This model was obtained by quantizing the weights and activations of
Bielik-11B-v.2.2-Instruct
to FP8 data type, ready for inference with vLLM >= 0.5.0 or SGLang.
AutoFP8 is used for quantization. This optimization reduces the number of bits per parameter from 16 to 8, reducing the disk size and GPU memory requirements by approximately 50%.
Only the weights and activations of the linear operators within transformers blocks are quantized. Symmetric per-tensor quantization is applied, in which a single linear scaling maps the FP8 representations of the quantized weights and activations.
FP8 compuation is supported on Nvidia GPUs with compute capability > 8.9 (Ada Lovelace, Hopper).
DISCLAIMER: Be aware that quantised models show reduced response quality and possible hallucinations!
Use with vLLM
This model can be deployed efficiently using the
vLLM
backend, as shown in the example below.
from vllm import LLM, SamplingParams
from transformers import AutoTokenizer
model_id = "speakleash/Bielik-11B-v2.2-Instruct-FP8"
sampling_params = SamplingParams(temperature=0.2, top_p=0.95, max_tokens=4096)
tokenizer = AutoTokenizer.from_pretrained(model_id)
messages = [
{"role": "system", "content": "Jesteś pomocnym asystentem Bielik."},
{"role": "user", "content": "Kim był Mikołaj Kopernik i z czego zasłynął?"},
]
prompts = tokenizer.apply_chat_template(messages, tokenize=False)
llm = LLM(model=model_id, max_model_len=4096)
outputs = llm.generate(prompts, sampling_params)
generated_text = outputs[0].outputs[0].text
print(generated_text)
vLLM aslo supports OpenAI-compatible serving. See the
documentation
for more details.
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