Terms of Use

1. General Terms

Subtile (the "Service") is a video editing and captioning tool operated by YUKARI LABS SRL, a company registered in Belgium under enterprise/VAT number BE1033402366, with its registered office at Cantersteen 47, 1000 Brussels, Belgium. By accessing or using the Service you acknowledge that you have read, understood and agree to be bound by these Terms and by our Privacy Policy. If you do not agree, you must not use the Service.

2. Eligibility and Age

You must be at least 18 years old to use the Service. If you use the Service on behalf of an organization, you represent that you are authorized to bind it to these Terms.

3. Your Account

You can sign in with Twitch, with Google, or with an email address and password. Connecting Twitch (at sign-in or later) authorizes the Service to access the Twitch API on your behalf for the purposes described in the Privacy Policy; you may revoke that access at any time from Twitch's Connections settings, and features that need Twitch stop working when you do. You are responsible for activity under your account and for keeping your credentials secure. Subtile is an independent tool and is not endorsed by, affiliated with, or operated by Twitch or Amazon.

Accounts moved from Subtile. Subtile AI is operated by YUKARI LABS SRL. If you had an account on the previous Subtile platform, your account and your projects, captions, subtitle presets and files have been moved into the Service, as described in section 2.7 of the Privacy Policy. From your first sign-in, your use of the Service is governed by these Terms, and you keep ownership of that content as set out in section 7. If you do not want to continue, you can close the account from Settings or ask us to delete it by emailing contact@subtile.ai.

4. Acceptable Use

When using the Service you agree not to:

• Violate any applicable law or regulation
• Infringe the intellectual-property or other rights of others
• Upload, process, store or distribute any content that you do not own or do not have the necessary rights, licenses and permissions to use, or that is illegal, infringing, defamatory, or otherwise unlawful
• Circumvent security measures, rate limits, or access controls
• Distribute malware or conduct malicious activity
• Use automated means or scraping to collect content from the Service, or use the Service to get around the rules or the technical limits of Twitch or of another platform
• Reverse engineer, decompile or disassemble the Service, or resell or redistribute the Service itself

5. Twitch Content and Third-Party Intellectual Property

Clips, videos-on-demand, broadcasts, names, logos and other materials originating on Twitch ("Twitch Content") are owned by Twitch and/or the respective streamers, creators and rights-holders. Where your account has access to them, Subtile provides tooling to discover clips and, for channels that have authorized Subtile through Twitch, to download, edit and export them, but grants you no ownership of or license to any Twitch Content. You are solely responsible for ensuring that your use of any clip (including downloading, editing, reposting or monetizing it) complies with the Twitch Terms of Service, the Twitch Developer Agreement, the rights of the relevant streamers and rights-holders, and all applicable copyright and other laws. You are responsible for obtaining any permissions you need. YUKARI LABS SRL is not responsible for how you use Twitch Content.

5.1 How Twitch Content is accessed

A Twitch clip can be downloaded or edited in Subtile only when Twitch allows it for that channel: the streamer has connected their channel to Subtile, or you are one of the channel's editors and have connected your Twitch account. Twitch asks for this permission the first time you download or edit a clip, not when you sign in. When the channel has not connected, the clip can be watched but not downloaded or edited. The VOD features work from a recording you upload.

5.2 Your rights in what you import

You may only import, download, edit or publish content through Subtile if you own it or have permission from everyone who holds rights in it, including the streamer, any people shown, and the owners of music or game footage where needed. Before your first download or import, we ask you to confirm that you created the content or have permission from its creator to edit and repost it. We do not check this for you and you are responsible for it. A streamer's permission covers the streamer's own contribution; it does not cover the rights of others in the same content.

5.3 Notice and takedown

If you believe content processed, stored or shown through Subtile infringes your rights, use the report form or write to contact@subtile.ai. Tell us who you are, what work or right is concerned, where the content is (a link, a channel or a clip ID), and confirm that the information is accurate and that you are the rights holder or act for them. We review each notice, remove or disable access to the content where appropriate, and may inform the user who added it. A user who thinks a removal was a mistake can reply with their explanation.

5.4 Streamer opt-out

Streamers can ask us to block their channel from the clip boards, the VOD features and link import. Use the report form or write to us in a way that shows you control the channel, and we will add it to our block list.

5.5 Repeated complaints

We may suspend the clip features for an account, or close an account, that receives repeated valid complaints, or that we reasonably believe is using Subtile mainly to copy or repost other people's content without permission.

6. Compliance with Twitch

Where you sign in with Twitch or use features that work with Twitch, your use of the Service must at all times comply with Twitch's Terms of Service, Community Guidelines and developer policies. We may suspend or limit your access to comply with Twitch's requirements, to respond to a request from Twitch or a rights-holder, or if your Twitch authorization is revoked or expires. Those features depend on the Twitch API, which Twitch may change, restrict or discontinue at any time; this may affect or interrupt features without notice.

