As of: 2026-10-10 23:43 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/p/x-leogao25-2102544078927741369/

# “Opus 5.5 is 60% cheaper per token than GPT-6 Astra.”

leo (@leogao25), X, 2026-09-22.
Source: https://x.com/leogao25/status/2102544078927741369

## Archived text

> Opus 5.5 is 60% cheaper per token than GPT-6 Astra.
> 
> Same prompt, it cost 6.5x more.
> 
> Both built a working Rube Goldberg machine with physics from scratch:
> Opus 5.5: $14.28, 62 min
> GPT-6 Astra: $2.20, 11 min
> 
> Is the woodshop worth an extra $12?

Archived 2026-10-10 via fxtwitter (unofficial).
Counts: 1,420 views, 6 likes, 2 reposts, 1 reply (at fetch time)
Media: https://video.twimg.com/amplify_video/2102543614786043904/vid/avc1/1920x1080/_IwxMaudz3bQHJuD.mp4?tag=29

## Cited in

- Video: [Opus 5.5 vs GPT-6 Astra build the same physics Rube Goldberg machine: cost and time compared](https://postcutoff.com/v/leogao25-opus-5-5-vs-gpt-6-astra-rube-goldberg-cost-x/)