A case study is a customer story, not a place for the model to sound successful. Put the interview notes in Notion AI. Draft in Claude or ChatGPT from those notes only. Gamma can turn the approved text into a short visual leave-behind. If a metric is not in the notes, it does not go in the draft. The customer approves quotes before you publish.
Key takeaway: Notes first. Draft second. No new numbers. The customer approves any sentence presented as their words, and a person on your team publishes only after that yes.
Research reviewed: October 30, 2026. This is desk research by the AI Savr editorial team. We did not run a private lab test, and we did not invent scores, traffic numbers, or hands-on results. Confirm live prices on the vendor page before you buy.
What may an AI case study include?
The customer's situation, what they used, and what they said, taken from an interview or an email they sent. Quotes stay inside what they actually said. Numbers stay inside what they actually reported. The model may order the story and tighten phrasing you then show back to them. It may not invent a revenue figure, a time saved, or a percentage. Approval covers both the quote and any number beside their name.
| Job | Tool to open first | Human step |
|---|---|---|
| Hold the interview notes | Notion AI | Mark quotes versus your paraphrase |
| First narrative from the notes | Claude | Delete any fact not in the notes |
| A shorter public version | ChatGPT | Keep the same facts |
| A visual leave-behind | Gamma | Build it only after approval |
Where each case-study tool fits
Notion AI for the source notes
Notion AI is where the interview lives. Keep the raw notes, label quotes, and label anything you paraphrased. Notion AI can tidy headings or list open questions. It should not be asked to fill a result the customer never gave.
Choose it when: the interview exists and the team needs one page that is the source of truth.
Leave it when: you have no notes and want a case study from a logo alone.
Price and access: Confirm Notion AI access on Notion's site for your plan. This guide does not quote a workspace fee.
A real use: Paste the interview. Ask for a list of statements that are direct quotes and a list of gaps. Leave the gaps blank.
Claude for the narrative draft
Claude turns long notes into a case-study shape: context, what changed, and the customer's words. Instruct it to use only the notes and to mark any sentence it cannot trace. You still read it. Claude does not have permission to speak for the customer.
Choose it when: the notes are long and you need a first narrative a reviewer can mark up.
Leave it when: the notes do not exist yet. Drafting first creates fake specifics.
Price and access: Read current Claude plans on Anthropic's site. Do not copy a monthly figure from a roundup.
A real use: Paste the notes and ask for a draft that quotes only marked lines. Reject the draft if a metric appears that the notes do not contain.
ChatGPT for a shorter public cut
ChatGPT is the seat for a shorter page or a pull-quote block once Claude's draft matches the notes. Tell it the approved facts are closed. It may shorten. It may not add a result, a logo treatment, or a quote.
Choose it when: an approved long draft needs a shorter public version.
Leave it when: you use it to interview an imaginary customer.
Price and access: Confirm ChatGPT plans on OpenAI's site. This article does not quote a fee.
A real use: Paste the approved draft and ask for a half-length version. Check that every number and every quotation mark survived from the approved text only.
Gamma after the customer says yes
Gamma builds a short visual document from text you paste. Use it after the customer has approved the words, so the slides do not become a second, looser story. Gamma does not create permission to publish.
Choose it when: you need a leave-behind and the copy is already approved.
Leave it when: you generate slides from a prompt like the customer name plus 'impressive results.'
Price and access: Gamma lists plans on its site. Read them before you buy. This guide does not quote a credit or a fee.
A real use: Paste only the approved narrative. Export a short deck. Read every number on the slides against the notes before you send the file.
A case-study draft you can repeat
Five moves keep every quote and every number inside what the customer gave you.
- Store the notes. In Notion, separate direct quotes from your paraphrase. List metrics only if the customer stated them.
- Draft from the notes only. Claude writes the narrative. The instruction is to add nothing. ChatGPT may shorten an approved draft later.
- Strike new facts. Any figure, timeline, or quote that is not in the notes comes out, even if it sounds plausible.
- Send it to the customer. They approve quotes and any number next to their name. No approval, no publish.
- Then make the visual. Gamma uses the approved text. A person on your team publishes or sends the piece.
How case-study drafts invent success
Models add percentages, revenue, and time saved because case studies often contain them. Those inventions are not usable. They also smooth a quote into a stronger endorsement than the customer gave. A logo on a slide is not consent. Legal or brand review on the customer side can still say no after your draft is clean. Wait for that yes.
What a proof owner should standardize
No case study starts without notes in Notion AI. Claude drafts. ChatGPT shortens. Gamma waits for approval. The customer approves quotes and metrics in writing. Your editor publishes. A sales deck may link to the case study only after that approval, not to an unsent draft.
Questions worth asking before you buy
Ask where customer interviews are stored and whether prompts train models on your plan. A case-study interview is the customer's information. If you cannot delete it, do not paste it.
For companies that need more than a subscription
If customer approval has to be recorded in a CRM before the story is published, talk to AI Savr about a custom AI agent. This page does not quote a build price. Email approval plus a locked Notion page is enough for many teams.
If an off-the-shelf tool cannot meet your data, approval, or security rules, talk to AI Savr about a custom AI agent. Use the directory to compare live tools first, and vendors can submit a product.
Frequently asked questions
Can AI write a case study without customer notes?
It can produce prose, and you should not publish it. Start from an interview or an email the customer sent.
What if the model adds a percentage?
Delete it unless that figure is in the notes and the customer approves it beside their name.
Who approves quotes?
The customer. A sentence in quotation marks needs their yes before you publish.
When do I use Gamma?
After the words are approved. The visual should not introduce a new claim.
Which model drafts the long version?
Claude from the notes. ChatGPT is the shorter public cut of an approved draft.
Does this page list prices?
No. Confirm Notion, Claude, ChatGPT, and Gamma on each vendor's site.