What time do AI companies launch? We timed 206 launches
If you cover AI, you know the feeling: the big launch drops just as your day is ending, or just as it starts. We wanted to know if that's a real pattern, so we collected six months of AI launch news, from 21 April to 19 October 2026, and counted when each launch first appeared.
Lunchtime in New York, evening in Europe
The pattern is sharp. Of the 200 launches with a known time, 128 broke between 11 am and 5 pm Eastern. The single busiest hour, 1 pm to 2 pm Eastern, held 37 of them, nearly one in five. Add the hour before and you have 62 launches, 31%, arriving between 9 and 11 am Pacific, the start of the working day in San Francisco and Mountain View.
Very little ships overnight in the US. Only 10 launches, 5%, broke between 10 pm and 6 am Eastern, the European morning. For anyone in Europe, that means the news you need to react to usually lands after dinner.
It's not just when news sites publish
A fair objection: tech sites publish in US working hours anyway. So we compared. Across all 2,514 items with a time in the same feeds, 51% landed in that window. Launches: 64%. The gap is wider on the companies' own blogs. On OpenAI's and Google's blogs, 74% of launch posts went up between 11 am and 5 pm Eastern, against 46% of all their posts. The window looks chosen, not a side effect of when news sites work.
Tuesday is launch day
Tuesday carried 62 of 206 launches, 30%, while it carried 24% of all the news in our feeds. Tuesday to Thursday together held 73%. Mondays were quiet, with 20, and weekends nearly empty: 10 launches, 5%, against 9% of all news. If an AI company wants your attention, it shows up midweek.
Most days, nothing ships
On 97 of the 182 days, nothing launched at all. The rest came in bursts: the six busiest days carried 46 launches, 22% of the total. Google I/O on 19 May was the peak, with 12 launches in one day, from Gemini 3.5 to Gmail Live. On 9 September, Apple confirmed the release dates for iOS 27 and macOS 27 and said Siri AI would launch that month: 11 launches. Of the months we have complete data for, September was the busiest, with 58, against 37 in May and 41 in August. Autumn brought ChatGPT dots, Siri AI and GPT-6.
By company, Google had the most launches in our count (70), then Apple (57), OpenAI (37), Anthropic (21) and Meta (11). Read that with care: our sources include Google's and Apple's own blogs and four sites that mostly cover those two.
How we counted
We rebuilt what 15 news feeds carried each day from 21 April to 19 October 2026 out of Wayback Machine snapshots: the OpenAI and Google blogs, Google DeepMind, Apple Newsroom, 9to5Mac, 9to5Google, TechCrunch, Engadget, AppleInsider, Lifehacker, TestingCatalog, Simon Willison, The Verge, MacStories and The Decoder. A keyword filter kept 2,715 items about AI and the apps around it.
We sorted every item against a written rubric, using AI models. A launch is something new that ordinary people can use now or within weeks, in an AI assistant (ChatGPT, Claude, Gemini, Grok, Meta AI, Copilot, Perplexity), in Apple's software, or in a notes or productivity app. New model generations count. Point releases, developer APIs, business deals, research, rumors and car, TV or watch features don't. That gave 308 items. Reports of the same launch within 72 hours were merged into one, leaving 206 launches. A launch's time is its earliest report with a clock time. Six had only a date, so they count for the weekday but not the hour.
The limits: these are publish times, so a launch that went live an hour before anyone wrote about it shows up an hour late. The archive kept few snapshots of 9to5Mac, 9to5Google and TechCrunch in June, so WWDC is undercounted. Anthropic and Meta announcements reach the count only through news sites. Our rubric leans toward what our readers use, so small notes features count as launches.
We counted because we write how-to posts the day something ships, for people who use these assistants with Pinto Notes, a notes app for the Mac that ChatGPT and Claude can read and edit. The charts and numbers are free to reuse: please link to this page.
Questions
What time does OpenAI usually release new models?
In our count, OpenAI followed the same pattern as everyone else: 20 of its 35 launches with a known time broke between 11 am and 5 pm US Eastern. That's 57%, a little below the 64% across all companies.
Can I use these charts in my article?
Yes. Use the charts and numbers as you like, and link to this page as the source so readers can see how we counted.
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