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SIDE-BY-SIDE · 2 OF 3
Two platforms.
Same questions.
Descript
IMAGE / VIDEO / AUDIO GENERATION
PROMPT
Users own their inputs and generated outputs. "Both Input and Output are considered User Content under these Terms, and as between you and Descript, you own all right, title, and interest in and to any Input and Output, to the extent protectable under applicable law."
OUTPUT
Users own their generated outputs but Descript notes that "the copyright status of the generated Output may not be clear and that the use of such Generative Tools may affect your ability to obtain or enforce any intellectual property rights."
TRAINING
Descript uses content to train models by default unless the user opts out. "Descript may access and use your Input and Output in order to create and operate Descript...including by Descript to train, improve, and develop its models and technologies (unless you have opted out of such use)."
COMMERCIAL
Commercial use of user-generated outputs is permitted. Specific commercial licensing applies to Storyblocks stock material.
301 verified findings across the displayed surfaces.
Spellbook
ENTERPRISE SEARCH / PRODUCTIVITY
PROMPT
Law firm customers own all contract documents and legal inputs. Spellbook (Rally Legal) processes documents for AI contract review and drafting.
OUTPUT
Customers own all AI-generated contract language, suggestions, and redlines. Spellbook does not assert IP over outputs.
TRAINING
Unknown — cached spellbook-ai_tos.txt contains policy text in a single HTML line (line 362) exceeding the 25,000-token Read tool limit. Core IP and data use sections (1–12) are inaccessible. Sections 13.7–13.13 (dispute resolution, governing law: New York) were readable. Privacy file has same structure issue.
COMMERCIAL
Commercial use is fully permitted for legal practice and enterprise contract management.
177 verified findings across the displayed surfaces.
Empty Comparison Slot
AIRIN SUMMARY
Descript carries highly permissive license terms; Spellbook carries highly permissive license terms.FOR ENTERPRISE: DESCRIPT NOT RECOMMENDED · SPELLBOOK NOT RECOMMENDED
↳ Compliance surfaces · side by side
⚡ INTERACTIVE RISK COMPARISON HEATMAP
| RISK SURFACE | DESCRIPT | SPELLBOOK |
|---|---|---|
| PPrompt Ownership | ||
| OOutput Ownership | ||
| TModel Training | ||
| CCommercial Use | ||
| DData Privacy | ||
| $Tier Differences |
* Click any cell in the heatmap matrix to scroll directly to its verbatim policy citations below.
📂 Intellectual Property & Model Training
P
SURFACE 01
Prompt Ownership
Descript
HIGH⚠ CAUTIONHIGH
Users own their inputs and generated outputs. "Both Input and Output are considered User Content under these Terms, and as between you and Descript, you own all right, title, and interest in and to any Input and Output, to the extent protectable under applicable law."
“We claim no ownership rights in your User Content. You hereby grant to us a perpetual, irrevocable, nonexclusive, royalty-free, sublicensable, fully paid, worldwide license to create derivative works from, access, reproduce, distribute, process, publish, display, perform, adapt,…”
Despite claiming no ownership, Descript takes an extremely broad, perpetual, irrevocable, sublicensable license over all user content including name and likeness, across all current and future media channels, with no compensation.
Spellbook
MED⚠ CAUTIONHIGH
Law firm customers own all contract documents and legal inputs. Spellbook (Rally Legal) processes documents for AI contract review and drafting.
“ (b) This Agreement does not grant Customer any intellectual property license or rights in or to the Spellbook AI Platform or any of its components, except to the limited extent that such rights are necessary for Customer's use of the Spellbook AI Platform as specifically au…”
O
SURFACE 02
Output Ownership
Descript
HIGH⚠ CAUTIONHIGH
Users own their generated outputs but Descript notes that "the copyright status of the generated Output may not be clear and that the use of such Generative Tools may affect your ability to obtain or enforce any intellectual property rights."
“We claim no ownership rights in your User Content. You hereby grant to us a perpetual, irrevocable, nonexclusive, royalty-free, sublicensable, fully paid, worldwide license to create derivative works from, access, reproduce, distribute, process, publish, display, perform, adapt,…”
Descript disclaims ownership of user content but takes back a sweeping perpetual, irrevocable license to outputs/edited content. The scope of 'improve the Descript Service' is broad and could encompass model training.
Spellbook
MEDHIGH
Customers own all AI-generated contract language, suggestions, and redlines. Spellbook does not assert IP over outputs.
“ 6.2. Feedback. ”
T
SURFACE 03
Model Training
Descript
HIGH⚠ CAUTIONHIGH
Descript uses content to train models by default unless the user opts out. "Descript may access and use your Input and Output in order to create and operate Descript...including by Descript to train, improve, and develop its models and technologies (unless you have opted out of such use)."
“You hereby grant to us a perpetual, irrevocable, nonexclusive, royalty-free, sublicensable, fully paid, worldwide license to create derivative works from, access, reproduce, distribute, process, publish, display, perform, adapt, modify, analyze, and otherwise use the User Content…”
The license to 'analyze' and 'improve the Descript Service' could encompass AI model training on user content. There is no explicit opt-out mechanism referenced in the visible text.
Spellbook
MED⚠ CAUTIONHIGH
Unknown — cached spellbook-ai_tos.txt contains policy text in a single HTML line (line 362) exceeding the 25,000-token Read tool limit. Core IP and data use sections (1–12) are inaccessible. Sections 13.7–13.13 (dispute resolution, governing law: New York) were readable. Privacy file has same structure issue.
“ (iv) No Third Party LLM Model Training. Customer Data transmitted to Third Party LLMs via the Spellbook AI Platform will not be used to train, improve, or develop the AI models of those Third Party LLMs. Accordingly, Spellbook will ensure that all Third Party LLMs are prohibited…”
C
SURFACE 04
Commercial Use
Descript
HIGH⚠ CAUTIONHIGH
Commercial use of user-generated outputs is permitted. Specific commercial licensing applies to Storyblocks stock material.
“Additional content libraries (the “Additional Libraries”) are not subject to this license, may not be available for commercial use without a license, and may require that you obtain model clearance.”
Additional Libraries outside Storyblocks may require separate commercial licenses and model clearances, creating potential legal exposure for users who assume all platform content is commercially usable.
Spellbook
MED⚠ CAUTIONHIGH
Commercial use is fully permitted for legal practice and enterprise contract management.
“ (i) reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code or underlying algorithms of the Spellbook AI Platform;”
📂 Data Privacy & Governance
D
SURFACE 05
Data Privacy
Descript
HIGH⚠ CAUTIONHIGH
—
“Personalize and improve the Descript Service and for research and development purposes including training our artificial intelligence models;”
User data (including uploaded content) may be used to train AI models. An opt-out exists for Projects specifically, but this broad statement covers other collected information without a clear opt-out.
Spellbook
MED⚠ CAUTIONHIGH
—
“ (a) Spellbook collects and uses categories of Personal Data from the Customer and its Users that are required to administer Customer's Spellbook account, including payment records and credit cards. Otherwise, Spellbook only collects and uses Personal Data as necessary to pr…”
$
SURFACE 06
Tier Differences
Descript
MED⚠ CAUTIONHIGH
—
“ Scope of License. The license granted to you is limited to a non-transferable license to use the Mac App on any iPhone, iPod touch or iPad that you own or control as permitted by the Usage Rules set forth in the Apple App Store Terms of Service.”
Spellbook
MED⚠ CAUTIONHIGH
—
“ (b) Spellbook reserves the right to discontinue or modify its provision of any Beta Features to the Customer at any time, with or without notice;”