This narrated lesson adapts Corequisite Skills for Introductory Statistics, a custom course edition compiled by XYZ Homework from OpenStax Contemporary Mathematics, Elementary Algebra 2e, Intermediate Algebra 2e, and Prealgebra 2e. OpenStax, Rice University; complete originals: https://openstax.org/ . The course outline is adapted from Larry Green, Support Course for Elementary Statistics, LibreTexts, https://stats.libretexts.org/Bookshelves/Introductory_Statistics/Support_Course_for_Elementary_Statistics , under Creative Commons Attribution 4.0, https://creativecommons.org/licenses/by/4.0/ . Lessons 2.4 and 6.7 are authored by XYZ Homework. This free lesson adaptation is distributed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0, https://creativecommons.org/licenses/by-nc-sa/4.0/ . XYZ Homework added the narrated explanation, diagrams, captions, transcript, and thinking pause; the course edition records its source corrections.
Narration generated locally using Kokoro-82M v1.0, voice af_heart. Model and inference code: Apache-2.0. Retain and link the official model card, its training acknowledgements, and Apache-2.0 licence.
Primary sources:
https://huggingface.co/hexgrad/Kokoro-82M
https://huggingface.co/hexgrad/Kokoro-82M/blob/f3ff3571791e39611d31c381e3a41a3af07b4987/VOICES.md
https://github.com/hexgrad/kokoro/blob/main/LICENSE
Official model card and training acknowledgements:
---
license: apache-2.0
language:
- en
base_model:
- yl4579/StyleTTS2-LJSpeech
pipeline_tag: text-to-speech
---
**Kokoro** is an open-weight TTS model with 82 million parameters. Despite its lightweight architecture, it delivers comparable quality to larger models while being significantly faster and more cost-efficient. With Apache-licensed weights, Kokoro can be deployed anywhere from production environments to personal projects.
🐈 **GitHub**: https://github.com/hexgrad/kokoro
🚀 **Demo**: https://hf.co/spaces/hexgrad/Kokoro-TTS
> [!NOTE]
> As of April 2025, the market rate of Kokoro served over API is **under $1 per million characters of text input**, or under $0.06 per hour of audio output. (On average, 1000 characters of input is about 1 minute of output.) Sources: [ArtificialAnalysis/Replicate at 65 cents per M chars](https://artificialanalysis.ai/text-to-speech/model-family/kokoro#price) and [DeepInfra at 80 cents per M chars](https://deepinfra.com/hexgrad/Kokoro-82M).
>
> This is an Apache-licensed model, and Kokoro has been deployed in numerous projects and commercial APIs. We welcome the deployment of the model in real use cases.
> [!CAUTION]
> Fake websites like kokorottsai_com (snapshot: https://archive.ph/nRRnk) and kokorotts_net (snapshot: https://archive.ph/60opa) are likely scams masquerading under the banner of a popular model.
>
> Any website containing "kokoro" in its root domain (e.g. kokorottsai_com, kokorotts_net) is **NOT owned by and NOT affiliated with this model page or its author**, and attempts to imply otherwise are red flags.
- [Releases](#releases)
- [Usage](#usage)
- [EVAL.md](https://huggingface.co/hexgrad/Kokoro-82M/blob/main/EVAL.md) ↗️
- [SAMPLES.md](https://huggingface.co/hexgrad/Kokoro-82M/blob/main/SAMPLES.md) ↗️
- [VOICES.md](https://huggingface.co/hexgrad/Kokoro-82M/blob/main/VOICES.md) ↗️
- [Model Facts](#model-facts)
- [Training Details](#training-details)
- [Creative Commons Attribution](#creative-commons-attribution)
- [Acknowledgements](#acknowledgements)
### Releases
| Model | Published | Training Data | Langs & Voices | SHA256 |
| ----- | --------- | ------------- | -------------- | ------ |
| **v1.0** | **2025 Jan 27** | **Few hundred hrs** | [**8 & 54**](https://huggingface.co/hexgrad/Kokoro-82M/blob/main/VOICES.md) | `496dba11` |
| [v0.19](https://huggingface.co/hexgrad/kLegacy/tree/main/v0.19) | 2024 Dec 25 | <100 hrs | 1 & 10 | `3b0c392f` |
| Training Costs | v0.19 | v1.0 | **Total** |
| -------------- | ----- | ---- | ----- |
| in A100 80GB GPU hours | 500 | 500 | **1000** |
| average hourly rate | $0.80/h | $1.20/h | **$1/h** |
| in USD | $400 | $600 | **$1000** |
### Usage
You can run this basic cell on [Google Colab](https://colab.research.google.com/). [Listen to samples](https://huggingface.co/hexgrad/Kokoro-82M/blob/main/SAMPLES.md). For more languages and details, see [Advanced Usage](https://github.com/hexgrad/kokoro?tab=readme-ov-file#advanced-usage).
