Splitting a game level between Opus 5.5 and Sonnet 5.5
Following Anthropic's "Sonnet is a generalist, Opus is the expert" split, Opus 5.5 handled level geometry and art direction in 17 sessions while Sonnet 5.5 did materials, props, UI and sounds in 14, totaling about $88.
An Anthropic webinar on how Claude Code spends tokens puts the model split in one line: "Sonnet is a really good generalist. Opus is the expert". I built a game level that way. Opus 5.5 took the hard geometry and art direction: 17 sessions, $70. Sonnet 5.5 took the clear, checkable jobs (materials, props, UI, sounds): 14 sessions, $17, most under 10 minutes. Every session was a fresh chat with one short brief, 31 in all, about $88 at list price. Every brief and the script that queues them are in the article below. · 00:06 - a bigger model costs more on every token · 00:39 - Sonnet generalist, Opus expert · 01:52 - what sits in your context · 02:28 - CLAUDE.md vs skills · 03:18 - old instructions go stale with new models Which part of your build do you still give to the biggest model?
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