Typhoon2-DeepSeek-R1-70B is a Thai 🇹🇭 reasoning large language model with 70 billion parameters, and it is based on DeepSeek R1 70B Distill and Typhoon2 70B Instruct + SFT merged.

For more details, please see our blog. Demo on opentyphoon.ai.

Paper: https://arxiv.org/abs/2502.09056

*To acknowledge Meta's effort in creating the foundation model and to comply with the license, we explicitly include "llama-3.1" in the model name.

Key Highlights

Advanced Reasoning: Comparable to DeepSeek R1 70B Distill’s reasoning capabilities.
Enhanced Math & Coding Performance: Up to 6 times more accurate than Typhoon2 70B Instruct.
Strong Thai Language Proficiency: Performs similarly to Typhoon2 70B Instruct.
Cross-Domain Reasoning: Adapts to various domains, going beyond math and coding.

Model Description

Model type: A 70B instruct decoder-only model based on Llama architecture.
Requirement: transformers 4.45.0 or newer.
Primary Language(s): Thai 🇹🇭 and English 🇬🇧
License: Llama 3.1 Community License
Demo: opentyphoon.ai.

Performance

Reasoning Performance

General Instruction-Following Performance

Typhoon2 DeepSeek R1 70B General Performance

Recommend system prompt

More controllable | less reasoning capability

You are a helpful assistant named Typhoon that always reasons before answering. First, provide reasoning in English, starting with "Alright!" and ending with the `</think>` token. Then, always respond to the user in the language they use or request. Avoid unnecessary affirmations or filler phrases such as "Alright", "Okay", etc., in the response.

More reasoning capability | less controllable

You are a helpful assistant named Typhoon that always reasons before answering. First, provide reasoning in English start with Alright!, then respond to the user in the language they use or request.

Highest reasoning capability | least controllable

# No system prompt

Usage Example

python

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "scb10x/llama3.1-typhoon2-deepseek-r1-70b-preview"

tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.bfloat16,
    device_map="auto",
)

messages = [
    {"role": "system", "content": 'You are a helpful assistant named Typhoon that always reasons before answering. First, provide reasoning in English, starting with "Alright!" and ending with the `</think>` token. Then, always respond to the user in the language they use or request. Avoid unnecessary affirmations or filler phrases such as "Alright", "Okay", etc., in the response'},
    {"role": "user", "content": "จำนวนเต็มบวกที่น้อยที่สุดที่เป็นผลคูณของ 30 ซึ่งสามารถเขียนได้ด้วยตัวเลข 0 และ 2 เท่านั้นคืออะไร"},
]

input_ids = tokenizer.apply_chat_template(
    messages,
    add_generation_prompt=True,
    return_tensors="pt"
).to(model.device)

terminators = [
    tokenizer.eos_token_id,
]

outputs = model.generate(
    input_ids,
    max_new_tokens=512,
    eos_token_id=terminators,
    do_sample=True,
    temperature=0.7,
    top_p=0.95,
)
response = outputs[0][input_ids.shape[-1]:]
# if you want only response without thinking trace. try `tokenizer.decode(response, skip_special_tokens=True).split('</think>')[-1]` to get only response
print(tokenizer.decode(response, skip_special_tokens=True)) # <think> Okay, .... </think> ดังนั้น จำนวนเต็มบวกที่น้อยที่สุดที่เป็นผลคูณของ 30 และเขียนได้ด้วยตัวเลข 0 และ 2 เท่านั้นคือ 2220 boxed{2220}

Inference Server Hosting Example

bash

pip install vllm
vllm serve scb10x/llama3.1-typhoon2-deepseek-r1-70b-preview --tensor-parallel-size 2 --gpu-memory-utilization 0.95 --max-model-len 16384 --enforce-eager
# using at least 2 80GB gpu eg A100, H100 for hosting 70b model
# to serving longer context (90k), 4 gpu is required (and you can omit --enforce-eager to improve throughput)
# see more information at https://docs.vllm.ai/

Chat template

This model is using the DeepSeek R1 70B Distill chat template, not the Llama 3 template. Be careful.