```py
!pip install -q kokoro>=0.9.2 soundfile
!apt-get -qq -y install espeak-ng > /dev/null 2>&1
from kokoro import KPipeline
from IPython.display import display, Audio
import soundfile as sf
import torch
pipeline = KPipeline(lang_code='a')
text = '''
[Kokoro](/kˈOkəɹO/) is an open-weight TTS model with 82 million parameters. Despite its lightweight architecture, it delivers comparable quality to larger models while being significantly faster and more cost-efficient. With Apache-licensed weights, [Kokoro](/kˈOkəɹO/) can be deployed anywhere from production environments to personal projects.
'''
generator = pipeline(text, voice='af_heart')
for i, (gs, ps, audio) in enumerate(generator):
print(i, gs, ps)
display(Audio(data=audio, rate=24000, autoplay=i==0))
sf.write(f'{i}.wav', audio, 24000)
```
Under the hood, `kokoro` uses [`misaki`](https://pypi.org/project/misaki/), a G2P library at https://github.com/hexgrad/misaki
### Model Facts
**Architecture:**
- StyleTTS 2: https://arxiv.org/abs/2306.07691
- ISTFTNet: https://arxiv.org/abs/2203.02395
- Decoder only: no diffusion, no encoder release
**Architected by:** Li et al @ https://github.com/yl4579/StyleTTS2
**Trained by**: `@rzvzn` on Discord
**Languages:** Multiple
**Model SHA256 Hash:** `496dba118d1a58f5f3db2efc88dbdc216e0483fc89fe6e47ee1f2c53f18ad1e4`
### Training Details
**Data:** Kokoro was trained exclusively on **permissive/non-copyrighted audio data** and IPA phoneme labels. Examples of permissive/non-copyrighted audio include:
- Public domain audio
- Audio licensed under Apache, MIT, etc
- Synthetic audio[1] generated by closed[2] TTS models from large providers
[1] https://copyright.gov/ai/ai_policy_guidance.pdf
[2] No synthetic audio from open TTS models or "custom voice clones"
**Total Dataset Size:** A few hundred hours of audio
**Total Training Cost:** About $1000 for 1000 hours of A100 80GB vRAM
### Creative Commons Attribution
The following CC BY audio was part of the dataset used to train Kokoro v1.0.
| Audio Data | Duration Used | License | Added to Training Set After |
| ---------- | ------------- | ------- | --------------------------- |
| [Koniwa](https://github.com/koniwa/koniwa) `tnc` | <1h | [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/deed.ja) | v0.19 / 22 Nov 2024 |
| [SIWIS](https://datashare.ed.ac.uk/handle/10283/2353) | <11h | [CC BY 4.0](https://datashare.ed.ac.uk/bitstream/handle/10283/2353/license_text) | v0.19 / 22 Nov 2024 |
### Acknowledgements
- 🛠️ [@yl4579](https://huggingface.co/yl4579) for architecting StyleTTS 2.
- 🏆 [@Pendrokar](https://huggingface.co/Pendrokar) for adding Kokoro as a contender in the TTS Spaces Arena.
- 📊 Thank you to everyone who contributed synthetic training data.
- ❤️ Special thanks to all compute sponsors.
- 👾 Discord server: https://discord.gg/QuGxSWBfQy
- 🪽 Kokoro is a Japanese word that translates to "heart" or "spirit". It is also the name of an [AI in the Terminator franchise](https://terminator.fandom.com/wiki/Kokoro).
Official voice information:
# Voices
- 🇺🇸 [American English](#american-english): 11F 9M
- 🇬🇧 [British English](#british-english): 4F 4M
- 🇯🇵 [Japanese](#japanese): 4F 1M
- 🇨🇳 [Mandarin Chinese](#mandarin-chinese): 4F 4M
- 🇪🇸 [Spanish](#spanish): 1F 2M
- 🇫🇷 [French](#french): 1F
- 🇮🇳 [Hindi](#hindi): 2F 2M
- 🇮🇹 [Italian](#italian): 1F 1M
- 🇧🇷 [Brazilian Portuguese](#brazilian-portuguese): 1F 2M
For each voice, the given grades are intended to be estimates of the **quality and quantity** of its associated training data, both of which impact overall inference quality.
Subjectively, voices will sound better or worse to different people.
Support for non-English languages may be absent or thin due to weak G2P and/or lack of training data. Some languages are only represented by a small handful or even just one voice (French).
