Developer @ChrissGPT uses Anthropic's Claude Fable to write an 8,000-line Pokémon game in a single generation
Story Overview
A developer prompted Anthropic's newly released Claude Fable to build a complete Gen-1 Pokémon tribute including all 151 original creatures with authentic sprites, stats, movesets, evolutions, cries, and battle UI, producing an 8,000-line codebase after roughly an hour of model reasoning in one generation.
One prompt produces full apps and styled docs
The same run also turned out McKinsey-style reports and 3D renderings, showing the model's reach across code, structured analysis, and visual output in a single session.
Limits still unclear outside social demos
Independent checks of the exact Pokémon output remain sparse beyond the original posts, leaving open how consistently the model handles equally ambitious tasks at production scale.
Many users praise Claude's speed and polish in one-shot generating full Pokémon clones and complex apps, while some criticize the high cost of these generations.
Most Activity
Holy Sh*t. This is insane. @ChrissGPT made a real Pokemon Clone with Claude Fable 5
8. Rich Email marketing
5. Apple Glass liquid UI with just CSS
4. 3D humanoid robot
> Previous batch of 10 demos:
Claude Fable 5 is by far the most ridiculous model that makes me genuinely afraid for the future of software engineering.
I compiled the top 10 most unbelievable things I've seen Claude Fable 5 do today:
— Migrate a 50M line codebase from Stripe in a day (humans take 2mos) — Draw amazing 3D graphics a) Boeing 747 b) space simulations with >5000 objects c) Minecraft roller coasters d) full photorealistic forest scenes e) NYC skyline f) stormy clouds) — One-shot Pokemon FireRed the game — Optimize a real world proprietary interaction net evaluator 10x more than the next best model, gpt5.5
AND it's about the same price as GPT 5.5 ($10/M input, $45/M output) vs Fable 5 ($10/M input, $50/M output) and 6x cheaper than GPT 5.5 Pro.
3. Complete pixel for pixel clone of Pokémon the game
7. Upgraded website design
2. Near identical SpaceX S-1 IPO draft (from scratch)
@kimmonismus @ChrissGPT Ofcourse it is too good the results in just last 24hrs of ppl building with fable are unbelievable 🔥🎉🙌
6. 3D version of Yosemite.
this one really blew my mind
@kimmonismus @ChrissGPT Insane damn but did he just spend $2k on pokemon 😭
@vishalsingh2972 @ChrissGPT We have to ask him. It’s too good to be true tbh
@kimmonismus @ChrissGPT It's really cool that it was able to make a 00s game. nah, it's joke
Damn, this is actually pretty impressive. The battle system, rival encounter, and map movement already feel way more polished than I expected from something made with an LLM. Did @ChrissGPT share how long this took or roughly how much it cost in tokens? Curious if Fable 5 handled most of the core logic and integration, or if there was still a decent amount of manual tweaking needed to make everything work together. Kinda wild to think that this level of game dev might go from taking weeks to just a few hours.
@kimmonismus @ChrissGPT hahahaha hell yea
@kimmonismus @ChrissGPT Imagine how good AI has become that it is building a game that has taken lots of devs initially and the money and now it's being done in few minutes with a less cost
@kimmonismus @ChrissGPT 2k for a 2D game, bruh
@kimmonismus @ChrissGPT not sure 'real' holds once you get past the overworld sprites battle logic, type matchups, encounter tables get gnarly fast. did fable actually do the combat system end-to-end or was the one-shot more the visual layer?
@kimmonismus @ChrissGPT That is one expensive pokemon lord.
@kimmonismus @ChrissGPT This is actually insane bro