diff --git a/qwq_tokenizer_config.json b/qwq_tokenizer_config.json
new file mode 100644
index 0000000..35c4b18
--- /dev/null
+++ b/qwq_tokenizer_config.json
@@ -0,0 +1,241 @@
+{
+  "add_bos_token": false,
+  "add_prefix_space": false,
+  "added_tokens_decoder": {
+    "151643": {
+      "content": "<|endoftext|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151644": {
+      "content": "<|im_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151645": {
+      "content": "<|im_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151646": {
+      "content": "<|object_ref_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151647": {
+      "content": "<|object_ref_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151648": {
+      "content": "<|box_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151649": {
+      "content": "<|box_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151650": {
+      "content": "<|quad_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151651": {
+      "content": "<|quad_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151652": {
+      "content": "<|vision_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151653": {
+      "content": "<|vision_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151654": {
+      "content": "<|vision_pad|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151655": {
+      "content": "<|image_pad|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151656": {
+      "content": "<|video_pad|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "151657": {
+      "content": "<tool_call>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151658": {
+      "content": "</tool_call>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151659": {
+      "content": "<|fim_prefix|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151660": {
+      "content": "<|fim_middle|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151661": {
+      "content": "<|fim_suffix|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151662": {
+      "content": "<|fim_pad|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151663": {
+      "content": "<|repo_name|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151664": {
+      "content": "<|file_sep|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151665": {
+      "content": "<tool_response>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151666": {
+      "content": "</tool_response>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151667": {
+      "content": "<think>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    },
+    "151668": {
+      "content": "</think>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": false
+    }
+  },
+  "additional_special_tokens": [
+    "<|im_start|>",
+    "<|im_end|>",
+    "<|object_ref_start|>",
+    "<|object_ref_end|>",
+    "<|box_start|>",
+    "<|box_end|>",
+    "<|quad_start|>",
+    "<|quad_end|>",
+    "<|vision_start|>",
+    "<|vision_end|>",
+    "<|vision_pad|>",
+    "<|image_pad|>",
+    "<|video_pad|>"
+  ],
+  "bos_token": null,
+  "chat_template": "{%- for message in messages %}\n    {{- '<|im_start|>' + message.role + '\\n' + message.content + '<|im_end|>\\n' }}\n{%- endfor %}\n{%- if add_generation_prompt %}\n    {{- '<|im_start|>assistant\\n' }}\n{%- endif %}",
+  "clean_up_tokenization_spaces": false,
+  "eos_token": "<|im_end|>",
+  "errors": "replace",
+  "extra_special_tokens": {},
+  "model_max_length": 131072,
+  "pad_token": "<|vision_pad|>",
+  "padding_side": "left",
+  "split_special_tokens": false,
+  "tokenizer_class": "Qwen2Tokenizer",
+  "unk_token": null
+}
diff --git a/sia/llm_engine/qwq_llm_engine.py b/sia/llm_engine/qwq_llm_engine.py
index e926e73..e4e6e02 100644
--- a/sia/llm_engine/qwq_llm_engine.py
+++ b/sia/llm_engine/qwq_llm_engine.py
@@ -2,6 +2,7 @@ from pathlib import Path
 from threading import Thread
 from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline, TextIteratorStreamer, BitsAndBytesConfig
 from typing import Callable, Iterator
+import json
 import torch
 
 from . import LlmEngine
@@ -26,6 +27,9 @@ class QwQLlmEngine(LlmEngine):
         self._temperature = temperature
         self._token_limit = token_limit
 
+        with open('/root/sia/qwq_tokenizer_config.json', 'r') as f:
+            tokenizer_config = json.load(f)
+
         quantization_config = BitsAndBytesConfig(
             load_in_4bit=True,
             bnb_4bit_compute_dtype=torch.bfloat16,
@@ -41,7 +45,10 @@ class QwQLlmEngine(LlmEngine):
             quantization_config=quantization_config,
         )
 
-        self._tokenizer = AutoTokenizer.from_pretrained(model_path)
+        self._tokenizer = AutoTokenizer.from_pretrained(
+            model_path,
+            tokenizer_config=tokenizer_config,
+        )
 
         self._pipline = pipeline(
             "text-generation",
@@ -92,7 +99,7 @@ class QwQLlmEngine(LlmEngine):
             
         generation_thread.start()
 
-        for text in util.stop_before_value(streamer, '<|eot_id|>'):
+        for text in util.stop_before_value(streamer, self._tokenizer.eos_token):
             yield text
             if should_stop():
                 break
diff --git a/tools/train/train/qwq.py b/tools/train/train/qwq.py
index e22152b..8a3d3f8 100644
--- a/tools/train/train/qwq.py
+++ b/tools/train/train/qwq.py
@@ -8,10 +8,11 @@ from unsloth import FastLanguageModel, is_bfloat16_supported
 
 from dataclasses import dataclass
 from pathlib import Path
-from transformers import TrainingArguments
-from trl import SFTTrainer, DataCollatorForCompletionOnlyLM
+from transformers import AutoTokenizer, TrainingArguments
+from trl import SFTTrainer
 from typing import Optional, List
 import argparse
+import json
 import os
 
 from .dataset import Dataset
@@ -73,13 +74,22 @@ def main():
     max_seq_length = 2048 # Can increase for longer reasoning traces
     lora_rank = 64 # Larger rank = smarter, but slower
 
-    model, tokenizer = FastLanguageModel.from_pretrained(
+    with open('/root/sia/qwq_tokenizer_config.json', 'r') as f:
+        tokenizer_config = json.load(f)
+
+    tokenizer = AutoTokenizer.from_pretrained(
+        args.base_model,
+        tokenizer_config=tokenizer_config,
+    )
+
+    model, _returned_tokenizer = FastLanguageModel.from_pretrained(
         model_name = args.base_model,
         max_seq_length = max_seq_length,
         load_in_4bit = True, # False for LoRA 16bit
         fast_inference = True, # Enable vLLM fast inference
         max_lora_rank = lora_rank,
         gpu_memory_utilization = 0.5, # Reduce if out of memory
+        tokenizer = tokenizer,
     )
 
     model = FastLanguageModel.get_peft_model(