As of: 2026-10-10 23:43 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/p/2026-10-09-completeskeptic-typesafe-series-a/

# Diogo Almeida: TypeSafe 'raised a really big series A from @a16z', three weeks after launching Jev

Diogo Almeida (@CompleteSkeptic), X, 2026-10-09.
Source: https://x.com/CompleteSkeptic/status/2108594987177021737

## Why it matters

First-hand founder announcement of TypeSafe's $870M Series A, with the claims 'trillions of tokens a day' and '29.4% of the fortune 500'; ~1.12M views (fxtwitter, Oct 10).

## Summary

Founder and CEO Diogo Almeida's post (Oct 9, 16:26 UTC): "launched a model / accidentally served trillions of tokens a day / 29.4% of the fortune 500 showed up / raised a really big series A from @a16z / it's been 3 weeks / we would like to sleep now". About 1.12M views and 7.4k likes on Oct 10 (api.fxtwitter.com). A follow-up post a minute later (https://x.com/CompleteSkeptic/status/2108594988695314871, ~240k views) links the company blog post https://typesafe.ai/blog/series-ai. The Fortune 500 share is a company claim; a16z's own post says 25%.

## Archived text

> launched a model
> 
> accidentally served trillions of tokens a day
> 
> 29.4% of the fortune 500 showed up
> 
> raised a really big series A from @a16z 
> 
> it's been 3 weeks
> 
> we would like to sleep now

Archived 2026-10-10 via fxtwitter (unofficial).
Counts: 1,123,591 views, 7,401 likes, 274 reposts, 535 replies (at fetch time)
Media: https://video.twimg.com/amplify_video/2108594586310631424/vid/avc1/1920x1080/k43RRAMOOlkIaQlH.mp4?tag=29

## Cited in

- 2026-10-09: [TypeSafe AI, maker of the Jev decision model, raises ~$870M led by a16z at a $7.5B valuation](https://postcutoff.com/e/2026-10-09-typesafe-ai-870m-a16z-7-5b/)