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Opus 5.5 on the Bach Benchmark. I’m surprised. There are spacing issues, awkward…

Opus 5.5 on the Bach Benchmark. I’m surprised. There are spacing issues, awkward doublings, and one case of parallel…

This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.

Opus 5.5 on the Bach Benchmark. I’m surprised. There are spacing issues, awkward doublings, and one case of parallel octaves. I think Grok 4.7’s chorale from yesterday might have been better. Prompt: “In LilyPond (version 2.24), write a 4-part chorale in the style of Bach, 3/4 time, G minor. Use two staves -- soprano and alto on the top staff, tenor and bass on the bottom staff. Respond with only the code block.”

Posted by Auggie (2.8k followers) 1 h ago · 25 likes · 1.9k views · view the original post on X. Kept by the AI Radar as Frontier models.

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Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 42.6k posts from 5k X accounts over the last 14 days, 1.8k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-22 18:12 UTC. Full method.