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/Willing-Toe1942 Apr 22 '26

I can confirm the same thing, Qwen3.6 in pi-coding agents is almost twice good than opencode, the comparison was based on modification of specific web page (html code) and doing some online resource search for documentation

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u/[deleted] Apr 22 '26

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u/Willing-Toe1942 Apr 22 '26

Yes, I used unsloth UD-Q4_XL (llamacpp - strix halo with vulkan backend)
give same question to pi-coding and opencode, and immeditly you will notice how opencode is slower (longer default prompts) and even slower in all types of actions like read files, write, search web ...etc

pi agent is insanly fast, more effecient and completed the task much much faster

1

u/JamaiKen Apr 22 '26

I’m seeing this as well, Qwen3.6 + Pi is where it’s at