Subtile can also connect to or import from other services, such as YouTube, TikTok and Instagram. Your use of those services stays subject to their own terms and policies, and you must follow them. We are not responsible for those services, and they may change or remove access at any time, which can change or remove features in Subtile.

Subtile is an independent product of YUKARI LABS SRL. It is not affiliated with, sponsored by or endorsed by Twitch Interactive, Amazon, Google, YouTube, TikTok or Meta. Their names and logos belong to their owners and are used only to identify compatible services.

7. Your Content

"Your Content" means the projects, edits, captions, settings, uploads and rendered outputs (and, where your account has that feature, the boards) you create or upload with the Service, including content imported from the previous Subtile platform. You retain ownership of Your Content, subject to the third-party rights in any Twitch Content it incorporates. You are solely responsible for Your Content, and you represent and warrant that:

• You own or have all rights, licenses and permissions necessary to upload, process and use it with the Service
• It does not infringe or violate any third-party rights
• It is not illegal, defamatory, obscene, or otherwise unlawful, and complies with these Terms and applicable law

You grant YUKARI LABS SRL a worldwide, non-exclusive, royalty-free licence to host, store, process, reproduce, adapt and display Your Content as necessary to provide, maintain and secure the Service you request. We may sublicense these rights to service providers acting on our behalf for those purposes. This licence also covers content imported from the previous Subtile platform so that you can continue using it.

7.1 Additional permissions on the Free plan

If you use the Service on the Free plan, you additionally grant YUKARI LABS SRL a worldwide, non-exclusive, royalty-free licence to use, reproduce, analyse and adapt Your Content for research and to develop and improve Subtile and other products and services developed or operated by YUKARI LABS SRL, including future products and services. This includes training, fine-tuning, testing and evaluating AI models and algorithms for those purposes, using your videos, audio, images, transcripts, captions, subtitle presets, projects, editing instructions, corrections and rendered outputs. Authorised staff and contractors may review and label samples for these purposes. Subject to mandatory data-protection and consumer law, maintaining this research and AI-improvement licence is a condition of continued editing and processing on the Free plan.

The additional Free-plan licence also allows us to reproduce, edit, publish, perform and display examples of Your Content in presentations, slideshows, product demonstrations, events and marketing for Subtile and other YUKARI LABS SRL products and services, including future products and services. Examples may appear on our websites, on social media, in app-store listings and in advertisements, and may be visible to the public. You retain ownership of Your Content, and these permitted uses do not entitle you to royalties or other payment. We will not present your content as a personal endorsement without your separate permission.

These additional permissions apply only to content you submit or create on the Free plan after you have been informed of and accepted this version of the Terms. They do not automatically cover earlier content, content migrated from the previous Subtile platform, or content submitted or created on a paid plan. We need your separate permission to use such content for the additional research, AI-improvement, presentation or marketing purposes described above. An account with no paid subscription is not, by itself, acceptance of these additional permissions.

7.2 Limits and your choices

The additional licence is limited to research, development, improvement, presentations and marketing for Subtile and other products and services developed or operated by YUKARI LABS SRL. We may sublicense these rights to service providers acting on our behalf for those purposes, but the licence does not permit us to sell Your Content or license it to third parties for their independent AI training or marketing. It excludes passwords, access tokens, payment details and the private migration archive. You must have the rights and permissions required for the intended use, including those of people whose image or voice appears in the content and owners of incorporated music or other material. A public link, or permission to edit a video, does not by itself authorise training, presentation or advertising uses.

All uses remain subject to our Privacy Policy and applicable law. This content licence is not consent to process personal data under the GDPR and does not waive anyone's privacy, image or other rights. Requests to exercise statutory rights are assessed separately from contractual licence revocation. We will not require payment to exercise those rights, and the Free-plan condition does not apply where mandatory law requires us to continue providing access. We will obtain separate consent where required and will not intentionally select sensitive personal information or content featuring children for these additional uses.

You may revoke the research and AI-improvement licence at any time by emailing contact@subtile.ai. Subject to mandatory law, if you revoke that licence for all or part of your eligible content, you cannot continue editing or processing on the Free plan: you must upgrade to an available paid plan or stop using the Free plan and close your account. You can export your projects before closing it. We will not automatically charge you or delete your account because you made a request. You may separately refuse or revoke presentation and marketing permission for all or specific content without losing access to the Free plan. Subject to the existing-materials exception below, we will stop new uses covered by your revocation and remove affected source content from active training datasets and presentation or marketing materials under our control within 30 days, or sooner where required by law.

