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unsloth/
Falcon-H1-1.5B-Deep-Instruct

Name: Falcon-H1-1.5B-Deep-Instruct
Availability: InStock

tiiuae/Falcon-H1-1.5B-Deep-Instruct

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[!NOTE] Includes our chat template fixes!
For llama.cpp, use --jinja

Unsloth Dynamic 2.0 achieves superior accuracy & outperforms other leading quants.

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TL;DR
Model Details
Training Details
Usage
Evaluation
Citation

TL;DR

Model Details

Model Description

Developed by: https://www.tii.ae
Model type: Causal decoder-only
Architecture: Hybrid Transformers + Mamba architecture
Language(s) (NLP): English, Multilingual
License: Falcon-LLM License

Training details

For more details about the training protocol of this model, please refer to the Falcon-H1 technical blogpost.

Usage

Currently to use this model you can either rely on Hugging Face transformers, vLLM or llama.cpp library.

Inference

Make sure to install the latest version of transformers or vllm, eventually install these packages from source:

pip install git+https://github.com/huggingface/transformers.git

For vLLM, make sure to install vllm>=0.9.0:

pip install "vllm>=0.9.0"

🤗 transformers

Refer to the snippet below to run H1 models using 🤗 transformers:

python

import torch
from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "tiiuae/Falcon-H1-1B-Base"

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

# Perform text generation

vLLM

For vLLM, simply start a server by executing the command below:

# pip install vllm>=0.9.0
vllm serve tiiuae/Falcon-H1-1B-Instruct --tensor-parallel-size 2 --data-parallel-size 1

`llama.cpp`

You can find all GGUF files compatible with llama.cpp under our official collection

Evaluation

Falcon-H1 series perform very well on a variety of tasks, including reasoning tasks.

Tasks	Falcon-H1-1.5B-deep	Qwen3-1.7B	Qwen2.5-1.5B	Gemma3-1B	Llama3.2-1B	Falcon3-1B
General
BBH	54.43	35.18	42.41	35.86	33.21	34.47
ARC-C	43.86	34.81	40.53	34.13	34.64	43.09
TruthfulQA	50.48	49.39	47.05	42.17	42.08	42.31
HellaSwag	65.54	49.27	62.23	42.24	55.3	58.53
MMLU	66.11	57.04	59.76	40.87	45.93	46.1
Math
GSM8k	82.34	69.83	57.47	42.38	44.28	44.05
MATH-500	77.8	73.0	48.4	45.4	13.2	19.8
AMC-23	56.56	46.09	24.06	19.22	7.19	6.87
AIME-24	14.37	12.5	2.29	0.42	1.46	0.41
AIME-25	11.04	8.12	1.25	1.25	0.0	0.21
Science
GPQA	33.22	27.68	26.26	28.19	26.59	26.76
GPQA_Diamond	40.57	33.33	25.59	21.55	25.08	31.31
MMLU-Pro	41.89	23.54	28.35	14.46	16.2	18.49
MMLU-stem	67.3	54.3	54.04	35.39	39.16	39.64
Code
HumanEval	73.78	67.68	56.1	40.85	34.15	22.56
HumanEval+	68.9	60.96	50.61	37.2	29.88	20.73
MBPP	68.25	58.73	64.81	57.67	33.6	20.63
MBPP+	56.61	49.74	56.08	50.0	29.37	17.2
LiveCodeBench	23.87	14.87	12.52	5.09	2.35	0.78
CRUXEval	52.32	18.88	34.76	12.7	0.06	15.58
Instruction Following
IFEval	83.5	70.77	45.33	61.48	55.34	54.26
Alpaca-Eval	27.12	21.89	9.54	17.87	9.38	6.98
MTBench	8.53	7.61	7.1	7.03	6.37	6.03
LiveBench	36.83	40.73	21.65	18.79	14.97	14.1

You can check more in detail on our our release blogpost, detailed benchmarks.

Useful links

View our release blogpost.
Feel free to join our discord server if you have any questions or to interact with our researchers and developers.

Citation

If the Falcon-H1 family of models were helpful to your work, feel free to give us a cite.

@misc{tiifalconh1,
    title = {Falcon-H1: A Family of Hybrid-Head Language Models Redefining Efficiency and Performance},
    url = {https://falcon-lm.github.io/blog/falcon-h1},
    author = {Falcon-LLM Team},
    month = {May},
    year = {2025}
}

unsloth/Falcon-H1-1.5B-Deep-Instruct

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