Most voices perform best on a "goldilocks range" of 100-200 tokens out of ~500 possible. Voices may perform worse at the extremes:
- **Weakness** on short utterances, especially less than 10-20 tokens. Root cause could be lack of short-utterance training data and/or model architecture. One possible inference mitigation is to bundle shorter utterances together.
- **Rushing** on long utterances, especially over 400 tokens. You can chunk down to shorter utterances or adjust the `speed` parameter to mitigate this.
**Target Quality**
- How high quality is the reference voice? This grade may be impacted by audio quality, artifacts, compression, & sample rate.
- How well do the text labels match the audio? Text/audio misalignment (e.g. from hallucinations) will lower this grade.
**Training Duration**
- How much audio was seen during training? Smaller durations result in a lower overall grade.
- 10 hours <= **HH hours** < 100 hours
- 1 hour <= H hours < 10 hours
- 10 minutes <= MM minutes < 100 minutes
- 1 minute <= _M minutes_ 🤏 < 10 minutes
### American English
- `lang_code='a'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `en-us` fallback
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ |
| **af\_heart** | 🚺❤️ | | | **A** | `0ab5709b` |
| af_alloy | 🚺 | B | MM minutes | C | `6d877149` |
| af_aoede | 🚺 | B | H hours | C+ | `c03bd1a4` |
| af_bella | 🚺🔥 | **A** | **HH hours** | **A-** | `8cb64e02` |
| af_jessica | 🚺 | C | MM minutes | D | `cdfdccb8` |
| af_kore | 🚺 | B | H hours | C+ | `8bfbc512` |
| af_nicole | 🚺🎧 | B | **HH hours** | B- | `c5561808` |
| af_nova | 🚺 | B | MM minutes | C | `e0233676` |
| af_river | 🚺 | C | MM minutes | D | `e149459b` |
| af_sarah | 🚺 | B | H hours | C+ | `49bd364e` |
| af_sky | 🚺 | B | _M minutes_ 🤏 | C- | `c799548a` |
| am_adam | 🚹 | D | H hours | F+ | `ced7e284` |
| am_echo | 🚹 | C | MM minutes | D | `8bcfdc85` |
| am_eric | 🚹 | C | MM minutes | D | `ada66f0e` |
| am_fenrir | 🚹 | B | H hours | C+ | `98e507ec` |
| am_liam | 🚹 | C | MM minutes | D | `c8255075` |
| am_michael | 🚹 | B | H hours | C+ | `9a443b79` |
| am_onyx | 🚹 | C | MM minutes | D | `e8452be1` |
| am_puck | 🚹 | B | H hours | C+ | `dd1d8973` |
| am_santa | 🚹 | C | _M minutes_ 🤏 | D- | `7f2f7582` |
### British English
- `lang_code='b'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `en-gb` fallback
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ |
| bf_alice | 🚺 | C | MM minutes | D | `d292651b` |
| bf_emma | 🚺 | B | **HH hours** | B- | `d0a423de` |
| bf_isabella | 🚺 | B | MM minutes | C | `cdd4c370` |
| bf_lily | 🚺 | C | MM minutes | D | `6e09c2e4` |
| bm_daniel | 🚹 | C | MM minutes | D | `fc3fce4e` |
| bm_fable | 🚹 | B | MM minutes | C | `d44935f3` |
| bm_george | 🚹 | B | MM minutes | C | `f1bc8122` |
| bm_lewis | 🚹 | C | H hours | D+ | `b5204750` |
### Japanese
- `lang_code='j'` in [`misaki[ja]`](https://github.com/hexgrad/misaki)
- Total Japanese training data: H hours
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 | CC BY |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ | ----- |
| jf_alpha | 🚺 | B | H hours | C+ | `1bf4c9dc` | |
| jf_gongitsune | 🚺 | B | MM minutes | C | `1b171917` | [gongitsune](https://github.com/koniwa/koniwa/blob/master/source/tnc/tnc__gongitsune.txt) |
| jf_nezumi | 🚺 | B | _M minutes_ 🤏 | C- | `d83f007a` | [nezuminoyomeiri](https://github.com/koniwa/koniwa/blob/master/source/tnc/tnc__nezuminoyomeiri.txt) |
| jf_tebukuro | 🚺 | B | MM minutes | C | `0d691790` | [tebukurowokaini](https://github.com/koniwa/koniwa/blob/master/source/tnc/tnc__tebukurowokaini.txt) |
| jm_kumo | 🚹 | B | _M minutes_ 🤏 | C- | `98340afd` | [kumonoito](https://github.com/koniwa/koniwa/blob/master/source/tnc/tnc__kumonoito.txt) |
### Mandarin Chinese
- `lang_code='z'` in [`misaki[zh]`](https://github.com/hexgrad/misaki)
- Total Mandarin Chinese training data: H hours
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ |
| zf_xiaobei | 🚺 | C | MM minutes | D | `9b76be63` |
| zf_xiaoni | 🚺 | C | MM minutes | D | `95b49f16` |
| zf_xiaoxiao | 🚺 | C | MM minutes | D | `cfaf6f2d` |
| zf_xiaoyi | 🚺 | C | MM minutes | D | `b5235dba` |
| zm_yunjian | 🚹 | C | MM minutes | D | `76cbf8ba` |
