-26 |
| 5-hour limit | Pro plans currently have no five-hour limit | OpenAI checked 2026-10-26 |
| Weekly limit | Weekly limits may also apply (size not published) | OpenAI checked 2026-10-26 |
| Ultrafast | Included (GPT-6 Astra Ultrafast and GPT-6.1 Sol Ultrafast) | OpenAI checked 2026-10-26 |
| Ultrafast note | Uses included allowance at 8x Standard, then credits at 6x | OpenAI checked 2026-10-26 |
| Fast mode burn | 2.5x the Standard rate of included allowance | OpenAI checked 2026-10-26 |
| Models (verified) | GPT-6.1 Sol and GPT-6.1 Terra in Work and Codex | OpenAI checked 2026-10-26 |
| Relative usage | Highest of the three Pro tiers | OpenAI checked 2026-10-26 |
| Credits after included | Eligible features can continue on purchased credits | OpenAI checked 2026-10-26 |
| Support resets | Support cannot reset ChatGPT or Codex limits | OpenAI checked 2026-10-26 |
Limits on these plans change without notice. Get one email when they do.
Ultrafast rates
For GPT-6 Astra and GPT-6.1 Sol, Ultrafast "uses your plan's included usage first at 8× the Standard rate for the selected model, then draws from your credit balance at 6× the Standard credit rate after that allowance is used."
source · also Codex pricing · checked 2026-10-26Related
FAQ
Does Codex Pro 500 have a five-hour limit?
Pro plans currently have no five-hour limit. (OpenAI Codex pricing, checked 2026-10-26)
Which Pro plan includes Ultrafast?
Among Pro plans, Ultrafast is available only on Pro 500. (OpenAI Help, checked 2026-10-26)
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