Turn this comparison into procurement-ready diligence
Free shows today's risk. A Stack Audit gives you a citable, verbatim-sourced PDF across your whole AI stack — and flags the moment a vendor's terms change.
Free shows today's risk. A Stack Audit gives you a citable, verbatim-sourced PDF across your whole AI stack — and flags the moment a vendor's terms change.
Your privacy
We use first-party analytics and Google Analytics to understand traffic and improve the site (IP-derived location, device info, analytics cookies). We never sell your personal information and run no advertising trackers. You can opt out below. See our Privacy Policy and Cookie Policy.
293 verified findings across the displayed surfaces.
191 verified findings across the displayed surfaces.
Empty Comparison Slot
Cohere API carries highly permissive license terms; Quizlet Q-Chat carries highly permissive license terms.FOR ENTERPRISE: COHERE API NOT RECOMMENDED · QUIZLET Q-CHAT NOT RECOMMENDED
| RISK SURFACE | COHERE API | QUIZLET Q-CHAT |
|---|---|---|
| PPrompt Ownership | ||
| OOutput Ownership | ||
| TModel Training | ||
| CCommercial Use | ||
| DData Privacy | ||
| $Tier Differences |
“You agree that any suggestion or idea provided by you (such suggestions or ideas, “ Feedback ”) will not be treated as confidential, and nothing in these Terms of Use will restrict our right to use, profit from, disclose, publish or otherwise exploit any Feedback, without compens…”
Feedback submitted by users — which could be interpreted broadly to include prompts or suggestions provided to the platform — is subject to a perpetual, irrevocable, royalty-free worldwide license with no compensation to the user.
“By submitting Content or any other material to Quizlet for inclusion on the Service or for any other purpose, for example posting a flashcard set, answering a survey or sending Quizlet an email, you grant Quizlet a world-wide, perpetual, irrevocable, royalty-free license (with ri…”
Users grant a perpetual, irrevocable, royalty-free, sublicensable license over all submitted content — including inputs like flashcard sets and emails — with no compensation and covering all existing and future media. This is an extremely broad rights grab.
“ publish, market, advertise or in any way distribute the Content;”
“14. **Trademarks.** Quizlet, Quizlet.com, Quizlet Ads, the Quizlet mark and logo, and all other trademarks, service marks, graphics and logos used in connection with Quizlet, or the Service are trademarks or registered trademarks of Quizlet or Quizlet's licensors. Other trademark…”
“For Trial Users and Researchers (i.e. users interacting with Cohere Products on research-specific platforms like Hugging Face, Cohere Labs grantee users, or users demoing Cohere Products under a free trial account), we collect content you submit to the Cohere Products, and output…”
Trial Users and Researchers have their inputs and outputs used for model training and R&D by default, with no explicit opt-out described in this section.
“you grant Quizlet a world-wide, perpetual, irrevocable, royalty-free license (with right to sublicense through multiple tiers) to use, copy, reproduce, process, adapt, modify, publish, transmit, publicly display, publicly perform and distribute such Content or material in any and…”
The broad license to 'process' and 'adapt' submitted content, combined with the 'additional uses' catch-all and sublicensing rights to partners, is broad enough to encompass AI/ML training use. No explicit opt-out is provided.
“ attempt to gain unauthorized access to the Cohere Solution, or bypass any measures we may use to prevent or restrict access to the Cohere Solution, attempt to circumvent the intended features, functionality or limitations of the Cohere Solution, or otherwise use, copy, distribut…”
“ 4. **Restrictions**: You may not use Premium Content for any commercial purpose. This means you can’t sell it, use it for advertising or marketing purposes, or use it in any other way in connection with a business or profit making activity. You may not post or otherwise make…”
“Safeguards, Retention and Privacy Governance”
The document references a 'Safeguards, Retention and Privacy Governance' section but does not provide its content in the supplied text. Retention periods and deletion rights cannot be assessed from this excerpt.
“We retain records of support tickets and other communications between Quizlet and our users, for example support emails, survey responses, feedback submissions, or comments on our blogs or other posts, indefinitely in order to better manage our support processes, maintain accurat…”
Support communications are retained indefinitely AND Quizlet reserves the right to publish them publicly; users submitting support requests may not be aware their communications could be published.
“Section 2.3 (Research and Model Improvement): Analyzing usage patterns and using Trial or Research User Inputs/Outputs to improve the performance and safety of our AI models.”
Model training use of inputs/outputs is explicitly scoped to 'Trial or Research Users', implying paid or enterprise users may not have their data used for training. However, this distinction is not clearly defined elsewhere in the extracted text, creating ambiguity about which tier a given user falls into.
“01. **Eligibility.** Use of the Service is void where prohibited. The Service is intended for users over the age of 13, but is open to all ages. For children age 13 or younger (or other age of consent where required by local law), Quizlet offers a restricted feature set and websi…”