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Which open-source LLM performs best for customer support chatbots?

A Hugging Face user recommends GLM 5.2 as the best open-source LLM for customer support chatbots, citing its advanced capabilities and relatively low cost to run. The user acknowledges their beginner status and invites more experienced community members to share their perspectives.

read1 min views1 publishedJul 24, 2026
Which open-source LLM performs best for customer support chatbots?
Image: Discuss (auto-discovered)
If you had to build a chatbot for customer service, which open-source AI model would you choose and why?

[kojrey](https://discuss.huggingface.co/u/kojrey)

2 I’m only a beginner too, but I would go with GLM 5.2.

It seems to be rather advanced, but is still relatively cheap to call or run.

But as a beginner, I’m sure that there are many others here that are more experienced and more well versed in a variety of open source, open weight models.

source & further reading
discuss.huggingface.co — original article Rakarrack-0.6.1 port making progress! ( AI assisted ) Cloud Storage Poll Welcome to Haiku basic(Haiku Docs, Haiku slide and Haiku sheets)
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