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Every plan comes with a seven-day free trial, and the first month carries a seven-day money-back guarantee.
Learn moreConceptSeek
Trace any concept through your videos, podcasts and PDFs.
Beginner
What is ConceptSeek?
ConceptSeek is an AI search tool. ConceptSeek indexes videos, podcasts, PDFs and notes so you can search by idea, jump to the exact timestamp, and map where sources agree or contradict.
ConceptSeek is a research tool built around one idea: that you should be able to search the material you have already collected by concept rather than by exact wording. It accepts YouTube videos, playlists and channels, podcasts, PDFs, text documents and direct text notes, then indexes them so that a query returns the precise passage or timestamp where an idea appears. This is aimed squarely at people working through long-form material: researchers, students, analysts, journalists, and anyone building a personal knowledge base out of lectures and interviews. In practice the tool is organized around libraries. Each library holds a set of trusted sources, and a query can run across one library or several at once while keeping source-level context intact. A concept search returns matching moments with the transcript and video synchronized, so you jump straight to 46:04 in a lecture instead of scrubbing through it. Threads takes the same material and builds a relational map, tagging connections between sources as agreeing, contradicting, complementing, or operating in a different context. Searches can be saved and revisited, which suits work that spans weeks rather than a single sitting. The positioning is deliberately narrow. ConceptSeek describes itself as an instrument for inspecting research rather than summarizing it, and says it mixes deterministic and AI systems to find, compare and rank moments while keeping every passage visible and directly accessible. That puts it closer to a literature-mapping or evidence-tracing utility than to a chat assistant that writes you an answer. The natural comparison is with transcript search built into podcast apps or note tools, which typically handles one source at a time and leans on literal keywords. The limits follow from that focus. Input is restricted to the formats listed above, so web articles and paywalled databases are not part of the stated scope. Usage is metered in credits, and the cheapest tier caps cross-library search at two libraries, which constrains the compare-across-sources workflow that is the product's main draw.
How do you use ConceptSeek?
1Create an account and pick a plan
Sign up from the homepage and choose a tier; the annual prices shown are 7.5, 15.8 and 32.5 dollars per month, and every plan starts with a seven-day trial.2Build your first library
Create a library and give it a name that reflects the material, for example a lecturer or a topic. Each library holds its own set of sources you trust.3Add sources to the library
Bring in YouTube videos, playlists or channels, podcasts, PDFs, text documents or typed notes. Starter allows 20 sources per library and Pro allows 80.4Run a concept search
Type an idea, claim, theme or phrase rather than a literal keyword. Matching moments appear with their timestamps so you can open the exact passage.5Inspect connections with Threads
Open Threads to see the relational map for a claim, with sources tagged as agreeing, contradicting, complementing or different context, then check each passage yourself.6Save the search and widen the scope
Save a query you will return to, and select additional libraries to run it across. Cross-library search is limited to two libraries on Starter and unlimited on Pro and Max.
Pros and cons
Pros
- Concept search finds passages even when you cannot recall the exact phrase or keywordAI
- Jump to moment opens the exact timestamp with matching transcript and video in syncAI
- Threads maps agreement, contradiction and complementary context across sourcesAI
- Libraries keep curated source sets reusable and searchable over timeAI
- Saved searches let long research projects pick up where they left offAI
Cons
- Credits are consumed per search, so heavy comparison work can outpace the monthly allowanceAI
- Cross-library search is capped at two libraries on the Starter planAI
- Input is limited to YouTube, podcasts, PDFs and text notes; general web pages are not in the stated scopeAI
- No public documentation, help centre or support page is described on the homepageAI
- Threads output still needs human judgment, which the tool acknowledges by leaving the thinking to youAI
How much does ConceptSeek cost?
Pricing
Three annual tiers: Starter at 7.5 dollars per month with 5 libraries, 20 sources each, 1,000 credits and cross-library search over 2 libraries; Pro at 15.8 dollars with 25 libraries, 80 sources, 3,000 credits and unlimited cross-library search; Max at 32.5 dollars with unlimited libraries, 500 sources, 10,000 credits and priority processing. Annual billing includes two months free.
Learn moreFeatures
Concept search returns precise passages by idea rather than keyword. Jump to moment opens the exact timestamp with transcript and video synced. Threads maps where sources agree, contradict, complement or differ in context. Libraries group trusted material for reuse, cross-library search runs one query over several of them, and searches can be saved for later.
Frequently asked questions about ConceptSeek
How much does ConceptSeek cost?
Three annual tiers: Starter at 7.5 dollars per month with 5 libraries, 20 sources each, 1,000 credits and cross-library search over 2 libraries; Pro at 15.8 dollars with 25 libraries, 80 sources, 3,000 credits and unlimited cross-library search; Max at 32.5 dollars with unlimited libraries, 500 sources, 10,000 credits and priority processing. Annual billing includes two months free.Does ConceptSeek offer a free trial?
Every plan comes with a seven-day free trial, and the first month carries a seven-day money-back guarantee.How do you use ConceptSeek?
The walkthrough on this page covers 6 steps: 1. Create an account and pick a plan 2. Build your first library 3. Add sources to the library 4. Run a concept search 5. Inspect connections with Threads 6. Save the search and widen the scope.What platforms does ConceptSeek support?
ConceptSeek is available on Web App.What are the limitations of ConceptSeek?
Credits are consumed per search, so heavy comparison work can outpace the monthly allowance. Cross-library search is capped at two libraries on the Starter plan. Input is limited to YouTube, podcasts, PDFs and text notes; general web pages are not in the stated scope.
Status
StatusActive
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Added10/21/2026
Platforms
Web App
Pricing
Free TrialSubscriptionPaid
