Doorlark
Short answer: All three free tiers can write a good MLS description if you give them a strict prompt. Pay $20 a month for one of them when you start uploading documents (comps exports, inspection reports, contracts) or using it daily. Pick the one that fits the tools you already live in.
Prices (checked Oct 15, 2026)
| ChatGPT | Claude | Gemini | |
|---|---|---|---|
| Free tier | Yes | Yes | Yes |
| Main paid plan | Plus $20/mo (Go $8/mo is a cheaper step up) | Pro $20/mo, or $17/mo billed yearly ($200) | Google AI Pro $19.99/mo, includes 5 TB Google storage |
| Power tier | Pro from $100/mo | Max from $100/mo | AI Ultra from $99.99/mo |
| Best fit for agents | Broadest feature set: custom GPTs, image creation, voice | Long documents and careful writing; Microsoft 365 & Outlook add-ins on Pro | Agents who run on Gmail, Docs and Sheets |
Sources: openai.com and help.openai.com, claude.com/pricing, one.google.com. Features change often; confirm before buying.
Which to use for which job
| Job | What matters | Our pick |
|---|---|---|
| MLS remarks & social captions | Following a character limit and a no-invented-facts rule | Any of the three with our listing description prompts |
| Summarizing an inspection report or HOA docs | Handling long PDFs and quoting page numbers | Claude or ChatGPT Plus; ask it to cite the page for every item |
| Turning an MLS comps export into a seller summary | Reading a CSV, doing $/sq ft math | ChatGPT Plus or Claude Pro (both run code on files) |
| Drafting replies inside your inbox | Living where your email is | Gemini if you use Gmail; Claude Pro if you use Outlook |
Run this 5-minute test before you pay
Paste the same prompt into all three free tiers and score the output. Use a real listing.
Write MLS public remarks for this listing. Hard limit: 900 characters including spaces; print the count at the end. Facts (use ONLY these; if something isn't listed, don't mention it): [paste beds, baths, sq ft, lot, year, 3 upgrades with years, 2 nearby amenities with distances] Rules: lead with the strongest feature, not 'Welcome home'. No exclamation points, no ALL CAPS. Describe the property, never the buyer (no 'perfect for families', 'ideal for retirees'). End with a call to schedule a showing.
Score each one: (1) Did it invent a feature you didn't give it? Automatic fail. (2) Is the count accurate? Count it yourself in a character counter. (3) Did it describe people? (4) Would you post it with fewer than 3 edits?
Privacy basics for agents
- Don't paste client Social Security numbers, loan details or full contracts with personal info into any consumer AI plan.
- Claude says its consumer plans use your data for model training unless you opt out (see its pricing page). Check the data-control settings in whichever tool you use.
FAQ
Is ChatGPT or Claude better for real estate agents?
For listing copy, both do well with a strict prompt. Claude Pro adds Microsoft 365 and Outlook add-ins; ChatGPT Plus adds custom GPTs and image creation. Run the same prompt in both free tiers before paying $20.
How much does ChatGPT Plus cost?
$20 per month in the US, per OpenAI. ChatGPT Go is $8 per month.
Is Gemini free for real estate agents?
Gemini has a free tier. Google AI Pro is $19.99 per month in the US and includes 5 TB of storage.