From bf3cba8a1aadd8bb190d7785ace0d1fdb0b23048 Mon Sep 17 00:00:00 2001
From: Xuan Son Nguyen <son@huggingface.co>
Date: Wed, 9 Jul 2025 01:14:31 +0200
Subject: [PATCH] convert : fix smollm3 jinja template

---
 convert_hf_to_gguf.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/convert_hf_to_gguf.py b/convert_hf_to_gguf.py
index 3f3dfb416c1fc..5d12d4799fafc 100755
--- a/convert_hf_to_gguf.py
+++ b/convert_hf_to_gguf.py
@@ -6692,6 +6692,16 @@ def prepare_tensors(self):
 class SmolLM3Model(LlamaModel):
     model_arch = gguf.MODEL_ARCH.SMOLLM3
 
+    def set_vocab(self):
+        super().set_vocab()
+        # remove unsupported array slicing in chat template
+        # ref: https://huggingface.co/ggml-org/SmolLM3-3B-GGUF/discussions/1
+        from transformers import AutoTokenizer
+        tokenizer = AutoTokenizer.from_pretrained(self.dir_model)
+        if tokenizer.chat_template is not None:
+            chat_template = tokenizer.chat_template.replace("[:]", "")
+            self.gguf_writer.add_chat_template(chat_template)
+
 ###### CONVERSION LOGIC ######