I tested 10 model/harness combos on the same Three.js task
I tested 10 model/harness combinations on the same Three.js task
A developer benchmarked 10 combinations of AI models and coding harnesses (Codex, OMP, OpenCode, DSH) on a single prompt: build a self-contained Three.js sci-fi hangar with drones, warning lights, and a camera path. Results vary wildly in speed, token usage, and code quality, with some combos taking 37+ minutes and others under 9. The standout: GLM 5.3 Flash Max with OpenCode achieved the highest score (96.89%) in 20 minutes, while Luna 5.6 Max with Codex finished in 9 minutes with a 92.76% score.
I've been testing a simple prompt with different model and harness combinations to work out which one produces best results.
- onion2k
The Astra version seems to have used three.js r170, which is from October 2024. Sol used an even earlier version. GLM's code used the latest version, but I think it's just getting three.js@latest from jsdelivr so it's unlikely to be writing code against that version. Qwen on OpenCode also fetches from jsdelivr, but using a pinned version at r160.
I don't think any of these examples are using things like tone mapping so they're stuck in sRGB (AgX or ACES look much better), they're not using the node materials (good for programmatic texture implementation), and they're not doing anything cool like baking shadow environments or using post-processing effect.
They're nice, but I think they're showing how far behind AI models are on this sort of project rather than how good they are.
- utopiah
I wish there was another column with the estimated cost for each, with a specific date.
Ideally also finding somehow (not sure what would be the right away) what is publicly available before running the test. It's quite a different outcome if there are competitions, e.g. js13k, live code examples from books, even templates, on specific that topic. Visually here the results looks very very similar to the point that I can't help but wonder if it's the result from the short yet relatively descriptive prompt or because some template was always found and relied on.
- alvins82
Btw in my quest for a good desktop codex/claude like app - https://github.com/openchamber/openchamber - this seems to be front-runner. I pair it with OMP via https://github.com/alvins82/omp-openchamber-server/.
I wanted a powerful GUI+harness setup for open models so I could use/test as they came out.
- poilcn
Nice. But these tests raise a question what results are reproducible, the final visual, time, tool calling or it's mostly noise. Like, have you tried same combination or model and harness multiple times?
- rao-v
It’s really interesting how much little choices make the result better or worse. Astra and one of the GLMs added bright lights, and thus looked so much better to my eye.
Genuinely happy with some of the Qwen 3.8 results (especially since I can run that model at Q8).
Interesting to see how much better (at this task) Pi (OMP) is over Opencode as a harness.
I’d love to see a few more with outcomes that are as easy to judge but less subjective.
I’ve got a toy project going to make a fun to watch battle simulator where an LLM (or two if playing vs) has to write programs that control multiple bots (each with their own line of sight and limited battle context) that have to coordinate and fight alongside each other. Goal is to have the LLM update the code based on current situations maybe 5-10 times in a 5 min simulated battle. Exploring even allow the bots to request new programming and score based on number of reprogram steps.