bio_bootloader's profile picture. Father of 3, building Mentat (the github native coding agent!) @AbanteAI, prev @DeepMind

Scott Swingle

@bio_bootloader

Father of 3, building Mentat (the github native coding agent!) @AbanteAI, prev @DeepMind

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if you haven't tried Mentat for a while... give it a spin


bio_bootloader's tweet image.
ทวีตนี้ไม่สามารถใช้งานได้อีกต่อไป

Scott Swingle รีโพสต์แล้ว

on why it's important and beautiful

GregKamradt's tweet image. on why it's important and beautiful

Olympic athlete (the last human job?) training going well. She’s 16 months


Scott Swingle รีโพสต์แล้ว

Thought of a few more things on summarization, truncation, committing and process 🧵

Sad we couldn't make the business work. Thought I'd share some of my favorite ideas of ours on agent design 🧵



Scott Swingle รีโพสต์แล้ว

I think you identified most of the mistakes. I think the blind spot was really undervaluing design, marketing, and sales; common pitfalls for engineering heavy teams. You guys out-engineered the field massively, but the UX held back the adoption and sales process.


I think context windows will be enough a big chunk of context will be snippets of mistakes made previously by agents in similar situations. models will vastly improve at generalizing from these and training models with consistent/"native" memory harness/tools

big unresolved question right now: will memories / continual learning be in weights or context window (via harness / memory tools) or both



big unresolved question right now: will memories / continual learning be in weights or context window (via harness / memory tools) or both


Scott Swingle รีโพสต์แล้ว

Sad we couldn't make the business work. Thought I'd share some of my favorite ideas of ours on agent design 🧵

We're shutting down Mentat. Thank you to our users! Many of you tell us it's your favorite coding agent. We just didn't reach sustainable growth. I'm proud of our exceptional team: @ja3k_, @granawkins, @plutobyte. Reach out if you want to talk!



We're shutting down Mentat. Thank you to our users! Many of you tell us it's your favorite coding agent. We just didn't reach sustainable growth. I'm proud of our exceptional team: @ja3k_, @granawkins, @plutobyte. Reach out if you want to talk!


a jump in growth rate from 0.2% to 2% sounds suspicious, but: imagine the economy HAS grown 2% year for the last 2000 years. Then 2000 years ago global GDP would have been just $0.0008 total (not per capita!)

bio_bootloader's tweet image. a jump in growth rate from 0.2% to 2% sounds suspicious, but:

imagine the economy HAS grown 2% year for the last 2000 years. Then 2000 years ago global GDP would have been just $0.0008 total (not per capita!)

join the mentat party now! a new kind of interactive social experience!

Introducing the Mentat Party Agent. It’s a coding agent running in the cloud that anyone can interact with - without even logging in. I started it with a simple web app with a chatroom and snake. What will it become? Up to you. mentat . ai / party x.com/i/broadcasts/1…



Scott Swingle รีโพสต์แล้ว

Party chat showcases so much of what makes Mentat unique - Every chat is a group chat - Long running chats - Great mobile site

Introducing the Mentat Party Agent. It’s a coding agent running in the cloud that anyone can interact with - without even logging in. I started it with a simple web app with a chatroom and snake. What will it become? Up to you. mentat . ai / party x.com/i/broadcasts/1…



Scott Swingle รีโพสต์แล้ว

Introducing the Mentat Party Agent. It’s a coding agent running in the cloud that anyone can interact with - without even logging in. I started it with a simple web app with a chatroom and snake. What will it become? Up to you. mentat . ai / party x.com/i/broadcasts/1…


Scott Swingle รีโพสต์แล้ว

Code Agent SOTA as of Oct 6th 2025: - Codex in Codex CLI is the smartest and best model. Its endurance and thoroughness are insane. Slow - Cheetah in Cursor is the best pair programmer by far. It is so fast you can voice input and get instant, good changes. Bottleneck is…


Sonnet 4.5 beats Sonnet 4 as the best long code context model Both still in a class of their own!

bio_bootloader's tweet image. Sonnet 4.5 beats Sonnet 4 as the best long code context model

Both still in a class of their own!

Scott Swingle รีโพสต์แล้ว

Sonnet 4.5 is live on Mentat now!


> The evaluations we ran simply didn't capture the degradation users were reporting, in part because Claude often recovers well from isolated mistakes. we give Mentat agents an "exit survey" to report harness bugs, even if they found a workaround


it's easy to get to 95% or even 100% of code "written by AI". But that's not the same as a 20x speedup! Complex tasks in real codebases aren't yet even 2-3x sped up yet. It's coming. Saying it's here already is premature.

“For our Claude Code team 95% of the code is written by Claude.” —Anthropic cofounder Benjamin Mann One person can build 20X the code they could before The future is here, just not evenly distributed



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