Ethan Mollick (@emollick) header
Ethan Mollick (@emollick) profile picture

Professor @Wharton studying AI. New book, Co-Existence, is out now: https://xitter.twitterapi.xyz/t.co/hsDYf1xU9K My Substack: https://xitter.twitterapi.xyz/t.co/UIBhxu4bgq

Philadelphia, PA
Joined May 2009
My new book, Co-Existence, is out today. It is a guide to how to live & work in a world where AI is sometimes, but not always, better than you. (And, for the release, I worked with Opus 5.5 to make a quite interesting experience for the book's website: co-existence.ai/)
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The counterexample to AI diffusion taking a long time is coding, where the complete transformation of a profession is well underway less than a year after real working coding agents. Faster than I would’ve expected given historical technological adoption rates in professions.
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Hey, remember “talk to your documents” RAG-based solutions as the future of AI? Crazy times a year and a half ago.
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Anyhow, in a little over a week we will see the release of The Last Human Game. There will never be another AAA game at the scale of GTA 6 with no AI assistance. People will look back at an all-human game with a billion dollar budget and wonder how they did it, like the Pyramids
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The anti-AI backlash in games is mostly hurting indie studios. Insisting on no AI code in a world where all coding will effectively involve AI is an impossible standard. If fans care about human work, reward games centering human artists & designers rather than policing AI use.
The reveal that Big Walk used AI for "under 0.1%" of its code has caused a big blowup among fans, developers, and game award judges. Where do people draw the line on genAI in gaming, and how did a 2026 GOTY indie darling become ground zero for the debate? We broke down the messy discussion: kotaku.com/big-walk-ai-discl…
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I know many people in the industry, have published research on it, built games myself. Almost every indie studio and game designer is just going to lie about using AI and live in fear of their fans. And solo developers & larger studios will not be punished the same way.
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I asked Fable 5.2 & Gemini Carbon to "Solve the Fermi Paradox. Marshal data, test hypotheses, pressure test them against critics, give me likely answers if you cant get a definite conclusion" They did not solve it, but did do interesting stuff. Fable 5.2 where-is-everybody-fermi.net…
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Another weird AI game project: I gave Claude Fable 5.2 a vague paragraph asking for a fantasy transport sim with heart. Then I left it to a bunch of agents arguing about art, lore and jokes. Now here is Dread & District, where good logistics defeats evil. dread-and-district.netlify.a…
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The graphic style is fun and the UX is surprisingly good.
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One of the most significant things about Gemini 4 Carbon is that it is showing that Google is back in the race of frontier models, rapid releases and rapid improvement.
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Had early access to Gemini 4 Carbon, it is a very good model that improves on Argon. It is useful to have an AI that thinks differently than Claude/GPT & is still highly capable, but has its own strengths & weakness One fun demo: I gave Carbon a video clip & it reproduced in 3js
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Author of the original train clip: ritsumei.ac.jp/~akitaoka/ind… Play with the 3js recreation: keio-line-front-cab.netlify.…
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In one of my favorite experiments, I told Fable 5.2 to build an endless, hands-off journey through 3D worlds linked by portals. 25,000 agents created over 450 worlds inspired by books, art, places, all in code. Play: portals-endless-worlds.netli… Github: github.com/emollick/ai-porta…
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In my post, I talk about how the agents involved began to build a bureaucracy over time, which eventually slowed development to a crawl. An example of jaggedness at scale: oneusefulthing.org/p/fable-5…
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Looks like Fable 5.2 is above the already steep trendline on three of the most informative unsaturated benchmarks (ECI is a composite of other benchmarks, Remote Labor measures the ability to do end-to-end freelance jobs, RoboDojo involves controlling robotics).
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In addition to more serious examples I shared in my post, I had Fable 5.2 build a parody reverse Scooby Doo game where you have to scare away meddling kids. Here is the trailer it made (including the music and sounds) and the game (which is fun) is here: i-would-have-gotten-away-wit…
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I had early access to Fable 5.2 for a bit & I think it crosses the line into being a sort of Jagged AGI. Here, I have it launch a business, do academic research, hack hardware, build 3D models & more. I think it is a good illustration of limits & powers: oneusefulthing.org/p/fable-5…
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A favorite optimistic view of the future of AI is from a pessimistic book that not about AI: "Rise and Fall of American Growth," which argues that we had a one-time explosion in living standards from 1870 and 1920 (& later outside the US). In 1870: no toilets, no city plumbing, lamp light, no central heating, little public health, horses for local travel, etc. In 50 years, all of this was solved & the nation was electrified. In the next fifty modern medicine, air travel and telecommunication happened. The book then points out that we have had no changes in lifestyle of similar scale since the 1970s. Written in 2016, it argued that we would likely never experience another boom like the "Special Century." The positive view of AI should make us ask "But what if we do?" and "How do we make it all go right?"
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