Upgrading to a paid plan or closing your account does not by itself revoke licences already granted for eligible content submitted or created on the Free plan. Content submitted or created on a paid plan is excluded unless you separately agree. A separate revocation stops new uses, but, to the extent permitted by law, the licence continues for publications already released and presentations, slideshows, demonstrations, event materials or campaigns already prepared or contractually committed before we receive the revocation. We may continue using those specific materials for the originally planned publication, event or campaign until it is discontinued or completed; we may not use the revoked content for a new event, campaign or materially different purpose. This exception does not override a valid withdrawal of data-protection consent, an applicable objection or erasure right, or any obligation to remove unlawful content.

We may retain genuinely anonymous aggregate statistics and model improvements lawfully produced before the permission ended, only where they no longer identify you or any other person and do not allow your content or personal data to be recovered. Removing source samples does not necessarily reverse prior training; this does not limit our obligations under data-protection law. Copies independently shared by others and printed materials already distributed may be outside our control.

8. Communications and Marketing

YUKARI LABS SRL operates a portfolio of products for creators. By using the Service you agree that we may contact you about Subtile and about other YUKARI LABS products and features that may be relevant to you (for example, ManyLinks). We will always include a way to opt out of non-essential marketing communications, and you can opt out at any time via the unsubscribe link or by emailing contact@subtile.ai. We will still send essential Service and account notices.

9. Service Providers

The Service relies on third-party providers: Convex, Vercel, Cloudflare, Twitch, Resend, Deepgram, OpenRouter, Google, Anthropic, OpenAI, Apify, Remotion, PostHog, Sentry, Amazon Web Services, Modal. Each is described, with a link to its privacy policy, in section 7 of the Privacy Policy. By using the Service you acknowledge that your use is also subject to the applicable terms and privacy policies of these providers.

10. Intellectual Property

The Service, including its software, design, and underlying architecture (excluding Twitch Content and Your Content), is owned by YUKARI LABS SRL and protected by intellectual-property laws. You may not copy, modify, distribute, sell, lease, or reverse engineer, decompile or disassemble any part of the Service, except to the extent such restriction is prohibited by law.

11. Privacy

Our collection and use of personal data is governed by our Privacy Policy, which is incorporated into these Terms by reference.

12. Beta and Phased Features

Parts of the Service, including the editing and rendering pipeline, are under active development and are provided on an "as is", evolving basis. Features may change, be limited, or be removed, and may behave unexpectedly. We may impose usage or rate limits to keep the Service available for everyone.

13. Termination and Suspension

We may suspend or terminate your access at our discretion, without notice, for conduct that violates these Terms, harms other users or the Service, or to comply with Twitch or the law. You may stop using the Service and delete your account at any time. Provisions that by their nature should survive termination (including intellectual property, the content license, disclaimers, limitation of liability, indemnification and governing law) survive.

14. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the Service will be uninterrupted, secure or error-free, or that downloads, transcription, reframing or rendering will succeed for any given video, including where Twitch changes or restricts its platform or APIs.

15. Limitation of Liability

To the maximum extent permitted by law, YUKARI LABS SRL shall not be liable for any indirect, incidental, special, consequential or punitive damages, or any loss of profits, revenue, data, goodwill or other intangible losses, resulting from:

• Your use of or inability to use the Service
• Any unauthorized access to or use of our servers or your data
• Any interruption or cessation of the Service
• Any bugs, viruses or harmful code transmitted through the Service
• Your use of any Twitch Content obtained through the Service

16. Indemnification

You agree to indemnify and hold harmless YUKARI LABS SRL, its officers, directors, employees and agents from any claims, damages, losses, liabilities and expenses (including legal fees) arising out of your use of the Service, Your Content, your use of any Twitch Content, or your violation of these Terms or applicable law.

17. Changes to These Terms

We may modify these Terms and will post the updated version here with a revised Last Updated date. We will give advance notice of material changes through the Service or by email. Expanding AI-training or marketing permissions does not apply retroactively to existing content without your separate agreement, and we will seek separate consent whenever required by law. Otherwise, your continued use after notified changes take effect constitutes acceptance of the updated Terms.

18. Governing Law

These Terms are governed by the laws of Belgium, without regard to conflict-of-law rules. Any disputes arising under or in connection with these Terms are subject to the exclusive jurisdiction of the courts of Brussels, Belgium.

19. Severability

If any provision of these Terms is held invalid or unenforceable, that provision will be limited or struck and the remaining provisions will remain in full force and effect.

20. Contact

For questions about these Terms, contact:

YUKARI LABS SRL
Cantersteen 47, 1000 Brussels, Belgium
Enterprise/VAT number: BE1033402366
Email: contact@subtile.ai