ChatGPT deep research
Long autonomous research runs that produce a cited write-up. Useful for scoping a topic before you commit to reading.
What ChatGPT deep research is best for
The categories ChatGPT deep research is listed in, and how strong a fit it is in each.
Search, Research & Academics
Web research, deep research, books, academic papers, citations, news, fact-checking.
Strong fit
ChatGPT deep research’s biggest strengths
Search, Research & AcademicsLong autonomous research runs that produce a cited write-up. Useful for scoping a topic before you commit to reading.
Where it may not be the best fit
Search, Research & AcademicsWeb-first rather than database-first. Verify every citation before it enters a bibliography. There is no separate deep research plan: more runs come with a ChatGPT subscription.
ChatGPT deep research pricing
ChatGPT deep research has a free plan. A small number of deep research runs on the free ChatGPT tier
FreeA small number of deep research runs on the free ChatGPT tier
$0ChatGPT PlusFar more deep research runs, advanced models and Codex. Deep research is part of the ChatGPT plans, not sold separately
$20/moChatGPT ProOr $200/month for the highest limits
$100/moChatGPT Business$100 or $125 for a premium seat with 5x the usage
$25/mo · $20/mo yearlyChecked by hand on 4 September 2026. Prices change often, so confirm on the provider’s own page before spending.
Who makes ChatGPT deep research
The clearest example of why single-value valuation fields are dangerous. Three credible outlets carried three different marks within five months, partly because they were pricing different rounds and partly because secondary-market pricing diverged from primary. Shown here as a conflict rather than resolved.
CompanyOpenAI
Founded2015
Based inSan Francisco, US
SectorFoundation models
ModelGPT-5 series
StatusPrivate
Primary usersConsumer, Enterprise, Developers
Free planYes
Valuation$852B (2026-07)
InvestorsMicrosoft, Thrive, SoftBank, Amazon, MGX
ComputeMicrosoft Azure, Oracle, CoreWeave
Public listingFiled; leaning 2027
Also from OpenAI: ChatGPT, ChatGPT image generation.
Best alternatives to ChatGPT deep research
Tools that do comparable work, best fit first, drawn from the catalogue rather than hand-picked. Every one is listed whether or not there is money in it for us.
Connected Papers
Free
Builds a similarity graph from citation data rather than from a language model, so nothing in the output is generated and there is nothing to hallucinate.
View Connected Papers →Consensus
Free
Searches published papers and tells you how many of them support a claim, which turns a yes-or-no question into a count you can inspect.
View Consensus →Elicit
Free
Searches actual papers and extracts findings into a table you can check, one row per study, rather than answering in prose.
View Elicit →EvidenceHunt
Free
Scoped to clinical evidence and built with practising clinicians, so the filters match how medical literature is actually appraised.
View EvidenceHunt →Gemini Deep Research
Free
Runs a multi-step search across dozens of sources and returns a structured, referenced report. Strong first pass on an unfamiliar field.
View Gemini Deep Research →Gemini Notebook
Free
You upload the sources and it answers only from them, linking every sentence to the passage it came from. The strongest verification pattern here.
View Gemini Notebook →ChatGPT deep research by job
Where ChatGPT deep research sits in the wider category pages.
Best AI for Research
Strong fit — Web research, deep research, books, academic papers, citations, news, fact-checking.
Questions about ChatGPT deep research
Is ChatGPT deep research free?
Yes — A small number of deep research runs on the free ChatGPT tier. The cheapest paid tier is ChatGPT Plus, at $20/mo.
What is ChatGPT deep research best at?
Long autonomous research runs that produce a cited write-up. Useful for scoping a topic before you commit to reading. It is listed under Search, Research & Academics.
What should I watch out for with ChatGPT deep research?
Web-first rather than database-first. Verify every citation before it enters a bibliography. There is no separate deep research plan: more runs come with a ChatGPT subscription.
What are the alternatives to ChatGPT deep research?
6 tools do comparable work: Connected Papers, Consensus, Elicit, EvidenceHunt, Gemini Deep Research, Gemini Notebook. 6 of them have a free plan.
How current is this ChatGPT deep research pricing?
Checked by hand on 4 September 2026. Prices change often — confirm on the provider's own page before spending.