Test your post on a simulated audience before you create the post.
ReaX puts your script draft in front of thousands of AI viewers in a simulated feed. See the views, likes, comments and follows it will earn, and where people scroll away, while the post is still easy to change.
For creators, agencies and the brands that hire them. Works for Xiaohongshu, TikTok, Instagram and more.
Hook, scenes, captions and the brand segment. A rough draft is enough, before anything is filmed.
Thousands of AI agents built from real user behavior see it in a feed ranked like the real one, then watch, like, comment, save, follow or scroll past.
See predicted views and engagement, where viewers drop, what they will comment, and which version of the script wins.
Post your draft to 10,000 simulated viewers.
Pick a script draft and run it through a simulated feed. ReaX predicts how the post performs, shows where viewers leave and what they will say, and suggests the edit that helps most.
Why not just ask a chatbot?
A chatbot reads your script and offers tips. ReaX posts it to a simulated audience and measures what happens, so you know before you spend a day filming.
How creators test content today
Most creators find out what works only after filming and posting. ReaX moves that answer to the script stage, when changes are cheap.
| ReaX | Film, post and see | Chatbot feedback | Analytics dashboards | |
|---|---|---|---|---|
| Works before you film | Yes, on the script draft | No, you learn after posting | Yes | No, only after posting |
| Predicts views, likes, comments and follows | Yes, with ranges | Real numbers, too late to change | No numbers | Reports past posts |
| Shows where viewers drop off | Second by second, by scene | After posting, if the app shows it | No | After posting |
| Shows what people will comment | Simulated comments and themes | Real comments, after the fact | Guesses | No |
| Models the feed algorithm | Platform-style ranking and tiers | The real one, once per post | No | No |
| Compares script versions | As many as you like | One shot per post | Opinions, no data | No |
| Cost of a wrong guess | Minutes, before any filming | A day of filming and a weak brand deal | Free, but no evidence | The post is already out |
Why it gets better with use
Simulated viewers are built from real engagement patterns for each platform and niche, so they watch, skip and comment the way real audiences do.
Recommendation logic is modeled per platform, from Xiaohongshu's discovery feed to TikTok's For You page, including how posts move between tiers.
When a creator publishes, the real numbers flow back and recalibrate the simulation. Every post makes the next prediction more accurate.
Everything you need to know before you hit record.
Build an audience that behaves like yours, watch the feed decide, rewrite until the numbers work, and show brands what they will get.
- 1Sees it
Second post in her discovery feed on the morning subway. - 2Watches
Recognizes the packed-subway hook and stays through the routine. - 3Weighs
The pitch is long, but she rides the same hot line every day. - 4Acts
Comments “Where is this fan from??”, then taps the product link.
Product preview. Accounts, brands and figures are illustrative.