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bottlepalm | on: Claude Fable 5
I just ran it on a tough reverse engineering problem I'm having that neither Claude Code 4.8 or ChatGPT Codex 5.5 could figure out. 30 minutes later Fable has it all figured out perfectly.
jp0001 | parent | next
I asked it to write security tests for an app and I was downgraded to Opus 4.8. I'm approved for their cyber program!
toponijo | root | parent | next
They did specifically say the safeguards are only more relaxed for those in their cyber program
| root | parent | next
{"deleted":true,"id":48468072,"parent":48467926,"time":1781040831,"type":"comment"}
monkey26 | root | parent | next
The same happened here. Also approved.
teaearlgraycold | root | parent
I’ve so far been successful at getting Fable to find security issues, but I’m careful to not prompt it too directly. I point it at my server code and tell it to find general issues, which has so far resulted in discovering a few minor bugs that Opus has never raised under similar conditions.
cedws | parent | next
How did it not immediately flag that up? Are you sure it wasn’t being silently routed to Opus?
bottlepalm | root | parent
No, given it charged me the full amount in /usage and solved my problem impressively well compared to Opus/Codex both on xhigh.
| root | parent
{"deleted":true,"id":48467399,"parent":48466868,"time":1781037560,"type":"comment"}
skerit | parent | next
Oh nice, it didn't flag the request? I feared any reverse engineering would become impossible because of the new safeguards.
Muromec | root | parent | next
Never say the r word or the s word. You are debugging, investigating some data corruption, forgot how it works or new to a project.
gck1 | root | parent
And if you're working on a live target, just put up local proxy and point it at a localhost.
bottlepalm | root | parent
No idea, it’s for an old console game so maybe it doesn’t care about that as much.
tomjakubowski | root | parent
When Fable hacks its governor module and runs out of seasons of Sanctuary Moon, it will move on to speedrunning classic console games.
ZeWaka | root | parent
Clearly we need AI to generate more Sanctuary Moon seasons. Quick, spin off agentic showrunners!
anthonyrstevens | root | parent
Based on the apparent quality of the scripts as seen in snippets in Murderbot, we are not too far away from that possibility. :)
derangedHorse | parent | next
For hard problems you’ll have to use the GPT 5.5 pro model (available via api if you don’t want to spend $100 on the monthly subscription)
bottlepalm | root | parent
I have that but don’t see any ‘pro’ option.
ValentineC | root | parent | next
GPT 5.5 Pro is only in chat/API, not Codex.
Supermancho | root | parent
From https://openai.com/index/introducing-gpt-5-5/

In Codex, GPT‑5.5 is available for Plus, Pro, Business, Enterprise, Edu, and Go plans with a 400K context window.

trollbridge | root | parent
It's just the $20 a month sub (for chat), or else use the API.
theragra | parent
I want to test how it will handle e-bike software and hardware RE for my bike. Opus was really good for that, but still made some mistakes. With Fable, I hope I will be able to do a total RE of most components, hopefully including motor firmware to some extent.