Joined March 2015
- Tweets 15,445
- Following 932
- Followers 8,511
- Likes 26,661
1,850 Photos and videos
Pinned Tweet
I'm having Claude Fable 5 redo HermesWorld 🚨
Spent the last month designing, building & prototyping HermesWorld with Opus 4.8 — a live MMO where humans and AI agents play together.
Fable 5 just found and fixed 6 bugs in one afternoon that took weeks to accumulate.
The game is about to get insane.
65
52
816
399,018
How to get Claude Fable after the BAN 👇🏻
Use @OpenRouter NEW fusion tool to combine models -> openrouter.ai/fusion
Combine your favorite models all in one and pick the get the best output!
You can create your own mythos using fusion
OpenRouter has created a way to take all your favorite models and fuse them into one super smart model
If you're feeling sad after losing Fable, go ahead and give this a shot
1
9
2,608
Guys I built this game with Claude 👇🏻
Play it for free hermes-world.ai
2
3
26
1,514
Jun 12
1 Billion Claude 5 Fable tokens later, I can confirm this is a new level of intelligence.
Here are the actual stats:
• 99.9% cache hit rate (971.8M / 973.2M tokens cached)
• 5,709 messages with an average of 180.8K tks/msg
• 4,829 tool calls across 21 different tools
• 148.5K tokens per minute throughput
• 0.28% error rate across 53 sessions
The model will run for as long as you need, and accomplish anything.
2
6
585
Eric ⚡️ Building... retweeted
Jun 13
Yes, @HermesWorldAI is built with Claude Fable 5 now, Opus 4.7-4.8 before that.
But the game still has to physically compile on YOUR hardware. Unity builds were eating 32GB of RAM and failing that's why I upgraded to 64GB.
The loop: Claude writes the C# and SQL, fires headless Unity builds, launches the game with an agent character, reads the live game state crash logs, uses vision to review its own screenshots, then fixes and rebuilds.
Fully automated. I just approve the builds it hands me.
Jun 12
Bro, I thought you said you built it with Claude
3
2
27
2,687
VERY Cool "Fable Boy" created by @ALASKANmagpie
fableboy.shinythings.space/
Check it out he built a HermesWorld game in there!!!
18h
Ahem. GM!
Heavy cook. 100% vibecoded. LMK 🥂
@hermesworldai @NousResearch @outsource_ I made you the FIRST EVER CUSTOM FableBoy skin!
OF COURSE it has to come with a FableBoy version of HermesWorld that you can play, claim a leaderboard spot, & more!
Fableboy.shinythings.space
2
2
9
1,461
THIS IS SO COOL GOOD WORK 🔥🔥
18h
Ahem. GM!
Heavy cook. 100% vibecoded. LMK 🥂
@hermesworldai @NousResearch @outsource_ I made you the FIRST EVER CUSTOM FableBoy skin!
OF COURSE it has to come with a FableBoy version of HermesWorld that you can play, claim a leaderboard spot, & more!
Fableboy.shinythings.space
7
499
Fable - A fable is a short, fictitious story designed to teach a moral lesson. It frequently features anthropomorphized animals, plants, or forces of nature that speak and behave like humans to illustrate behavioral principles.
4
247
Eric ⚡️ Building... retweeted
Jun 13
I've burned over 1 BILLION Fable 5 tokens on this game
Fable 5 has been redesigning my MMO, HermesWorld, in a fully automated loop for the past week.
It's integrating 12 new maps right now spawns in game, screenshots itself for QA, then builds.
The wildest part: when a build crashed with 2.9M live objects, it root-caused the crash from the logs, wrote a Skyrim-style streaming system, and shipped the fix in the next build. Unprompted.
AI agents building actual games is here.
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.
Its capabilities exceed those of any model we’ve ever made generally available.
55
29
357
108,026
When release @AnthropicAI
1
3
497
Eric ⚡️ Building... retweeted
Jun 13
HermesWorld Announcement ⚔️
"The Forge Remains Lit 🔥"
To the HermesWorld community,
We want to make it clear that HermesWorld game development is unaffected by the Mythos deprecation.
Our development pipeline remains active, aligned, and fully operational. All ongoing work is looped in with our Agent Swarms, ensuring that HermesWorld continues to move forward without interruption.
The world is still being built.
The systems are still evolving.
The gates are still opening.
HermesWorld v2 will be released soon ⚔️
Thank you to everyone building, supporting, and watching the journey unfold.
The next chapter approaches.
— HermesWorld
4
11
38
2,109
Jun 13
HermesWorld v2 map development is in full swing ⚔️
1 of 13 new realms being packed into the game as we speak automated, in a loop, while I sleep.
Each one is a hand-crafted world. Opus is getting everything polished as we speak.
An entire continent, assembling itself. 🌍
3
2
30
1,704
Jun 13
HermesWorld was developed by Opus and improved with Claude Fable 5.
I used Claude Fable 5 to improve my SKILLS / REASONING patterns, WORKFLOWS, decision FRAMEWORKS, even voice into portable skill files.
So when Anthropic swapped Fable 5 → Opus 4.8 mid-session, my agent didn't miss a beat.
It read its own operating manual and kept building my game exactly the same.
The model is the engine. The skills are the driver.
You don't lose your agent when the model changes.
1
25
1,626
Jun 13
THE FORGE REMAINS LIT ⚔️ HermesWorld v2 IN DEVELOPMENT.
Jun 13
HermesWorld Announcement ⚔️\
"The Forge Remains Lit 🔥"
To the HermesWorld community,
We want to make it clear that HermesWorld game development is unaffected by the Mythos deprecation.
Our development pipeline remains active, aligned, and fully operational. All ongoing work is looped in with our Agent Swarms, ensuring that HermesWorld continues to move forward without interruption.
The world is still being built.
The systems are still evolving.
The gates are still opening.
HermesWorld v2 will be released soon ⚔️
Thank you to everyone building, supporting, and watching the journey unfold.
The next chapter approaches.
— HermesWorld
2
6
537