Terms of Service

These CourseHouse Terms of Service govern the CourseHouse websites and services: free open textbooks, the Visual Course Builder, hosted homework and quizzes, course files and LMS delivery, the Personal Science Notebook, and course development we perform for instructors and institutions (together, the "Services").

CourseHouse is a service operated by MolLogic LLC ("CourseHouse", "we"). Some scientific authoring and AI capabilities use ChemIllusion technology, which MolLogic LLC also operates; those capabilities are provided under these terms when used inside CourseHouse.

"Instructor" means anyone who builds, adopts or teaches with a course. "Student" means anyone enrolled in a course or using hosted homework. "Institution" means a school, department or district that purchases or guarantees on students' behalf.

CourseHouse open textbooks are free to read online and free to download as PDF and EPUB, without an account. Each is released under the open licence stated on its title and provenance pages; you may use, copy and adapt it under that licence, with attribution.

Free does not mean unowned. Third-party material inside a book keeps its own licence, recorded in Rights & Provenance. Trademarks, hosted homework and the CourseHouse software are not part of the open licence.

Hosted homework is a service, not a file. Item banks, autograding, feedback and analytics are delivered through CourseHouse or an LMS launch and may not be exported, scraped, redistributed or used to build another question bank. Previews and free samples are for evaluation.

Writing homework and quizzes for an adopted course is included at no charge; access is what is paid for. We may correct, replace or retire items to keep the set accurate.

Student access is sold per student, per term (semester, quarter or short course at the same price) in the package the course uses. Prices are shown before purchase and payments are processed by Stripe. Access lasts for the term of the course plus a grace period for grade disputes.

Institutions may buy packages by purchase order, minimum commitment or prepaid license pool. A commitment is the institution's, never the individual instructor's, and expires after the period stated in the agreement (about 24 months unless agreed otherwise).

Refunds: a student who purchases access and then drops within the institution's add/drop period, or within 14 days of purchase if there is none, receives a full refund on request. Institutional purchases are refunded according to their agreement.

Where a course needs text or slide decks that do not yet exist, CourseHouse may quote development at cost. A quote covers defined deliverables, accessibility and technical review, one structured revision on acceptance, and delivery. It is not a promise of ongoing maintenance; further work is quoted separately.

Each guaranteed student earns a fixed adoption credit against development, regardless of package. Credits reduce the development price to no less than zero, are never paid out, are recorded in a credit ledger, and expire with the commitment they came from. No payments are made to the instructor who selects a course.

Unless the quote says otherwise: new text enters the open catalog under an open licence; the instructor receives an editable copy of any deck and CourseHouse retains nonexclusive rights; homework and quizzes remain hosted. Sponsors fund priority, not ownership; exclusive work is not subsidised.

You keep ownership of syllabi, notes, manuscripts and other materials you submit ("Instructor Materials") and of the course you assemble. You grant CourseHouse a licence to host, process and display them to run your course, generate its files and provide support. We publish Instructor Materials to the open catalog only when you ask us to.

You represent that you have the rights to submit Instructor Materials. Where you include third-party material, you are responsible for its licence; the builder shows rights status to help, and its output is information, not legal advice.

The course assistant and other AI features propose changes; you approve them. AI-drafted text, questions and feedback should be reviewed before students see them. Student-facing AI is optional per course, and a course can run entirely without it. Our AI Principles describe how we use it; the shared "AI features, human review, and third-party models" section below sets the legal terms.

Institutions that connect an LMS authorise CourseHouse to receive launch data, deliver assignments and return grades for the launched assignment. The institution remains responsible for its LMS configuration and for authorising the users it launches. Our Privacy & Student Data page describes what a launch sends.

Students agree to do their own work, to keep their account to themselves, and not to copy, share or publish hosted questions or answer keys. Attempt records and scores are education records; the instructor and institution control how they are used for the official grade. AI feedback, where enabled, is not the official grade.

Students under 13 use CourseHouse only through a school that has consented on their behalf, as described in our children's privacy notice.

Notebook entries belong to the student. The notebook is free to students while they are enrolled through a school, stays readable after the course ends, and can be exported. Instructors may set carry-over preferences for a course but cannot read private entries. If the notebook service is ever discontinued we will give at least 90 days' notice and an export.

Open textbook content may be copied and remixed under its licence. Course structures you build are yours to copy. Hosted homework, quizzes and the CourseHouse software are not remixable and may not be copied out of the service. Where a remix draws on third-party material, the licences recorded in Rights & Provenance travel with it.

CourseHouse records the exact source snapshot, licence and evidence for third-party material it uses, and labels material whose rights are unresolved. Those records are our research, not legal advice or a clearance. If you believe material infringes your rights, contact us with the URL and your claim; we will investigate and remove or correct material where warranted.

• Do not scrape, export or redistribute hosted homework, quizzes or answer keys.
• Do not impersonate another student or instructor, or share accounts.
• Do not upload material you do not have the right to use, or content that is unlawful or harassing.
• Do not use the Services to build a competing question bank or to train models on hosted content.
• Do not attempt to bypass access controls, rate limits or grading integrity measures.

