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PodcastAI uses open-source software and models made by others. This page lists the ones we use in our product, who made them, the license each one is under, and where it comes from.

Last checked: November 3, 2026

Component	What We Use It For	Made By	License	Source
YuNet (face_detection_yunet_2023mar)	Finding faces in video, so Studio can frame the person speaking	Wei Wu, Hanyang Peng and Shiqi Yu ("YuNet: A Tiny Millisecond-level Face Detector," Machine Intelligence Research, 2023)	MIT, Copyright (c) 2020 Shiqi Yu	OpenCV Model Zoo
SFace (face_recognition_sface_2021dec)	Telling whether two faces belong to the same person	Yaoyao Zhong, Weihong Deng, Jiani Hu, Dongyue Zhao, Xian Li and Dongchao Wen ("SFace: Sigmoid-Constrained Hypersphere Loss for Robust Face Recognition," IEEE Transactions on Image Processing, 2021)	Apache License 2.0	OpenCV Model Zoo
Light-ASD	Telling who is speaking, from their lips and the sound	Junhua Liao, Haihan Duan, Kanghui Feng, Wanbing Zhao, Yanbing Yang and Liangyin Chen ("A Light Weight Model for Active Speaker Detection," CVPR 2023)	MIT, Copyright (c) 2023 Liao Junhua	github.com/Junhua-Liao/Light-ASD
AVA-ActiveSpeaker	The data Light-ASD's model was trained on	Google Inc.	CC BY 4.0	research.google.com/ava
face-api.js 0.22.2 and its tiny 68-point face landmark model	Finding the points of a face, such as the mouth	Vincent Mühler	MIT, Copyright (c) 2018 Vincent Mühler	github.com/justadudewhohacks/face-api.js
ONNX Runtime (onnxruntime-node 1.29.0)	Running the models above	Microsoft Corporation	MIT, Copyright (c) Microsoft Corporation	github.com/microsoft/onnxruntime
ECAPA-TDNN speaker model (speechbrain/spkrec-ecapa-voxceleb, revision 0f99f2d0ebe89ac095bcc5903c4dd8f72b367286)	Recognizing hosts by their voices	SpeechBrain; the model by Brecht Desplanques, Jenthe Thienpondt and Kris Demuynck ("ECAPA-TDNN: Emphasized Channel Attention, Propagation and Aggregation in TDNN Based Speaker Verification," Interspeech 2020)	Apache License 2.0	huggingface.co/speechbrain/spkrec-ecapa-voxceleb
VoxCeleb1 and VoxCeleb2	The data the speaker model was trained on	Arsha Nagrani, Joon Son Chung, Weidi Xie and Andrew Zisserman (Visual Geometry Group, University of Oxford)	CC BY-SA 4.0	robots.ox.ac.uk/~vgg/data/voxceleb
SpeechBrain 1.0.3	Running the speaker model	Mirco Ravanelli, Titouan Parcollet and others	Apache License 2.0	github.com/speechbrain/speechbrain
PyTorch 2.5.1 and torchaudio 2.5.1	Processing audio and running the speaker model’s calculations	The PyTorch team	BSD 3-Clause (PyTorch) and BSD 2-Clause (torchaudio)	github.com/pytorch/pytorch
NumPy	Calculations with voice measurements	Travis E. Oliphant and others	BSD 3-Clause (with 0BSD, MIT, Zlib and CC0 parts)	github.com/numpy/numpy
huggingface_hub 0.25.2	Downloading the speaker model during installation	Hugging Face, Inc.	Apache License 2.0	github.com/huggingface/huggingface_hub
node-canvas (canvas 3.2.3)	Reading the frames of a video	TJ Holowaychuk and contributors	MIT	github.com/Automattic/node-canvas
@napi-rs/canvas 0.1.100	Drawing the cards in your videos	LongYinan and contributors	MIT, Copyright (c) 2020 [email protected]	github.com/Brooooooklyn/canvas
Skia (in @napi-rs/canvas)	Drawing the cards in your videos	Google Inc. and the Skia authors	BSD 3-Clause License, Copyright (c) 2011 Google Inc.	skia.org
Heroicons (@heroicons/vue 2.2.0)	The app's icons	Tailwind Labs, Inc.	MIT, Copyright (c) Tailwind Labs, Inc.	github.com/tailwindlabs/heroicons
Inter	The app's text, the text on episode covers we make, and captions and titles in your videos, including your show's name on intro and outro audiograms	The Inter Project Authors (Rasmus Andersson), Copyright 2016 and 2020	SIL Open Font License 1.1	github.com/rsms/inter
Trueno	Captions in your videos	Julieta Ulanovsky, Copyright 2014; design changes and new weights 2015, Jasper (Cannot Into Space Fonts)	SIL Open Font License 1.1	zkysky.com.ar
Wine Tahoma	Captions in your videos	Larry Snyder, part of Wine; Copyright (c) 2004 Larry Snyder, Based on Bitstream Vera Sans Copyright (c) 2003 by Bitstream, Inc.	GNU Lesser General Public License 2.1 or later	winehq.org
Bebas Neue	Captions and titles in your videos, and the text on episode covers we make	Dharma Type, Copyright 2010	SIL Open Font License 1.1	Google Fonts
Lora	Captions, titles and cards in your videos	The Lora Project Authors, Copyright 2011, with Reserved Font Name "Lora"	SIL Open Font License 1.1	github.com/cyrealtype/Lora-Cyrillic
Playfair Display	Cards in your videos	The Playfair Display Project Authors, Copyright 2017, with Reserved Font Name "Playfair Display"	SIL Open Font License 1.1	github.com/clauseggers/Playfair-Display
Montserrat	The text on episode covers we make	The Montserrat Project Authors (Julieta Ulanovsky), Copyright 2011	SIL Open Font License 1.1	github.com/JulietaUla/Montserrat
Roboto	The text on episode covers we make	Google Inc., Copyright 2011	Apache License 2.0	github.com/googlefonts/roboto
Other caption and title fonts	The fonts you choose for captions and titles in Studio	Each font family's own authors	Each family's own SIL Open Font License 1.1 or Apache License 2.0, as published	Google Fonts

