Model reference · open weights
hubert is an open-weight embedding model from bosonai. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | bosonai |
|---|---|
| Type | Embedding models |
| Task | Embeddings |
| Parameters (lead) | 94M |
| Runs with | transformers |
| Released | 2025-07-19 |
| Popularity | 38k downloads / month |
| Licence | Open weights |
About
A general-purpose HuBERT-Base checkpoint released by Boson AI, used inside the Higgs Audio Tokenizer as the semantic teacher.
AutoModel with trust_remote_code=Trueoutput_hidden_states=True)The Higgs Audio Tokenizer distills semantic features from this HuBERT into its semantic branch. From boson_multimodal/audio_processing/higgs_audio_tokenizer.py (semantic_techer="hubert_base_general"):
from transformers import AutoModel
semantic_model = AutoModel.from_pretrained("bosonai/hubert_base", trust_remote_code=True)
# 16 kHz, 768-dim semantic features, all hidden layers consumed by the tokenizer
import torch
import torchaudio
from transformers import AutoModel
model = AutoModel.from_pretrained("bosonai/hubert_base", trust_remote_code=True).eval()
waveform, sr = torchaudio.load("audio.wav")
if sr != 16000:
waveform = torchaudio.functional.resample(waveform, sr, 16000)
with torch.no_grad():
out = model(waveform, output_hidden_states=True)
# out.last_hidden_state: (B, T, 768)
# out.hidden_states: tuple of (B, T, 768) for each of the 13 layers (embedding + 12 transformer blocks)
Apache 2.0.
From the published model card. Full card on the HuggingFace links in the sidebar.
Using it via the API
Once AxForge deploys hubert for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (hubert below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/embeddings \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"hubert","input":"text to embed"}'
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.