What do we build now? — Theo Browne, @t3dotgg

By ai.engineer

Categories: AI, Tools

Summary

AI models are evolving through distinct eras—from tool-calling to orchestration—and builders must "go bigger" with increasingly capable models like Claude Opus 4.5 and Mythic rather than optimize existing workflows, or risk being outpaced by AI advancement.

Key Takeaways

  1. Model capabilities now follow distinct eras: Sonnet 3.5 (reliable tool-calling), Opus 4.5 (multi-step task completion spanning hours), and Mythic (self-orchestrating model that spawns sub-models). Map your products to the current era to unlock value.
  2. Most legacy Jira tickets are trivially solvable with Opus 4.5, but won't benefit from Mythic. Builders must architect for the next capability tier, not optimize for yesterday's constraints.
  3. Models improve faster than developers can optimize code—shift from incremental improvement to ambitious scope expansion. You can't outpace AI iteration through optimization alone; you must build bigger problems.
  4. Mythic doesn't require custom tooling or software factories—prompt the model to spawn additional models and break work into verifiable chunks. Simplicity and scale emerge from better prompting, not infrastructure.
  5. Override accumulated technical opinions from 10+ years of coding (vim, tmux, Git workflows). Embrace new paradigms rather than convincing yourself legacy tools are superior—like iOS 7's shift from skeuomorphism to usefulness.

Related topics

Transcript Excerpt

[music] >> Hello, hello. Fantastic to see you guys here. I still can't believe they're letting me take a stage at something like this, a YouTuber apparently, but can't wait to share a bit about how I've been thinking because if I'm being real, kind of going through some AI psychosis. Who here would classify how they feel right now as some form of AI psychosis? I want to see some hands. The Those who don't have their hands up yet, don't worry. We'll get you there by the end of this talk if I do everything right. In order to talk about this, I want to start with a bit of a personal journey of my own. And I'm going to go through this the way anybody does in modern timelines, with the models. Who here used Sonnet 3.5 when it was the creme de la creme, the cream of the crop model available to u…

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