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. https://t.co/2AvmEjHIX8↗

Fable 5 is state-of-the-art on nearly all tested benchmarks, with exceptional performance in software engineering, knowledge work, scientific research, and vision. The longer and more complex the task, the larger Fable 5’s lead over our other models. https://t.co/DxgSu0KUxh↗

Claude Fable 5 changed how we work on the Claude Code team day to day. We used to verify that Claude did the work right. Now we verify that it's doing the right work. Here’s the 3 biggest changes: https://t.co/KhYNlNWcC4↗

Fable 5 is the biggest step up I’ve felt in our models since Opus 4.5 back in November. After 4.5 came out I uninstalled my IDE when I realized that I’d been doing 100% of my coding in a terminal for a few weeks. With Fable, it’s felt like Claude has stepped up from being a codi…↗

https://t.co/hIe0UX7z6T↗

Mythos 5 wrote this melody which I absolutely love Oh, and it also wrote this piano visualizer (naturally) https://t.co/pQ0briiGKo↗

BREAKING: Anthropic just dropped Claude Fable 5—this is Mythos, made safe for public release. It is the best coding model in the world. We've been testing it internally @every for the last week or so across coding, writing, marketing, editing, and more—here's our vibe check: …↗

introducing gemini 3.5 live translate, our latest audio model: - low-latency translation across 70+ languages - auto-detection for multilingual inputs in a single session - native audio processing that preserves pitch & pacing - robust noise filtering for loud environments try…↗

I've had access to Fable for a bit. A genuine jump in capability, I could feed it a 15 page design document for a project and it would work for 9+ hours and deliver terrific results. But working with it is weird & weirder is coming Lots of examples: https://t.co/HptkYunBzr↗

Design is full of codewords. Knowing them changes what you can ask for, and what you can get back, whether you're working with devs, or an AI. “tint this neutral color”, “fix this widow”, “nudge it to the optical center” I wrote them down: https://t.co/aFyd5avj9o https://t.co/…↗

@claudeai let the monthly migration from codex to claude code begin https://t.co/iaxeMs5qzV↗

I gave Fable this tweet and let it crank in ultracode. It created a fully functioning multiplayer markdown editor with obsidian style editing, version history, sharing with email invites, cli sync with a skill, image support, deployed it to cloudflare and bought a domain. https…↗

A lot of designers were asking for the storyboard behind this animation, so I decided to share it with the client's permission. All the rejected hooks/options and many concepts are still there Enjoy!! https://t.co/4uqCask8bs↗

no, there won't be a pi release for fable today. do this: "hey pi, here are the stats for anthropic's fable re: context window/cost. add it to models.json" enjoy. just don't do bio or cyber!↗

I've scrolled past a lot of spinner libraries over the years. None quite fit. So I built one. Flicker is a dot-grid spinner library inspired by flip-dot displays. Browse, build your own, and export to SVG, React, or Flutter. Try it at: https://t.co/Tq5XSVL4Io https://t.co/Yzdx…↗

pull requests are getting harder to keep up with as agents write more code @mainframe now turns any GitHub PR into a narrated video walkthrough so you can understand what changed without starting from the raw diff try it at https://t.co/VWxlWIVaRg https://t.co/qKmlpNzYyf↗

in hindsight my toy side project after leaving meta was ahead of its time. making good loops is difficult, but it shouldn’t be https://t.co/aIH3aqj9xo↗

Skribe is live. 🤘 A workbench for writers that still love to write. Markdown on the left, an AI review partner on the right. Local-first; your draft stays a file on your machine. No install needed. npx skribe-editor@latest path/to/draft https://t.co/4qD8Z4UiB6↗