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Rob Haisfield

@RobertHaisfield • 9,697 subscribers

cofounder of @websim_ai, imagining new internets with our users. GenAI, TfT, BeSci, HCI, UX. Ex-Tana, Edge & Node, Spark Wave

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They banned Claude Fable 5 bc it was too good at playing Opus Magnum, we couldn't let foreign nationals have this power

They banned Claude Fable 5 bc it was too good at playing Opus Magnum, we couldn't let foreign nationals have this power

26,535 views

Happy Valentines Day! I made a social network for sharing what you love... and what you hate! Made with o3-mini-high in websim, link in replies

Happy Valentines Day! I made a social network for sharing what you love... and what you hate! Made with o3-mini-high in websim, link in replies

12,475 views

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Are AI agents shape rotators? In this new benchmark, we let the models play campaign puzzles in Opus Magnum, a puzzle game by Zachtronics. Ironically, Claude Opus 4.8 performed poorly, being beaten by GPT-5.5, Gemini 3.5 Flash, and GLM 5.2. Claude Fable 5 crushed them all.

Are AI agents shape rotators? In this new benchmark, we let the models play campaign puzzles in Opus Magnum, a puzzle game by Zachtronics. Ironically, Claude Opus 4.8 performed poorly, being beaten by GPT-5.5, Gemini 3.5 Flash, and GLM 5.2. Claude Fable 5 crushed them all.

498,486 views • 1 month ago

Claude Code plays Runescape: The waterfall quest. Here Claude Opus 4.6 is acquiring quest items in the maze and tomb. Not a script, real play. It tried things, failed, learned, and succeeded. I sped this up a lot, it's ~20 minutes of real time.

Claude Code plays Runescape: The waterfall quest. Here Claude Opus 4.6 is acquiring quest items in the maze and tomb. Not a script, real play. It tried things, failed, learned, and succeeded. I sped this up a lot, it's ~20 minutes of real time.

420,330 views • 5 months ago

Fable with low reasoning is roughly comparable to GPT-5.5 medium on the 20 puzzles they both solved. Fable scored higher in 14 of those, and I think Warming Tonic illustrates how different quality alchemical machines look. Solve rate isn't everything, quality is important!

Fable with low reasoning is roughly comparable to GPT-5.5 medium on the 20 puzzles they both solved. Fable scored higher in 14 of those, and I think Warming Tonic illustrates how different quality alchemical machines look. Solve rate isn't everything, quality is important!

41,084 views • 1 month ago

I optimized my Rune Mysteries Quest script 75% to 1530 ticks (15 min normal game time, from 58 min). Loop: write a script checkpoint, run it, note learnings and ideas to a shared log file, repeat. Each loop took five min, I let it rip overnight with a claude team.

I optimized my Rune Mysteries Quest script 75% to 1530 ticks (15 min normal game time, from 58 min). Loop: write a script checkpoint, run it, note learnings and ideas to a shared log file, repeat. Each loop took five min, I let it rip overnight with a claude team.

85,854 views • 5 months ago

o1 became obsolete in websim the moment o3-mini-high came out. It's faster than o1, and often a more powerful coder than Claude 3.5 Sonnet. Consistently high quality outputs, and less than a 7th of o1's costs. With o3-mini-high, I was able to make a 3d falling sand sim on the surface of the globe. Sandglobe is a reasonably performant, works on desktop and mobile. It features multiple elements that have interactions with each other, like lava and sand becoming glass, and water flowing to fill space.

o1 became obsolete in websim the moment o3-mini-high came out. It's faster than o1, and often a more powerful coder than Claude 3.5 Sonnet. Consistently high quality outputs, and less than a 7th of o1's costs. With o3-mini-high, I was able to make a 3d falling sand sim on the surface of the globe. Sandglobe is a reasonably performant, works on desktop and mobile. It features multiple elements that have interactions with each other, like lava and sand becoming glass, and water flowing to fill space.

24,444 views • 1 year ago

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