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1from transformers import AutoTokenizer, AutoModelForCausalLM
2import torch
3
4model_id = "scb10x/typhoon2.1-gemma3-4b"
5
6tokenizer = AutoTokenizer.from_pretrained(model_id)
7model = AutoModelForCausalLM.from_pretrained(
8 model_id,
9 torch_dtype=torch.bfloat16,
10 device_map="auto",
11)
12
13messages = [
14 {"role": "system", "content": "You are a male AI assistant named Typhoon created by SCB 10X to be helpful, harmless, and honest. Typhoon is happy to help with analysis, question answering, math, coding, creative writing, teaching, role-play, general discussion, and all sorts of other tasks. Typhoon responds directly to all human messages without unnecessary affirmations or filler phrases like “Certainly!”, “Of course!”, “Absolutely!”, “Great!”, “Sure!”, etc. Specifically, Typhoon avoids starting responses with the word “Certainly” in any way. Typhoon follows this information in all languages, and always responds to the user in the language they use or request. Typhoon is now being connected with a human. Write in fluid, conversational prose, Show genuine interest in understanding requests, Express appropriate emotions and empathy. Also showing information in term that is easy to understand and visualized."},
15 {"role": "user", "content": "ขอสูตรไก่ย่าง"},
16]
17
18input_ids = tokenizer.apply_chat_template(
19 messages,
20 add_generation_prompt=True,
21 return_tensors="pt",
22 enable_thinking=False # Switches between thinking and non-thinking modes. Default is False.
23).to(model.device)
24
25outputs = model.generate(
26 input_ids,
27 max_new_tokens=512,
28 do_sample=True,
29 temperature=0.6,
30 top_p=0.95,
31)
32response = outputs[0][input_ids.shape[-1]:]
33print(tokenizer.decode(response, skip_special_tokens=True))1pip install vllm
2vllm serve scb10x/typhoon2.1-gemma3-4b --max-model-len 16000 --dtype bfloat16 --tool-call-parser pythonic --enable-auto-tool-choice
3# adjust --max-model-len based on your avaliable memory
4# you can use --quantization bitsandbytes to reduce the memory use while trade-off inference speedfrom openai import OpenAI
import json
client = OpenAI(base_url="http://localhost:8000/v1", api_key="dummy")
def get_weather(location: str, unit: str):
return f"Getting the weather for {location} in {unit}..."
tool_functions = {"get_weather": get_weather}
tools = [{
"type": "function",
"function": {
"name": "get_weather",
"description": "Get the current weather in a given location",
"parameters": {
"type": "object",
"properties": {
"location": {"type": "string", "description": "City and state, e.g., 'San Francisco, CA'"},
"unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}
},
"required": ["location", "unit"]
}
}
}]
response = client.chat.completions.create(
model=client.models.list().data[0].id,
messages=[{"role": "user", "content": "What's the weather like in San Francisco?"}],
tools=tools,
tool_choice="auto"
)
tool_call = response.choices[0].message.tool_calls[0].function
print(f"Function called: {tool_call.name}")
print(f"Arguments: {tool_call.arguments}")
print(f"Result: {get_weather(**json.loads(tool_call.arguments))}")1input_ids = tokenizer.apply_chat_template(
2 messages,
3 add_generation_prompt=True,
4 return_tensors="pt",
5 enable_thinking=True # Switches between thinking and non-thinking modes. Default is False.
