PlansFree; from $8/mo US personal plan prices, billed monthly

Free: Free
Go: $8/month
Plus: $20/month
Pro: From $100/month; $100, $200 or $500 monthly tiers with different usage allowances; US web prices.

Pro has $100, $200, and $500 monthly tiers with different usage allowances.

View current plans

AI & setupAI includedOpenAI account

Where it worksWeb, macOS, Windows, iOS, AndroidWeb, desktop, and mobile apps

Available in the browser, Mac and Windows apps, and iOS and Android apps.

Usage & termsPlan-based tool limitsDeep Research has a separate allowance

Project context comes from files you add or sources you connect; it does not read a computer folder automatically.

Check cited research and consequential calculations against their original sources.

Revise from the material you already have

Supply rough notes or a draft, then develop its structure, wording, length and tone through follow-up conversation. Instructions about audience, format and voice give the revision a defined direction.

This supports the writing around a book as well as the manuscript: summaries, announcements, scripts and correspondence can grow from the same underlying material. These are editable drafts; the author decides which language belongs in the final work.

Keep a project’s context across related chats

Projects collect chats, uploaded files, instructions and connected sources. A book’s reference material and editorial preferences can stay available while individual conversations focus on different outputs.

Chat and ChatGPT Work can use the same project context. Ordinary ChatGPT projects need uploaded or connected sources; direct access to a computer folder belongs to separately configured local projects.

Plan a deeper investigation and inspect its sources

Deep Research can investigate the public web, selected websites, uploaded files and enabled apps. You can edit the proposed plan, follow its progress and redirect the work before reviewing the sourced report.

Reports include citations or source links, an activity history and downloads in Markdown, Word or PDF. Availability depends on plan, region and workspace permissions; the in-product counter shows the remaining research allowance.

Practical access and limits

Read the numbers in a CSV or workbook

ChatGPT can analyze uploaded CSV or Excel files, clean tables, explore patterns and produce charts or reusable summaries. For author operations, that gives royalty or sales exports a conversational entry point without first designing every formula.

Supply column meanings, dates and currencies, then check consequential totals against the original workbook.

Follow a quick answer back to the web

Web search supplies current information with citations when search is used. It suits shorter reference checks and follow-up questions that do not need a full research report.

Choose the amount of task capacity

Free, Go, Plus and Pro offer different access and usage. The current Pro options are $100, $200 and $500 per month; ChatGPT Work and Codex share plan usage.

Feature details & official sources

Purpose and capability information checked 3 October 2026.

Platform and pricing reference: 24 October 2026.

Recorded requirements and limits

Feature access and usage depend on plan, region, account and workspace settings. Deep Research has a separate visible allowance.
Project context comes from files you upload or sources you connect; a ChatGPT project does not automatically read a folder on your computer.

Information may be inaccurate. Confirm details on the official website. Report errors to [email protected].