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§ Comparisons

ChatGPT Plus vs ChatGPT Pro

Plus is the default paid plan. Pro comes in two tiers that multiply Plus usage and unlock the newest models — and OpenAI changed the top tier's allowance at DevDay on September 29, 2026.

Updated October 7, 2026
§ Quick answer

The short answer.

Stay on Plus ($20/mo): it has unlimited text chats and covers most people. Move to Pro ($100–200/mo) only if you keep hitting Plus limits in Codex or Deep Research, or need GPT-6 Astra.

§ Price at a glance

Prices, side by side.

ChatGPT PlusChatGPT Pro
Price / month$20/mo$100–200/mo
What you get
  • GPT-5.6 Sol — one model with a reasoning-effort slider (Instant & Thinking merged Aug 6, 2026)
  • Unlimited text chats (no weekly caps since Aug 6, 2026)
  • Unlimited GPT-5.4 nano
  • 10 Deep Research / mo
  • Custom GPTs, Codex; Terra/Luna in Work & Codex only
  • $100: 5× Plus usage, 5× Codex, ~50 Deep Research/mo
  • $200: 10× Plus usage for new subscribers (Sep 29, 2026 DevDay change, down from 20×); Operator, adv. voice, 250 Deep Research/mo
  • Subscribers active Sep 22–29, 2026 keep the old 20× allowance, grandfathered through Oct 29, 2026
  • Full GPT-5.6 family + GPT-5.5 pro mode; GPT-6 Astra rolling out (since Sep 3, 2026)
  • GPT-6 Astra weekly chat cap cut 200→100 messages for new $200 subscribers (Sep 29, 2026)
  • Priority access
  • $200 tier sign-up pause (in effect since Sep 10, 2026 due to Astra demand) lifted Sep 29, 2026 at DevDay
UsageBaseline; unlimited text chatsLower tier: 5× Plus (and 5× Codex). Top tier: 10× Plus for new subscribers
Deep Research10 per month~50 (lower tier) or 250 (top tier) per month
ModelsGPT-5.6 SolFull GPT-5.6 family, GPT-5.5 pro mode, GPT-6 Astra (rolling out)

Monthly prices in US dollars before tax, from each vendor's official pricing (US list price; weekly-billed plans converted to a monthly figure). Updated October 7, 2026

§ Verdict

Which one should you buy?

Pick ChatGPT Plus if…

you use ChatGPT daily but rarely run out — unlimited text chats and 10 Deep Research runs a month are plenty for most work.

Pick ChatGPT Pro if…

you live in Codex or Deep Research, want GPT-6 Astra and Operator, or need priority access during busy periods.

Which Pro tier?

Since DevDay, the top Pro tier costs twice the lower one and gives twice the usage (10× vs 5× Plus) for new subscribers — the old 20× allowance only survives for people subscribed Sep 22–29, and only until Oct 29, 2026. New top-tier subscribers also get a weekly GPT-6 Astra cap of 100 messages, down from 200. Unless you need 250 Deep Research runs or Operator, start on the lower tier.

§ FAQ

Common questions, answered.

How much more usage does ChatGPT Pro give than Plus?

The lower Pro tier gives 5× Plus usage and about 50 Deep Research runs a month. The top tier gives 10× Plus usage for new subscribers (it was 20× before September 29, 2026) and 250 Deep Research runs.

Does ChatGPT Plus include GPT-6 Astra?

No — GPT-6 Astra is listed for Pro only. Plus subscribers do get GPT-6.1 Sol and GPT-6 Luna inside ChatGPT Work and Codex.

What is ChatGPT Pro 500?

A tier above Pro launched at DevDay ($500/mo): 25× Plus usage and Astra Ultrafast inference, up to 8× faster in Codex. It only makes sense for heavy Codex users.

§ Keep reading

Related guides.

How we choose: prices come from each vendor's official pricing page and are re-checked every week. We take no affiliate fees, so rankings aren't for sale.