| zm_yunxi | 🚹 | C | MM minutes | D | `dbe6e1ce` |
| zm_yunxia | 🚹 | C | MM minutes | D | `bb2b03b0` |
| zm_yunyang | 🚹 | C | MM minutes | D | `5238ac22` |
### Spanish
- `lang_code='e'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `es`
| Name | Traits | SHA256 |
| ---- | ------ | ------ |
| ef_dora | 🚺 | `d9d69b0f` |
| em_alex | 🚹 | `5eac53f7` |
| em_santa | 🚹 | `aa8620cb` |
### French
- `lang_code='f'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `fr-fr`
- Total French training data: <11 hours
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 | CC BY |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ | ----- |
| ff_siwis | 🚺 | B | <11 hours | B- | `8073bf2d` | [SIWIS](https://datashare.ed.ac.uk/handle/10283/2353) |
### Hindi
- `lang_code='h'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `hi`
- Total Hindi training data: H hours
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ |
| hf_alpha | 🚺 | B | MM minutes | C | `06906fe0` |
| hf_beta | 🚺 | B | MM minutes | C | `63c0a1a6` |
| hm_omega | 🚹 | B | MM minutes | C | `b55f02a8` |
| hm_psi | 🚹 | B | MM minutes | C | `2f0f055c` |
### Italian
- `lang_code='i'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `it`
- Total Italian training data: H hours
| Name | Traits | Target Quality | Training Duration | Overall Grade | SHA256 |
| ---- | ------ | -------------- | ----------------- | ------------- | ------ |
| if_sara | 🚺 | B | MM minutes | C | `6c0b253b` |
| im_nicola | 🚹 | B | MM minutes | C | `234ed066` |
### Brazilian Portuguese
- `lang_code='p'` in [`misaki[en]`](https://github.com/hexgrad/misaki)
- espeak-ng `pt-br`
| Name | Traits | SHA256 |
| ---- | ------ | ------ |
| pf_dora | 🚺 | `07e4ff98` |
| pm_alex | 🚹 | `cf0ba8c5` |
| pm_santa | 🚹 | `d4210316` |
kokoro licence / source notices:
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
en-core-web-sm licence / source notices:
Copyright 2021 ExplosionAI GmbH
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.
en-core-web-sm licence / source notices:
# OntoNotes 5
* Author: Ralph Weischedel, Martha Palmer, Mitchell Marcus, Eduard Hovy, Sameer Pradhan, Lance Ramshaw, Nianwen Xue, Ann Taylor, Jeff Kaufman, Michelle Franchini, Mohammed El-Bachouti, Robert Belvin, Ann Houston
* URL: https://catalog.ldc.upenn.edu/LDC2013T19
* License: commercial (licensed by Explosion)
```
```
# ClearNLP Constituent-to-Dependency Conversion
* Author: Emory University
* URL: https://github.com/clir/clearnlp-guidelines/blob/master/md/components/dependency_conversion.md
* License: Citation provided for reference, no code packaged with model
```
```
# WordNet 3.0
* Author: Princeton University
* URL: https://wordnet.princeton.edu/
* License: WordNet 3.0 License
```
WordNet Release 3.0
This software and database is being provided to you, the LICENSEE, by
Princeton University under the following license. By obtaining, using
and/or copying this software and database, you agree that you have
read, understood, and will comply with these terms and conditions.:
Permission to use, copy, modify and distribute this software and
database and its documentation for any purpose and without fee or
royalty is hereby granted, provided that you agree to comply with
the following copyright notice and statements, including the disclaimer,
and that the same appear on ALL copies of the software, database and
documentation, including modifications that you make for internal
use or for distribution.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
THIS SOFTWARE AND DATABASE IS PROVIDED "AS IS" AND PRINCETON
UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PRINCETON
UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES OF MERCHANT-
ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE
OF THE LICENSED SOFTWARE, DATABASE OR DOCUMENTATION WILL NOT
INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR
OTHER RIGHTS.
The name of Princeton University or Princeton may not be used in
advertising or publicity pertaining to distribution of the software
and/or database. Title to copyright in this software, database and
any associated documentation shall at all times remain with
Princeton University and LICENSEE agrees to preserve same.```