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AI for research: 20 real cases with prompts

20 source-checked cases in Research. Each shows what happened and the prompt.

  • Report global NAND market share with Gemini Deep ResearchImproved promptEvidence: Screenshots or logsFailure

    Asked for a simple report on global NAND market share, Gemini Deep Research returned figures the poster called an incredible failure when compared with Sandisk's investor-day slide and Claude's answer to the same query.

    Gemini Deep Research · Research · Source date:

  • Write a one-page sales brief on a target company with ManusRecreated promptEvidence: Article or interview

    Asked for a B2B sales brief on Google for a tl;dv pitch, Manus produced a one-page brief with revenue, tech stack, key decision makers, recent announcements and a sourced section mapping Google's pain points to tl;dv features; the reviewer says it took two minutes.

    Poster says:About two minutes

    Manus · Research · Source date:

  • Extend a family tree two generations with Claude Code and browser agentsRecreated promptEvidence: Shown on video

    Working from the family's archive scans, Claude Code with memory and the Claude browser plugin cross-checked church books, ship manifests and naturalization records, built a 300-page family wiki, and found two more generations in a day; the family is now checking it for errors.

    Poster says:300-page family wiki

    Claude Code, Claude in Chrome, Perplexity Comet · Research · Source date:

  • Fact-check a viral research-paper claim with Claude in ChromeRecreated promptEvidence: Screenshots or logs

    Asked to fact-check a post claiming Bitcoin would 'surge 500%' based on a study, Claude for Chrome reported in about 2 minutes that the paper wasn't in any academic database, the 500% maths was wrong, a commenter said it was AI-generated, and the paper itself said it wasn't a prediction.

    Poster says:About 2 minutes

    Claude in Chrome · Research · Source date:

  • Find hard-to-locate company tax IDs and addresses with GPT-5 ProEvidence: Described by poster

    Working for over 45 minutes, GPT-5 Pro found correct FEINs for 4 of 6 subsidiaries on the Florida Division of Corporations site and one address via a FINRA BrokerCheck report; the poster double-checked the FEINs.

    GPT-5 Pro · Research · Source date:

  • Summarize English and Tamil YouTube videos with CometImproved promptEvidence: Described by posterPartial

    Comet Assistant summarized English YouTube conversations quickly and well, but on a Tamil discussion it had to play the whole video and made a few mistakes, missing some crucial points.

    Perplexity Comet Assistant · Research · Source date:

  • Test five web tasks with Project MarinerImproved promptEvidence: Shown on videoPartial

    In a test of 5 tasks, Project Mariner found YouTube video view counts, but failed to generate relevant video ideas, couldn't preview HTML properly, refused to log into email and couldn't send emails.

    Project Mariner · Research · Source date:

  • Find links to content with Project Mariner (no links returned)Improved promptEvidence: Described by posterFailure

    Asked to find links to content, Project Mariner found the content but wouldn't return the links, which the poster said made the result not very helpful.

    Project Mariner · Research · Source date:

  • Research family life in a town you're moving to with Gemini Deep ResearchRecreated promptEvidence: Described by poster

    Buying a new house, Dan Fitzpatrick ran Gemini Deep Research and ChatGPT Deep Research on family life in the area he was moving to; he says Gemini 'won this by miles' with a wider range of research, more questioning of sources and a more thorough report, delivered as a Google Doc.

    Gemini Deep Research · Research · Source date:

  • Complete a Qualtrics survey with OpenAI OperatorRecreated promptEvidence: Screenshots or logs

    The poster, a survey researcher, asked Operator to complete a Qualtrics survey they had created; they call the result very promising for Operator but very concerning for survey researchers.

    OpenAI Operator · Research · Source date:

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