I asked Opus 5.5 to build a working computer from scratch. And holy fuck did it deliver. 277k logic gates in JS, an OS on top, and games on the OS. This isn't a mockup... it's a computer. Run it: somethingbig.ai/computer↗

Every time you let Opus 5.5 run a long task on its own, have it vibe-code a quick 𝗛𝗧𝗠𝗟 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱 like this first. Then give it 𝗮 𝘀𝘂𝗯𝗮𝗴𝗲𝗻𝘁 𝘁𝗵𝗮𝘁 𝗼𝗻𝗹𝘆 𝗯𝘂𝗶𝗹𝗱𝘀 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀: → Name it dashboard-builder, set its effort to medium, and preload…↗

one Opus 5.5 prompt, and now I run around a virtual office managing agents to work on github issues and merge conflicts↗

Using Claude Code: Spending your effort One of the best parts of our newest Claude models is how they respond to effort without breaking the prompt cache in Claude Code, but I’ve received a lot of questions on this from users. What is effort really and when do you use which effo…↗

I had high hopes for the new Opus release. It massively exceeded them. Opus 5.5 is an incredible model.↗

holy shit, opus 5.5 is kind of insane at animation. i didn't write a single line of code. it wrote the story, drew every frame, and made the music. no image assets at all, it's all JS. the story is called "small print": claude gets a pile of requests every day. it circles the hu…↗

opus 5.5, animated pixel art wizard, pure code prompt shared below 👇↗

Opus 5.5 is way, way, way better than Opus 5. Sorry about that model, please try this one.↗

I asked Opus 5.5 to try a bunch of redesigns of my personal website using my MAX sub, using workflows to iterate and critique. I was really pleased with how it hit the tone I was looking for. Then I asked it to make a trailer with all of its iterations.↗

I was invited to test Opus 5.5. The differences at the high end are hard to notice unless you're being ambitious. They reward ambition though. If you can't tell the difference here, or if you're intentionally micro-prompting a model, I think the fast models (composer, Gemini f…↗

Opus 5.5 is here! 🎉 It's honestly such a nice model to work with. Feels like Fable, but ~30% faster and ~40% cheaper per task than Opus 5. Go try it out!↗

opus 5.5 = personality of opus 4.6 that we all *desperately* wanted back + the intelligence & taste of fable 5.1. and a 25% usage bump! i honestly don’t really see a reason to use another model right now? s-tier release.↗

I asked Opus 5.5 to make a game inspired by the discovery of the first computer, the Antikythera mechanism. Everything you see and hear is procedurally generated in real time, from code by Opus 5.5. It's a single 3 MB HTML file. Playable Claude artifact below.↗

Opus 5 (or Opus 5.5) built a scroll site for a heavy transport company with some great animations in oneshot! Took one prompt and I took some inspo from the website unitedcarriers dot com if you wanna check it out: axis-haul.vercel.app↗