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Same game built twice: Opus alone vs Opus planning + local Qwen coding. 16 min vs 42 min, $2.52 vs $0.62

Context: The poster kept Opus 5.5 for planning and moved code writing to a local Qwen model; their reported result was 42 minutes and $0.62 versus 16 minutes and $2.52 with Opus alone.

From r/ClaudeAI: most of my Opus bill is output tokens, Opus typing out every line of code. so I tried keeping Opus for the thinking and moving the typing to a local model the job: a 5-level pixel platformer from one spec, built twice on a MacBook Pro M5 Max in Fusion mode on Atomic Agent Opus 5.5 alone, the usual…

Source
r/ClaudeAI (reddit.com)
Published
First seen here
Edition
Sunday, October 25, 2026, ranked 32
Status
A claim made in a post or discussion that nobody independent has verified.
Topics
AI, Developer tools
Same game built twice: Opus alone vs Opus planning + local Qwen coding. 16 min vs 42 min, $2.52 vs $0.62 · Keeping Up with Silicon Valley