I tested 10 model/harness combinations on the same Three.js task
A developer benchmarked 10 model/harness combinations on a Three.js task; Qwen 3.8 27B on OpenCode scored 95.64% fastest at 8m48s.
The author ran an identical Three.js sci-fi hangar build prompt across 10 model/harness combinations and recorded score, tokens, durations, and tool errors. Qwen 3.8 27B x-high on OpenCode achieved 95.64% in 8m48s, the best fast result, while GLM 5.3 Flash Max on OpenCode scored highest at 96.89% in 20m28s. Other runs included GLM 5.3 Flash, Luna 5.6, SOL 5.6, and Astra 6.0 across Codex Open, OMP Open, OpenCode, DSH, and PTC harnesses, with scores ranging from 78.54% to 96.89%.
- Best score: GLM 5.3 Flash Max on OpenCode at 96.89% (20m28s)
- Fastest strong result: Qwen 3.8 27B x-high on OpenCode, 95.64% in 8m48s
- Worst result: GLM 5.3 Flash Max on OMP Open at 78.54%
- Methodology tracks tokens, reasoning tokens, tool errors, and durations
From the original article
1 min read at alvins82.github.ioI've been testing a simple prompt with different model and harness combinations to work out which one produces best results. I do this in /goal mode. Prompt: Build a single-page Three.
By alvins82 · alvins82.github.io
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