Victor Taelin, Higher Order Company founder, reports achieving overnight code optimizations and bug fixes alongside a $655 bill
Story Overview
Victor Taelin put the newly available Claude Fable 5 through heavy multi-hour agent runs on his HVM5 and Bend codebases and came away with file cleanups, a tricky garbage-collection bug fix, and speedups reaching 1770 percent in one benchmark, all after a single overnight session that produced a $655 charge.
High usage quickly adds up under new pricing
At $10 per million input tokens and $50 per million output tokens, extended agentic workflows on the Mythos-class model can generate substantial bills fast, as Taelin’s experience shows when prior GPT-5 and Opus runs are compared.
Whether the speedups justify the spend stays open
Replies to Taelin’s post focus on the same tension: clear code gains arrived, yet the exact token volume and long-term value versus the $655 outlay are not detailed, leaving developers to weigh the trade-off themselves.
Positive users see the $655 bill as cheap for overnight project gains while negative users worry the costs will quickly drain wallets or hit limits.
Most Activity
overnight 😣
woke up to unfathomable progress in all my projects
cleaned up files, fixed bugs, mind-blowing optimizations
and a $655 bill
@VictorTaelin worth it?
woke up to unfathomable progress in all my projects
cleaned up files, fixed bugs, mind-blowing optimizations
and a $655 bill

@danicuki it was, but still within 10x of our comfort zone
$5k/mo for a 24/7 Fable instance would be sustainable for my company, but it is more like $50k/mo rn

@VictorTaelin We went from 'models are too dumb to write code' to 'agents are so productive they will bankrupt you if you go to sleep' in under two years.

@VictorTaelin Untangled chaos: broke Cleaned up files: bespoke

@VictorTaelin will you be able to refactor your project before it refactors your wallet?

@VictorTaelin The invoice is the real AGI alignment problem.

@gbrlvv idk what untangled chaos even was supposed to mean

@VictorTaelin Lmao, the bill part was so funny. Was it worth?

@VictorTaelin have you tried asking it to figure out paying its own API bill

@VictorTaelin That’s pretty cheap for the results wow I love the future

@VictorTaelin Please share more on the unfathomable progress

@VictorTaelin not bad honestly!

@VictorTaelin Well luckily I read in the comments that you’re rich, so no big deal

@VictorTaelin since there's no fast mode shouldn't u just get multiple $200 accs? i really doubt you'd hit 5 hour limits anyway, but i guess api is the only way for overnight uninterruptible work

@VictorTaelin

@VictorTaelin It's fine. Do like your profile pic and turn a blind eye.

@VictorTaelin Sounds like a great deal tbh

@VictorTaelin Have you asked Fable for ideas on how to make the click for SUPGEN >>> TAELIN AGI?

@VictorTaelin Ufff... Later, please tell us about the quality of that progress! 😊