As between you and ChemIllusion, you retain ownership of Customer Content. Outputs may incorporate or reflect Customer Content and third-party model behavior; you are responsible for determining whether Outputs are suitable for your intended use.

ChemIllusion may process Customer Content to provide the Services, generate Outputs, enforce policies, comply with law, and as described in this Agreement and our Privacy Policy.

Inputs and Uploaded Files

You represent that you have the rights needed to submit Inputs and Uploaded Files and that doing so does not violate applicable law or third-party rights. Do not upload regulated health information, export-controlled technical data, or other categories you are not authorized to share with cloud services unless you have appropriate agreements in place.

Outputs

Subject to this Agreement, ChemIllusion grants you a license to use Outputs for your internal or permitted external purposes in accordance with your plan and applicable law. Some Outputs may be subject to usage rules of underlying AI providers; those rules are in addition to this Agreement.

Shared Content

You control whether Customer Content becomes Shared Content. Shared Content may be copied or stored by recipients outside ChemIllusion; you are responsible for confidentiality and intellectual property implications of sharing.

Where you or your Organization enable gallery, community, or similar features, you direct ChemIllusion to display the selected Outputs or Customer Content permitted by those settings.

The Services include AI-assisted features across multiple surfaces (for example chat, language tools, scans, graphical abstract support, mechanism or report-oriented workflows, and video). Outputs may be incorrect, incomplete, or unsuitable for your purpose. You must review Outputs for scientific accuracy, safety, regulatory compliance, and fitness for any commercial or academic use.

You remain solely responsible for scientific, legal, regulatory, and commercial decisions you make based on Outputs or on the Services. ChemIllusion does not provide professional advice; Outputs are not a substitute for independent expert review where required.

Models, providers, feature availability, quotas, and pricing may change over time. Some features may route requests to third-party AI providers; their processing is described at a high level in our Privacy Policy and may be subject to provider terms.

Certain image-related Outputs may be produced using providers (such as Bria) that advertise copyright-oriented safeguards for generated imagery. ChemIllusion does not warrant that Outputs from other providers or models are free from third-party rights claims, and you remain responsible for clearing rights and for how you use Outputs.

Beta, preview, and experimental features

Features labeled beta, preview, experimental, or similar may change, be limited, or be discontinued with or without notice. They may have reduced availability, support, or security commitments and may be excluded from uptime or performance commitments unless expressly stated otherwise.

ChemIllusion will treat non-public Customer Content as confidential information subject to this Agreement and the Privacy Policy, except for content you intentionally make public or share through Shared Content features, or where disclosure is required by law.

ChemIllusion implements reasonable administrative, technical, and organizational safeguards designed to protect Customer Content. Detailed practices, subprocessors, and retention are described in the Privacy Policy and may be supplemented in security documentation or an enterprise agreement; those materials are not incorporated into this Agreement by reference unless expressly agreed.

ChemIllusion retains all rights in the Services, software, models (excluding your Customer Content), branding, and documentation. Open- source components may be used subject to their respective licenses.

You retain ownership of Customer Content. You grant ChemIllusion a limited, worldwide, non-exclusive license to host, copy, process, transmit, display, and otherwise use Customer Content only as necessary to provide, maintain, secure, and improve the Services; enforce this Agreement; and comply with law, subject to more specific commitments in the Privacy Policy or a separate written agreement.

If you provide feedback or suggestions, you grant ChemIllusion a perpetual, irrevocable, royalty-free license to use them without obligation to you, except where prohibited by law.

You may delete your account or cancel subscriptions as described in the product interface or your Order Form. ChemIllusion may suspend or terminate access for breach, risk to the Services or third parties, nonpayment, or if required by law.

After termination, ChemIllusion may delete or retain data as described in the Privacy Policy or your enterprise agreement. Features that depend on Shared Content may remain accessible to link holders until you revoke links or we delete underlying data.

Disclaimers. Except as expressly stated in this Agreement, the Services are provided "as is" and "as available." To the maximum extent permitted by law, ChemIllusion disclaims all warranties, whether express, implied, or statutory, including merchantability, fitness for a particular purpose, title, and non-infringement.

Limitation of liability. To the maximum extent permitted by law, ChemIllusion and its suppliers will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for loss of profits, data, or goodwill. ChemIllusion's aggregate liability for claims arising out of or relating to the Services will not exceed the greater of (a) the amounts you paid to ChemIllusion for the Services in the twelve (12) months before the claim or (b) one hundred U.S. dollars (USD $100), except where liability cannot be limited by law.

Order of precedence. If you have entered into a separate written agreement with ChemIllusion (such as an Order Form, DPA, or institution agreement), its terms govern to the extent they conflict with this online Agreement on the subjects they cover.

Changes. ChemIllusion may update this Agreement by posting a revised version and updating the "Last updated" date. Material changes may require additional notice where required by law. Continued use after the effective date constitutes acceptance unless you stop using the Services and, where applicable, cancel paid plans.

User-supplied API keys. Where the Services allow user-supplied keys (for example OpenRouter), ChemIllusion still enforces plan limits, safety policies, and billing rules applicable to your account; your use of third-party keys remains subject to those providers' terms.