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Anthropic· Released Sep 22

Claude Opus 5.5

First model in Anthropic's Claude 5.5 family. Positioned for agentic coding, knowledge work and long tasks; priced at $4/$20 per million input/output tokens, about 30% faster output than Opus 5, and top scores on Anthropic's behavioral alignment audit.

Warehouse management software styled like a strategy gameOct 3

Entries

makevoid

@makevoid · Sep 26

Claude Code plugin plus Ruby toolkit that plans and assembles motion-graphics music videos from a supplied track and a brief, optionally calling external image, video and audio models.

Ethan Mollick

@emollick · Sep 26

Opus 5.5 produced a video explaining recursion where every nested explanation switches to a completely different visual style, a playful demo of the model directing code-drawn animation from a short brief.

Stefan 3D AI

@Stefan_3D_AI · Sep 28

A spec-driven build where Opus 5.5 drove Unity, Blender and Higgsfield through custom skills; the creator walks through the workflow in a video.

KANA|東京AI映像

@KanaWorks_AI · Sep 24

A Tokyo AI video creator shows a lightweight 3D game made with Godot and Opus 5.5.

Moritz Kremb

@moritzkremb · Sep 24

Told to pick a SaaS and make a professional launch video, Opus 5.5 produced the whole thing from a single prompt.

Axton

@AxtonLiu · Sep 23

An 83-second portrait voice-over was converted into a line-art animated explainer with the original audio and captions kept, run in a clean Claude Code session.

ledbetterljoshua

@ledbetterljoshua · Sep 23

A video with a custom GPU brushstroke renderer, made by Opus 5.5 as a visual companion to the interpretability paper.

✌︎ frederik ✌︎

@froessell · Sep 26

Opus 5.5 built a mobile arcade chase game in Unity from a product requirements doc, using the TopDown Engine and ChatGPT-made art.

Jurgen Ploeger

@JurgenPloeger · Sep 27

A designer gave Opus 5.5 his own handmade product launch film plus the Figma file and had it rebuild the motion in code.

jack friks

@jackfriks · Sep 24

Opus 5.5 animated a short film of the author's app using new redesign assets, with sound also generated by the model, no edits.

OminousIndustries

@OminousIndustries · Sep 22

A native C++ skateboarding game from one model, shared as an open repository.

Daniel Nguyen

@daniel_nguyenx · Sep 27

Daniel gave three models the same task on his Mac app and found Opus 5.5 produced the best Apple HIG and Liquid Glass build.

Claude Opus 5.5: quick answers

What can you build with Claude Opus 5.5?
People have published 201 public builds made with Claude Opus 5.5. The most common uses are animation videos (58), games (45), 3d graphics (22), design (14) and education (13).
What are the best Claude Opus 5.5 GitHub repos?
The most-starred open-source Claude Opus 5.5 projects in the index are "I'm Upping My P(doom)" music video, full source, Awesome Opus 5.5 Videos (prompt gallery) and LiveNerf: daily check for Opus 5.5 degradation.
Are there Claude Opus 5.5 demo videos?
Yes: 1 video show Claude Opus 5.5 in use, each linked to the original post.
Where do people share Claude Opus 5.5 projects?
Mostly on X, Reddit and GitHub, from 186 creators between Sep 22 and Oct 7.