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ChatGPT Pro 100 usage limits (Oct 2026)
ChatGPT Pro 100 costs $100/mo. Pro reasoning (GPT-6 Pro / GPT-6 Astra) on a weekly allowance shared with GPT-5.6 Sol Pro.
| Price | $100/mo |
|---|---|
| Messages / usage | Pro reasoning (GPT-6 Pro / GPT-6 Astra) on a weekly allowance shared with GPT-5.6 Sol Pro |
| Reset windows | Weekly allowance for Pro models |
| Context window | total context (Instant); reasoning context |
| Image & video | Unlimited and faster image creation |
| Deep research | Maximum deep research |
| Agents & coding | Longer Codex and ChatGPT Work sessions; Dot always-on agent |
| Last verified | ✓ 2026-10-17 (official) |
Press reports 5x Plus usage; OpenAI help page says only that Pro 200 includes more than Pro 100.
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When the price or limits of ChatGPT Pro 100 change, it goes in the changelog with a date and a source.
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Check the official page anytime: OpenAI pricing ↗
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- ChatGPT deadline
Deadline: ChatGPT student offer (4 free months of Plus)
Eligible US college students must claim by Oct 31, 2026. Source ↗
- ChatGPT deadline
Deadline: Pro 200 grandfathered allowance ends
Eligible Pro 200 subscribers move to the lower allowance after this date. Source ↗
- ChatGPT plan
ChatGPT Pro 500 launches; new Pro 200 subs get a lower allowance
Three Pro tiers: $100, $200, $500. Grandfathered Pro 200 subscribers keep the old allowance through Oct 29, 2026. Source ↗
Sloane: Same $200 price, less usage for new subscribers. That's why I read the fine print.