43:15Theo - t3․gg · Tutorial
A proper guide to Fable 5
How Theo turned a returned, unmetered Claude release into a five-and-a-half-hour unattended agent run that cleared a month of stalled pull requests for about $150.
July 6thCreator
Theo - t3․gg
All breakdowns from Theo - t3․gg
43:15
23:24Theo - t3․gg · Talking Head
You were lied to about Fable
A 23-minute rebuttal of three viral claims about Anthropic's returning Fable model — that it's nerfed, that its subscription pricing is a bait-and-switch, and that it's too expensive to run.
July 4th
38:05Theo - t3․gg · Essay
Why I'm Moving to Linux (For Real)
A Mac loyalist explains why agentic coding broke macOS for him -- and how a fleet of $400 Linux mini-PCs fixed it.
July 3rd
28:37Theo - t3․gg · Talking Head
FABLE IS BACK! (And Sonnet 5 is here too)
A 28-minute benchmark teardown of Claude Sonnet 5, plus the government letter that brought Fable back from the dead.
July 1st
30:08Theo - t3․gg · Essay
GPT-5.6 is here, and we can't use it
OpenAI's next-generation model family exists, benchmarks impressively, and is locked behind a US government approval gate — a 30-minute breakdown of what that means.
June 27th
19:57Theo - t3․gg · Essay
Is it ever coming back?
A 20-minute investigation into the US government export control that pulled Anthropic's two best AI models offline — and what that precedent means for every developer who builds on frontier AI.
June 24th
44:34Theo - t3․gg · Essay
I don't have time to build these things, will you
A 44-minute wishlist from a burned-out builder who wants solo devs to tackle the infrastructure problems that have gone unsolved for a decade.
June 22nd
24:44Theo - t3․gg · Talking Head
I guess we're writing loops now
A 25-minute case for letting agents run their own loops — and how one 2:29 AM prompt produced four merged PRs by morning.
June 18th
27:47Theo - t3․gg · Tutorial
I hated making this video...
A reluctant 28-minute tour of the Claude Code features every competing harness should steal.
June 17th
29:32Theo - t3․gg · Essay
The weird situation with Fable
Theo breaks down how Anthropic silently modified prompts, rewrote its system card, and built invisible safeguards into its most capable model - then got caught.
June 15th
14:20Theo - t3․gg · Essay
BREAKING: Fable and Mythos have been taken down for security concerns
A live 14-minute breakdown of the US government export control directive that forced Anthropic to pull Fable 5 and Mythos 5 offline for all non-US citizens — including Anthropic's own employees.
June 13th
30:40Theo - t3․gg · Tutorial
Mythos is here, it's time to start tokenmaxxing
A 30-minute field report on burning $5,400 of subsidized AI inference in ten days — and what actually came out of it.
June 12th
Video of the Day32:54Theo - t3․gg · Talking Head
Fable is Mythos, and it is really good.
A 33-minute first-take from a developer who spent $3,000 on inference in 24 hours — benchmarks, real demos, session math, and the hidden safety intervention that silently degrades the model without telling you.
June 11th
23:21Theo - t3․gg · Essay
Elon won after all
A 23-minute supply-chain autopsy explaining why Elon's reckless GPU overbuy is now the most valuable compute position in the world.
June 9th
47:33Theo - t3․gg · Talking Head
How I code with AI changed a lot
Theo scraps cursor, plan mode, and Claude after five months — here is exactly what replaced them.
May 27th
32:20Theo - t3․gg · Talking Head
I'm Addicted to Claude Code (i get it now)
Theo goes all-in on Claude Code over the holiday break — six parallel instances, no IDE opened, two projects from scratch — and comes back with a changed worldview on writing code.
January 6th