How Reactor announced its Series A on X
12.7M views, ranked 75 of the 1981 launches we track. It reached a very large number of people who did not save it, which is the pattern across almost every launch at this size.
1:52
Today Reactor is coming out of stealth. We’ve raised $59M in Seed and Series A funding, led by @lightspeedvp, with participation from @AmplifyPartners, @wndrco, @Sky9Capital, and @FPVventures. Reactor is the platform for building in the World Model era: the infrastructure that
How it compares
A launch means nothing against no one. These are the launches it is actually comparable to, and where this one sits among them.
| Compared with | Launches | Median views | This one | Rank |
|---|---|---|---|---|
| Funding announcement the same kind of announcement | 247 | 419K | 30.4x | 5 |
| 5K to 25K followers accounts of a similar size | 479 | 582K | 21.9x | 7 |
| Every launch all of them, for scale | 1981 | 688K | 18.5x | 75 |
What this launch shows
Reactor posted this from an account with 10K followers and reached 1339.4 times that many people. The usual multiple for 5K to 25K followers is 50.8.
This one did 26.4 times that. It ranks 7 of 479 launches from accounts that size. Against every launch in the directory it sits at 18.5 times the median of 688K views.
Every response ran below the directory's usual rate: 611 bookmarks, 174 replies, 79 quotes and 209 reposts against 2K likes. The post was seen more than it was acted on, which is common for a launch that reaches past the people who care about the category.
The post opens with “Today Reactor is coming out of stealth”, a first-person opening that the founder-account launches in the directory use most. It carries a 1:52 video against a directory median of 65 seconds. Videos over 90 seconds have a median of 651K views in the directory.
The copy runs 42 words, about the usual length for a launch post here, where the median is 41. There is a link in the body, which costs a post some reach and buys it a place to send people.
It went out on a Thursday. Launches posted on a Thursday have a median of 724K views in the directory, and Friday is the strongest day at 880K.
How to announce a funding round covers this: the round is the news and the post has to turn it into customers and hires. For the next one, read developer marketing strategy: developers try before they read, so the post has to let them.
Virality without conversion is the guide for it: reach that outruns response is the pattern this guide is about. Every launch we track in Developer Tool is on that vertical's directory page.
Questions about this launch
When did Reactor launch?
Reactor posted the launch on X on 28 May 2026.
How many views did the Reactor launch post get?
12,739,039 views at the last read, ranked 75 of the 1981 AI launches Doomers tracks, 1,339 times the account's following.
Who posted the Reactor launch?
@reactorworld, which has 10K followers.
Planning something like this?
We run launches on X for AI companies, with creators who already hold the audience you want reaching.