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IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]

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Re: IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]

#51

Earlier quoted context omitted.

I got their z.ai plan to test alongside my Claude subscription; it feels about on par with something between sonnet 4.0 and sonnet 4.5. It's definitely a few steps below current day Claude, but it's very capable.

When you say "current day Claude" you need to distinguish between the models. Because Opus 4.5 is significantly ahead of Sonnet 4.5.

Yeah, when I say "current day Claude" I'm referring to Opus 4.5, which is what I always use on the max plan.

Re: IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]

#52
post #43

Earlier quoted context omitted.

I got their z.ai plan to test alongside my Claude subscription; it feels about on par with something between sonnet 4.0 and sonnet 4.5. It's definitely a few steps below current day Claude, but it's very capable.

z.ai (Zhipu AI) is a chinese run entity, so presumably China's National Intelligence Law put in place in 2018, which requires data exfiltration back to the government, would apply to the use of this. I wouldn't feel comfortable using any service that has that fundamental requirement.

I wouldn't use any provider: z.ai, Claude, OpenAI, ... if I was concerned about the government obtaining my prompts. If you're doing something where this is a legitimate concern (as opposed to my open source stuff), you should get a local LLM or put a lot of effort into anonymizing yourself and your prompts.

Re: IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]

#53

Better link: https://iquestlab.github.io/ But yes, sadly it looks like the agent cheated during the eval

According to https://github.com/IQuestLab/IQuest-Coder-V1/issues/14#issue... the result is still good after fixing the cheating problem. 76.2% (from 81.4%) which still beats Opus 4.5 (74.4%)!!

What do you mean? Opus 4.5 and GPT 5.2 broke the 80% mark and no other models yet seem to be passing this important milestone.

Re: IQuest-Coder: A new open-source code model beats Claude Sonnet 4.5 and GPT 5.1 [pdf]

#54

Earlier quoted context omitted.

None of these open source models actually can compete with Sonnet when it comes to real life usage. They're all benchmaxxed so in reality they're not "nipping at the heels". Which is a shame.

M2.1 comes close. I'm using it now instead of Sonnet for real work every day, since the price drop is much bigger than the quality drop. And the quality isn't that far off anyway. They're likely one update away from being genuinely better. Also if you're not in a rush, just letting it run in OpenCode a few extra minutes to solve any remaining issues will cost you only a couple cents, but it will likely get the same e…

M2.1 is extremely bad at writing tests and following instructions from a .md, I've found
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