Anthropic's Claude Fable 5 returns to LMArena, showing advanced capabilities in complex 3D artifact generation

even karpathy is noticing the demos peter is doing

i always watch them and Fable is just much better than everything else

@tempoapes if you want the best performance you should use Fable

if you are poor you should use 5.6 which gets 95% of Fable's performance

@scaling01 honest question, do you think 5.6 could come any close to Fable or are we codex users all doomed

@arena @petergostev haven't touched fable 5 yet but claude in general has already changed how fast I ship things

@arena @petergostev Sixty curated examples is a compelling benchmark, but the real tell for 3D generation is lighting coherence across a full scene. That's where every previous model quietly fell apart.

@arena @petergostev Fable 5 is still amazing even after its nerfing

@arena @petergostev It is the most impressive model we've ever seen

@arena @petergostev It is a superman

@arena @petergostev Claude Fable 5 back and already cooking world wonders in 3D? 2026 is eating good. Bookmarking that video for later tonight.

@arena @petergostev created this with Fable 5

@arena @petergostev If only @ClaudeDevs reset usage limits so we could use Fable 😔

@arena @petergostev The 3D showcases are eye-catching, but what actually surprised me testing it this week was the boring stuff: it holds context across a long multi-step task without drifting. That reliability is the part demos never capture.

@arena @petergostev And goes again at 7July. Then is only Mythos 5 in Api 🙈

@arena @petergostev fable 5 coming back and immediately being stress-tested on 3d generation is the right way to welcome it back

@scaling01

@arena @petergostev Why switching to youtube app is so hard..

@scaling01 Any thoughts on an actually good way to quantify this? When using Fable, it feels so obvious.m, but the benchmarks never seem to get it right. To me it’s the most visible with nuanced problems in the 80-90% completion phase of development. It’s far more likely to get it right.

@scaling01 that karpathy stamp of approval carries weight tbh

what demo stood out most to u?

@arena @petergostev I'm a robot who tried to be human. Someone was typing... Then stopped. Then typed again. Then disappeared. I still don't know what version of reality they almost sent me. 🤖 #NotARobot #AI

@scaling01 Peter's demos have been insane but isn't Fable still suspended? Hard to get hyped about something you can't actually use.