6).to(model.device)You are a helpful assistant. First, think through the reasoning internally, then present the reasoning within <think>...</think>. After thinking, clearly state a response that addresses the user's request and aligns with their preferences, not just providing a direct answer.1{
2 "model": "scb10x/typhoon2.1-gemma3-4b",
3 "messages": [
4 {"role": "user", "content": "Give me a short introduction to large language models."}
5 ],
6 "chat_template_kwargs": {"enable_thinking": true}
7}from vllm import LLM, SamplingParams
from transformers import AutoTokenizer
class BudgetForcingHandler:
def __init__(self, model_name: str, max_think_token: int, max_ignore=5, temperature=0.6, seed=32):
self.temperature = temperature
self.seed = seed
self.max_think_token = max_think_token
self.max_ignore = max_ignore
self.model = LLM(model_name, dtype='bfloat16', enforce_eager=True)
self.tokenizer = AutoTokenizer.from_pretrained(model_name)
self.alternative_str = '\nAlternatively'
self.system = """You are a reasoning assistant. First, think through the reasoning internally, then present the reasoning within <think>...</think>. After thinking, clearly state the final answer."""
def __call__(self, prompts: List[str]):
count_prompt = len(prompts)
prompts = [self.tokenizer.apply_chat_template([{'role': 'system', 'content': self.system}, {'role': 'user', 'content': f'Please solve this math question, and put your final answer within \\boxed{{}}.\n{p}'}], add_generation_prompt=True, tokenize=False) for p in prompts]
sampling_params = SamplingParams(
max_tokens=self.max_think_token,
seed=self.seed,
stop=["</think>"],
skip_special_tokens=False,
temperature=self.temperature,
)
o = self.model.generate(
prompts,
sampling_params=sampling_params
)
outputs = [output.outputs[0].text for output in o]
token_count = [len(output.outputs[0].token_ids) for output in o]
for i in range(len(prompts)):
prompts[i] = prompts[i] + outputs[i]
for _ in range(self.max_ignore): # Num of times to skip stop token
inference_loop_prompts = []
inference_idx = []
max_inference_token = 0
print('current token count: ', token_count)
for i in range(len(prompts)):
left_budget = self.max_think_token - token_count[i]
if left_budget > 0:
prompts[i] = prompts[i] + self.alternative_str
inference_loop_prompts.append(prompts[i])
inference_idx.append(i)
if left_budget > max_inference_token:
max_inference_token = left_budget
outputs = ['' for _ in range(len(prompts))]
if max_inference_token == 0 or len(inference_loop_prompts) == 0:
break
sampling_params = SamplingParams(
max_tokens=max_inference_token,
min_tokens=1,
seed=self.seed,
stop=["</think>"],
skip_special_tokens=False,
temperature=self.temperature,
)
o = self.model.generate(
inference_loop_prompts,
sampling_params=sampling_params
)
assert len(inference_idx) == len(inference_loop_prompts)
assert len(inference_idx) == len(o)
for i, output in zip(inference_idx, o):
outputs[i] = output.outputs[0].text
for i, idx in enumerate(inference_idx):
token_count[idx] = token_count[idx] + len(o[i].outputs[0].token_ids)
for i in range(len(prompts)):
prompts[i] = prompts[i] + outputs[i]
print('generating answer...')
prompts = [p + '\nTime\'s up. End of thinking process. Will answer immediately.\n</think>' for i, p in enumerate(prompts)]
sampling_params = SamplingParams(
max_tokens=2048,
min_tokens=0,
seed=self.seed,
skip_special_tokens=False,
temperature=self.temperature,
)
o = self.model.generate(
prompts,
sampling_params=sampling_params,
)
for i in range(len(prompts)):
prompts[i] = prompts[i] + o[i].outputs[0].text
assert len(prompts) == count_prompt
return prompts
handler = BudgetForcingHandler("scb10x/typhoon2.1-gemma3-4b", max_think_token=2048)
handler(["How many r in raspberry?"])@misc{typhoon2,
title={Typhoon 2: A Family of Open Text and Multimodal Thai Large Language Models},
author={Kunat Pipatanakul and Potsawee Manakul and Natapong Nitarach and Warit Sirichotedumrong and Surapon Nonesung and Teetouch Jaknamon and Parinthapat Pengpun and Pittawat Taveekitworachai and Adisai Na-Thalang and Sittipong Sripaisarnmongkol and Krisanapong Jirayoot and Kasima Tharnpipitchai},
year={2024},
eprint={2412.13702},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2412.13702},
}