Question: Is the Qwen 3.6 chat template "broken" as reported by others

#17
by docgerbil - opened

Greetings bottlecapai team,

Do you know if the reported qwen 3.6 chat template issue exists with your project? One popular fix claims their fix "fixes rendering errors, KV cache invalidation, token waste, and fatal agentic stalling in the official Qwen chat templates."

See: https://huggingface.co/froggeric/Qwen-Fixed-Chat-Templates

Any thoughts?

Hello, i tried this template, because iam still facing of premature stoping on vLLM with this model, but it gets worse.
I'm using newest vLLM 0.26.0 with

--tool-call-parser qwen3-coder
 --speculative-config {\"method\":\"mtp\",\"num_speculative_tokens\":2}
 --enable-chunked-prefill"
--max-num-batched-tokens 8192"
--reasoning-parser qwen3"

Hello, i tried this template, because iam still facing of premature stoping on vLLM with this model, but it gets worse.
I'm using newest vLLM 0.26.0 with

--tool-call-parser qwen3-coder
 --speculative-config {\"method\":\"mtp\",\"num_speculative_tokens\":2}
 --enable-chunked-prefill"
--max-num-batched-tokens 8192"
--reasoning-parser qwen3"

I had similar issues. Someone mentioned that thinking should be disabled for instruct mode. I haven't tested yet but it sounds promising.

Do u mean ?

--default-chat-template-kwargs { "preserve_thinkig": true/false} 

At my case it doesnt help any of bool variants, now I'm trying to tweak chat_template, if I will found something I will let u know.

Do u mean ?

--default-chat-template-kwargs { "preserve_thinkig": true/false} 

At my case it doesnt help any of bool variants, now I'm trying to tweak chat_template, if I will found something I will let u know.

Yes.

Thank you for checking.

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