Model reference · open weights

gigaam-ctc

Available as managed deployment Audio waveletdeboshir · community Speech→text 1 variants 510 dl/mo

gigaam-ctc is an open-weight audio or speech model from waveletdeboshir. 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 bywaveletdeboshir
TypeAudio & music
TaskSpeech→text
Parameters (lead)233M
Runs withtransformers
Released2025-03-18
Popularity510 downloads / month
LicenceOpen weights

About

What gigaam-ctc is

This is an unofficial Transformers wrapper for the original GigaAM-v2-CTC model released by SberDevices.

  • original git https://github.com/salute-developers/GigaAM
Read the full model card

Model info

This is GigaAM-v2-CTC with transformers library interface.

File gigaam_transformers.py contains model, feature extractor and tokenizer classes with usual transformers methods. Model can be initialized with transformers auto classes (see an example below).

Installation

my lib versions:

  • torch 2.7.1
  • torchaudio 2.7.1
  • transformers 4.49.0
  • accelerate 1.5.2

Usage

Usage is same as other transformers ASR models.

from transformers import AutoModel, AutoProcessor
import torch
import torchaudio

# load audio
wav, sr = torchaudio.load("audio.wav")
# resample if necessary
wav = torchaudio.functional.resample(wav, sr, 16000)

# load model and processor
processor = AutoProcessor.from_pretrained("waveletdeboshir/gigaam-ctc", trust_remote_code=True)
model = AutoModel.from_pretrained("waveletdeboshir/gigaam-ctc", trust_remote_code=True)
model.eval()

input_features = processor(wav[0], sampling_rate=16000, return_tensors="pt")

# predict
with torch.no_grad():
    logits = model(**input_features).logits
# greedy decoding
greedy_ids = logits.argmax(dim=-1)
# decode token ids to text
transcription = processor.batch_decode(greedy_ids)[0]

Fine-tune

Fine-tuning Jupyter

From the published model card. Full card on the HuggingFace links in the sidebar.

How it works

How audio & music work

Audio or textinputAudio modelrecognise / synthesiseText or audiooutputSpeech-to-text turns audio into text; text-to-speech and music models turn text into audio.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys gigaam-ctc for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (gigaam-ctc below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/audio/transcriptions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -F model="gigaam-ctc" -F file=@audio.mp3

Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.

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