ChatGPT Plus limits

ChatGPT Plus costs $20 a month with “Unlimited*” messages under OpenAI’s usage policies.

Service: ChatGPT
Plan: Plus
Price: $20/month
Reset window: Shown in ChatGPT when available
Last checked: October 5, 2026

ChatGPT Plus costs $20 a month, billed monthly, according to OpenAI’s Plus help article. The pricing page marks messages on Plus as “Unlimited*”, with the footnote that “usage must be reasonable and comply with our policies”. The help article adds that Plus “may include usage limits such as message caps, especially during high demand”.

Plus is the cheapest plan with GPT-5.6 Sol. OpenAI’s GPT-5.6 article lists the Medium and High reasoning options as included on Plus; Extra High and the Pro models are not. If you reach a GPT-5.6 reasoning limit, ChatGPT may continue with another model, and it shows the reset time when one is available.

Chat and usage limits: Messages: "Unlimited*" (usage must be reasonable and follow OpenAI's policies).
May include message caps during high demand (OpenAI's wording).
GPT-5.6 Sol: Medium and High reasoning included; Extra High and Pro models not included.
On reaching a GPT-5.6 reasoning limit, ChatGPT may switch to another available model.
Image and video limits: Image generation included, including image generation with Thinking. No published cap.
Context and file limits: GPT Instant context window: 54K tokens; input maximum about 40 pages.
GPT Reasoning context window: 256K tokens; input maximum about 320 pages.
Official source: help.openai.com

Questions

How often do ChatGPT Plus limits reset?

ChatGPT shows the reset time when one is available; no fixed reset window is listed for Plus. If you reach a GPT-5.6 reasoning limit, ChatGPT may continue with another model.

Is ChatGPT Plus really unlimited?

OpenAI’s pricing page marks messages on Plus as “Unlimited*”, with the footnote that “usage must be reasonable and comply with our policies”. The help article adds that Plus “may include usage limits such as message caps, especially during high demand”.

Which GPT-5.6 Sol options are included on ChatGPT Plus?

The Medium and High reasoning options are included. Extra High and the Pro models are not.

Sources: each plan’s limits are condensed from the vendor’s own help center or pricing page, linked on the listing with the date last checked. Promptline is not affiliated with OpenAI, Anthropic, Google or Midjourney.