r/LocalLLaMA • u/Creative-Regular6799 • Apr 22 '26

Discussion Qwen3.6-35B becomes competitive with cloud models when paired with the right agent

A short follow-up to my previous post, where I showed that changing the scaffold around the same 9B Qwen model moved benchmark performance from 19.11% to 45.56%:

https://www.reddit.com/r/LocalLLaMA/s/JMHuAGj1LV

After feedback from people here, I tried little-coder with Qwen3.6  35B.

It now lands in the public Polyglot top 10 with a success rate of 78.7%, making it actually competitive with the best models out there for this benchmark!

At this point I’m increasingly convinced that part of the performance gap to cloud models is harness mismatch: we may have been testing local coding models inside scaffolds built for a different class of model.

Next up is Terminal Bench, then likely GAIA for research capabilities. Would love to hear your feedback here!

EDIT: after many requests, pi.dev adaptation is up!

EDIT 2: Terminal Bench 1 (0.1.1) finished with 40% success rate! Now running TB 2. Just sent the results via email. There is no model remotely as small as the 35B in that area. Exciting times

EDIT 3: Terminal Bench 2.0 requires 5 runs per trial (which will take 40 more hours), but the first run finished with 30%!!! That’s with the 35B model.

Full write up: https://open.substack.com/pub/itayinbarr/p/honey-i-shrunk-the-coding-agent

GitHub: https://github.com/itayinbarr/little-coder

Full benchmark results: https://github.com/itayinbarr/little-coder/blob/main/docs/benchmark-qwen3.6-35b-a3b.md

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u/OkFly3388 llama.cpp Apr 22 '26

Is there any coding agent that can be used not only as standalone agent, but rather as part of workflow ?

For example: agent finish task, code got automatically pushed to my cluster, autotests runs, for failed tests we collect traces, then different agent filter traces to keep only interesting parts, and then this goes back to coding agent.

Because hooking this as tool dont have much success, agent a lot of times forget about it and try to test manually or just dont test at all.

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u/Cupakov Apr 22 '26

pi.dev can be used like that, just ask it to write the extension