Terms of Use
Substrate is an experimental research prototype. By accessing or using it, you agree to these Terms of Use. If you do not agree, do not use Substrate.
These terms are written in plain language. Where a clause is in capitals, it is intended to be legally prominent.
1.Nature of the software
Substrate is provided for research, evaluation, and demonstration purposes only. It is experimental software that extracts structured representations of human and AI dialogue using large language models. Its outputs are approximate, may be incomplete or incorrect, and are not intended to be relied upon for any decision, professional, commercial, legal, medical, financial, or otherwise. Substrate is not a finished product and may change, break, or be withdrawn at any time without notice.
2.No warranty
Substrate is provided "as is" and "as available", without warranty of any kind, express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.
The author and any contributors make no representation that Substrate will be uninterrupted, error-free, secure, or that its outputs will be accurate or reliable. You use it entirely at your own risk.
3.Limitation of liability
To the maximum extent permitted by applicable law, in no event will the author or any contributor be liable for any direct, indirect, incidental, special, consequential, or exemplary damages, or for any loss of profits, data, goodwill, API credits, or other intangible losses, arising out of or in connection with your use of, or inability to use, Substrate, whether based on warranty, contract, tort, or any other legal theory, and whether or not the author was advised of the possibility of such damage.
Some jurisdictions do not allow the exclusion of certain warranties or the limitation of liability for certain damages. To the extent such law applies to you, some of the above exclusions may not apply, and the author's liability is limited to the smallest amount permitted by that law.
4.Your API keys and costs
Live extraction and chat require you to supply your own API key for a third-party AI provider (such as Anthropic or OpenAI). You are solely responsible for: (a) obtaining and securing your own key; (b) all usage, charges, and rate limits incurred against that key; and (c) complying with the provider's own terms. Your key is stored only in your browser's local storage and is transmitted only to Substrate's own API endpoints to make requests on your behalf. The author does not knowingly store your key on any server and accepts no responsibility for charges you incur.
5.Third-party AI providers
When you use a live feature, your conversation content is sent to the third-party AI provider whose key you supplied. That provider's handling of your data is governed by its own terms and privacy policy, not these terms. The author has no control over, and accepts no responsibility for, how those providers process, retain, or use the data you submit through them.
6.Your content and conduct
You are responsible for any content you submit to Substrate, whether by pasting a conversation, chatting, or otherwise. You agree not to submit content that: (a) you do not have the right to submit; (b) contains sensitive personal data, credentials, or confidential information you are not authorised to disclose; or (c) is unlawful, infringing, or harmful. You agree not to use Substrate to violate any law or any third party's rights. The author may restrict or terminate access for any reason.
7.Not professional advice
Nothing produced by Substrate, including extracted graphs, divergence labels, severities, confidence scores, or any text, constitutes professional advice of any kind. Substrate's analysis is automated, probabilistic, and may be wrong. Do not rely on it as a substitute for professional judgement.
8.Data and privacy
Substrate has no user accounts and no server-side database. The three curated examples replay from static files and require no key. Conversations you submit for live processing are handled transiently in memory to produce a response and are not persisted on the author's servers. Your current session and your API key are stored only in your own browser's local storage so that the app works across refreshes; you can clear them at any time.
For a fuller description of how the pipeline handles data, see the algorithm walkthrough. Note the exception in clause 5: content sent to a third-party AI provider is subject to that provider's policies.
9.Intellectual property
Substrate is a research prototype. The source code is published for inspection and reproducibility. Trademarks, model names, and datasets referenced (such as those of Anthropic, OpenAI, or AllenAI's WildChat) belong to their respective owners and are used for identification and research only.
10.Research use and reproducibility
Any empirical results, figures, or findings presented within Substrate (including on the findings page) are reported in good faith for research transparency. They are derived from automated processing and are subject to the limitations described on those pages. They are not warranted to be free of error and should be independently verified before being relied upon or cited.
11.Changes to these terms
The author may update these terms at any time by posting a revised version with a new effective date. Your continued use of Substrate after a change constitutes acceptance of the revised terms.
12.Governing law
These terms are governed by and construed in accordance with the laws of Scotland, United Kingdom, without regard to conflict-of-law principles. You agree to the exclusive jurisdiction of the courts of Scotland for any dispute arising out of or relating to these terms or Substrate, to the extent permitted by applicable law.
13.Severability
If any provision of these terms is held to be invalid or unenforceable, that provision will be limited or removed to the minimum extent necessary, and the remaining provisions will remain in full force and effect.
Substrate is a non-commercial research prototype provided free of charge with no warranty. These terms exist to make that nature explicit and to allocate risk to the user accordingly.
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