About the models

YuNet, SFace: used as published.
Light-ASD: we use the model weights its authors trained on AVA-ActiveSpeaker, exported to ONNX format.
AVA-ActiveSpeaker: we use only the model weights trained on this dataset by Light-ASD's authors, exported to ONNX format. We don't use or redistribute the dataset itself. This use is not endorsed by Google. The dataset is provided as-is, as its license states.
ECAPA-TDNN speaker model: we use the published model without modification.
VoxCeleb1 and VoxCeleb2: we use model weights that SpeechBrain trained on these datasets. We do not use or redistribute the datasets themselves. The CC BY-SA 4.0 license listed above applies to the dataset metadata, not the audio.

The MIT License (for the components above under MIT, with each one's copyright as listed):

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

BSD 3-Clause License

Skia:

Copyright (c) 2011 Google Inc. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PyTorch 2.5.1:

From PyTorch:

Copyright (c) 2016- Facebook, Inc (Adam Paszke)
Copyright (c) 2014- Facebook, Inc (Soumith Chintala)
Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert)
Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu)
Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu)
Copyright (c) 2011-2013 NYU (Clement Farabet)
Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, Iain Melvin, Jason Weston)
Copyright (c) 2006 Idiap Research Institute (Samy Bengio)
Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, Samy Bengio, Johnny Mariethoz)

From Caffe2:

Copyright (c) 2016-present, Facebook Inc. All rights reserved.

All contributions by Facebook:
Copyright (c) 2016 Facebook Inc.

All contributions by Google:
Copyright (c) 2015 Google Inc.
All rights reserved.

All contributions by Yangqing Jia:
Copyright (c) 2015 Yangqing Jia
All rights reserved.

All contributions by Kakao Brain:
Copyright 2019-2020 Kakao Brain

All contributions by Cruise LLC:
Copyright (c) 2022 Cruise LLC.
All rights reserved.

All contributions by Arm:
Copyright (c) 2021, 2023-2024 Arm Limited and/or its affiliates

All contributions from Caffe:
Copyright(c) 2013, 2014, 2015, the respective contributors
All rights reserved.

All other contributions:
Copyright(c) 2015, 2016 the respective contributors
All rights reserved.

Caffe2 uses a copyright model similar to Caffe: each contributor holds copyright over their contributions to Caffe2. The project versioning records all such contribution and copyright details. If a contributor wants to further mark their specific copyright on a particular contribution, they should indicate their copyright solely in the commit message of the change when it is committed.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories America and IDIAP Research Institute nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

NumPy:

Copyright (c) 2005-2025, NumPy Developers.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the NumPy Developers nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

BSD 2-Clause License

torchaudio 2.5.1:

Copyright (c) 2017 Facebook Inc. (Soumith Chintala),
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

We update this page and its date when the software and models we use change. On October 16, 2026, the app stopped using ffmpeg.wasm, and it was removed.