{% if not add_generation_prompt is defined %}{% set add_generation_prompt = false %}{% endif %}{% set ns = namespace(is_first=false, is_tool=false, is_output_first=true, system_prompt='') %}{%- for message in messages %}{%- if message['role'] == 'system' %}{% set ns.system_prompt = message['content'] %}{%- endif %}{%- endfor %}{{bos_token}}{{ns.system_prompt}}{%- for message in messages %}{%- if message['role'] == 'user' %}{%- set ns.is_tool = false -%}{{'<｜User｜>' + message['content']}}{%- endif %}{%- if message['role'] == 'assistant' and message['content'] is none %}{%- set ns.is_tool = false -%}{%- for tool in message['tool_calls']%}{%- if not ns.is_first %}{{'<｜Assistant｜><｜tool▁calls▁begin｜><｜tool▁call▁begin｜>' + tool['type'] + '<｜tool▁sep｜>' + tool['function']['name'] + '\\n' + '```json' + '\\n' + tool['function']['arguments'] + '\\n' + '```' + '<｜tool▁call▁end｜>'}}{%- set ns.is_first = true -%}{%- else %}{{'\\n' + '<｜tool▁call▁begin｜>' + tool['type'] + '<｜tool▁sep｜>' + tool['function']['name'] + '\\n' + '```json' + '\\n' + tool['function']['arguments'] + '\\n' + '```' + '<｜tool▁call▁end｜>'}}{{'<｜tool▁calls▁end｜><｜end▁of▁sentence｜>'}}{%- endif %}{%- endfor %}{%- endif %}{%- if message['role'] == 'assistant' and message['content'] is not none %}{%- if ns.is_tool %}{{'<｜tool▁outputs▁end｜>' + message['content'] + '<｜end▁of▁sentence｜>'}}{%- set ns.is_tool = false -%}{%- else %}{% set content = message['content'] %}{% if '</think>' in content %}{% set content = content.split('</think>')[-1] %}{% endif %}{{'<｜Assistant｜>' + content + '<｜end▁of▁sentence｜>'}}{%- endif %}{%- endif %}{%- if message['role'] == 'tool' %}{%- set ns.is_tool = true -%}{%- if ns.is_output_first %}{{'<｜tool▁outputs▁begin｜><｜tool▁output▁begin｜>' + message['content'] + '<｜tool▁output▁end｜>'}}{%- set ns.is_output_first = false %}{%- else %}{{'\\n<｜tool▁output▁begin｜>' + message['content'] + '<｜tool▁output▁end｜>'}}{%- endif %}{%- endif %}{%- endfor -%}{% if ns.is_tool %}{{'<｜tool▁outputs▁end｜>'}}{% endif %}{% if add_generation_prompt and not ns.is_tool %}{{'<｜Assistant｜>'}}{% endif %}

Tool use

We don't recommend using tool use on this model.

Intended Uses & Limitations

This model is an reasoning instructional model. However, it’s still undergoing development. It incorporates some level of guardrails, but it still may produce answers that are inaccurate, biased, or otherwise objectionable in response to user prompts. We recommend that developers assess these risks in the context of their use case.

https://twitter.com/opentyphoon

Support

https://discord.gg/us5gAYmrxw

Citation

If you find Typhoon 2 / Typhoon 2 R1 useful for your work, please cite it using:

@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}, 
}

@misc{pipatanakul2025adaptinglanguagespecificllmsreasoning,
      title={Adapting Language-Specific LLMs to a Reasoning Model in One Day via Model Merging - An Open Recipe}, 
      author={Kunat Pipatanakul and Pittawat Taveekitworachai and Potsawee Manakul and Kasima Tharnpipitchai},
      year={2025},
      eprint={2502.09056},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2502.09056}, 
}

scb10x/llama3.1-typhoon2-deepseek-r1-70b-preview