đ Elastic model: DeepSeek-R1-Distill-Llama-8B. Fastest and most flexible models for self-serving.
Elastic models are produced by TheStage AI ANNA: Automated Neural Networks Accelerator. ANNA enables you to control model size, latency, and quality with a simple slider movement. For each model, ANNA generates a series of optimized models:
- XL: A mathematically equivalent neural network optimized by our DNN compiler.
- L: A near lossless model with less than 1% degradation on corresponding benchmarks.
- M: A faster model with accuracy degradation less than 1.5%.
- S: The fastest model with accuracy degradation less than 2%.
Goals of elastic models:
- Offer flexibility in cost - quality selection for inference.
- Provide clear quality and latency benchmarks.
- Provide an interface for HF libraries (transformers and diffusers) with a single line of code.
- Provide models supported on a wide range of pre - compiled hardware, requiring no JIT.
- Provide the best models and service for self - hosting.
â ī¸ Important Note
It's important to note that specific quality degradation can vary from model to model. For instance, with an S model, you can have 0.5% degradation as well.

đ Quick Start
đĻ Installation
To work with our models, follow these steps:
- Install the necessary packages in your terminal:
pip install thestage
pip install elastic_models[nvidia]\
--index-url https://thestage.jfrog.io/artifactory/api/pypi/pypi-thestage-ai-production/simple\
--extra-index-url https://pypi.nvidia.com\
--extra-index-url https://pypi.org/simple
pip install flash_attn==2.7.3 --no-build-isolation
pip uninstall apex
- Go to app.thestage.ai, log in, and generate an API token from your profile page. Then set up the API token as follows:
thestage config set --api-token <YOUR_API_TOKEN>
đģ Usage Examples
Basic Usage
To infer our models, you just need to replace transformers
import with elastic_models.transformers
:
import torch
from transformers import AutoTokenizer
from elastic_models.transformers import AutoModelForCausalLM
model_name = "deepseek-ai/DeepSeek-R1-Distill-Llama-8B"
hf_token = ''
device = torch.device("cuda")
tokenizer = AutoTokenizer.from_pretrained(
model_name, token=hf_token
)
model = AutoModelForCausalLM.from_pretrained(
model_name,
token=hf_token,
torch_dtype=torch.bfloat16,
attn_implementation="sdpa",
mode='S'
).to(device)
model.generation_config.pad_token_id = tokenizer.eos_token_id
prompt = "Describe basics of DNNs quantization."
messages = [
{
"role": "system",
"content": "You are a search bot, answer on user text queries."
},
{
"role": "user",
"content": prompt
}
]
chat_prompt = tokenizer.apply_chat_template(
messages, add_generation_prompt=True, tokenize=False
)
inputs = tokenizer(chat_prompt, return_tensors="pt")
inputs.to(device)
with torch.inference_mode():
generate_ids = model.generate(**inputs, max_length=500)
input_len = inputs['input_ids'].shape[1]
generate_ids = generate_ids[:, input_len:]
output = tokenizer.batch_decode(
generate_ids,
skip_special_tokens=True,
clean_up_tokenization_spaces=False
)[0]
print(f"# Q:\n{prompt}\n")
print(f"# A:\n{output}\n")
System Requirements
- GPUs: H100, L40s
- CPU: AMD, Intel
- Python: 3.10 - 3.12
đ Documentation
Benchmarks
Benchmarking is one of the most important procedures during model acceleration. We aim to provide clear performance metrics for models using our algorithms. The W8A8, int8
column indicates that we applied W8A8 quantization with int8 data type to all linear layers and used the same calibration data as for ANNA. The S model achieves practically identical speed but much higher quality, as ANNA knows how to improve quantization quality on sensitive layers!
Quality benchmarks
Metric/Model |
S |
M |
L |
XL |
Original |
W8A8, int8 |
arc_challenge |
38.70 |
40.40 |
40.40 |
40.50 |
40.50 |
19.30 |
mmlu |
52.70 |
54.70 |
55.50 |
54.80 |
54.80 |
47.70 |
piqa |
76.30 |
75.90 |
75.70 |
76.10 |
76.10 |
55.00 |
winogrande |
66.60 |
66.20 |
67.80 |
68.00 |
68.00 |
56.10 |
- MMLU: Evaluates general knowledge across 57 subjects including science, humanities, engineering, and more. Shows model's ability to handle diverse academic topics.
- PIQA: Evaluates physical commonsense reasoning through questions about everyday physical interactions. Shows model's understanding of real - world physics concepts.
- Arc Challenge: Evaluates grade - school level multiple - choice questions requiring reasoning. Shows model's ability to solve complex reasoning tasks.
- Winogrande: Evaluates commonsense reasoning through sentence completion tasks. Shows model's capability to understand context and resolve ambiguity.
Latency benchmarks
100 input/300 output; tok/s:
GPU/Model |
S |
M |
L |
XL |
Original |
W8A8, int8 |
H100 |
194 |
191 |
161 |
131 |
58 |
198 |
L40S |
72 |
70 |
56 |
44 |
40 |
74 |
đ License
This project is licensed under the Apache 2.0 license.
đ Links