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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

u/Ok_Neighborhood7524

@Ok_Neighborhood7524 · Sep 23

A small per-machine collector syncs local Claude Code usage into a dashboard showing spend by engineer, device, model and day; the author built it after their 11-person team kept being surprised by the monthly bill.

u/VoidEqualZero

@VoidEqualZero · Sep 23

A tool that visualises a project's progress and attributes token spend to each feature or debugging detour, built because daily usage totals did not explain where effort went.

u/oxmannnn

@oxmannnn · Sep 22

Drop in a photo and it is redrawn as one continuous line, with spiral and wander modes, and the site records a video of the line being drawn. Made as a showcase of what Opus 5.5 can do in the browser.

u/mshort3

@mshort3 · Sep 22

A single-shot animated train ride in risograph style, drawn in code with a sampled grand-piano score, built in about 45 minutes. The author shared the full repo so others can have Claude pull it into a new project.

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.