Side-by-side comparison · Research & Search
Kagi vs NotebookLM vs Prompt Cowboy
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: People who search all day for work and are tired of ads and spammy results.
Pick it if: Anyone who needs to understand or explain a set of documents they don't have time to read properly.
Pick it if: Anyone who feels their AI results are mediocre and suspects the prompt is the reason.
Overview
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
|---|---|---|---|
| In one line | A paid search engine with no ads or tracking, plus an AI assistant that cites sources. | Upload your own documents and ask questions that only draw on those sources. | Turns a rough one-line idea into a detailed, well-structured prompt for any AI tool. |
| Pricing model | Paid | Freemium | Freemium |
| Starting price | $5/mo | $4.99/mo | $8/mo |
| Free plan | No | Yes | Yes |
| Works with Claude Code | Yes | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
|---|---|---|---|
| Overall rating | 4.3 | 4.5Winner | 4.2 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 5.0 | 5.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.5 | 4.5 | 4.0 |
| Output qualityHow good the results are before you fix them. | 4.5 | 4.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.5 | 5.0 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.5 | 4.0 | 4.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
|---|---|---|---|
| Access & platform | |||
| Free plan | No | Yes | Yes |
| Mobile app | Yes | Yes | No |
| Desktop app | No | No | No |
| Browser extension | Yes | Yes | – |
| API access | Yes | – | – |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | No | Yes | No |
| Connects to other apps | Yes | Yes | No |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | Yes | Yes | No |
| Understands images | Yes | Yes | No |
| Makes images | No | Yes | No |
| Makes video | No | Yes | No |
| Writes code | Yes | No | No |
| Runs agents or automations | No | No | No |
| Learns your brand or style | – | No | Yes |
| Works in many languages | Yes | Yes | – |
| Capabilities score | 9/ 17 | 11/ 17 | 3/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
|---|---|---|---|
| Plans | Trial Free Seeing the difference. | FreeOur pick Free Almost everyone. Try this before paying for anything. | FreeOur pick Free Learning what a good prompt looks like. |
Starter $5/mo Light searchers. | Google AI Plus $4.99/mo People who hit the free limits now and then. | Individual $8/mo People who use it daily and want prompts in their own voice. | |
ProfessionalOur pick $10/mo Anyone who searches every day. | Google AI Pro $19.99/mo Heavy users who also want Gemini Pro and Deep Research. | Team $8/seat/mo Small teams who want shared instructions. | |
Ultimate $25/mo Heavy AI users. | Google AI Ultra From $99.99/mo Power users who want the top of everything Google offers. | ||
Duo and Family Duo $14/mo, Family $20/mo Couples and households. | |||
| Which plan to pick | Use the free trial for a week, then take Professional. 300 searches on Starter goes in a couple of weeks for most people. Only pay for Ultimate if you'd otherwise pay for an AI chat subscription, since it bundles the top models. Yearly billing saves 10%. | Stay on Free until it stops you doing something. If that happens, Google AI Pro is the sensible step because it also upgrades Gemini and Deep Research, which you will probably want anyway. AI Plus is a cheap middle step if NotebookLM is all you care about. | Free is genuinely enough for most people. Pay for Individual only if you are writing prompts all day and the style matching would save you editing time. Team costs the same per seat, so if more than one person will use it, take Team for the shared instructions and single bill. |
Key features
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
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Pros and cons
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
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Who each one is for
| Attribute | Kagi | NotebookLM | Prompt Cowboy |
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Questions people ask
Which is better, Kagi, NotebookLM or Prompt Cowboy?
NotebookLM scores highest overall in our ratings (Kagi 4.3/5, NotebookLM 4.5/5 and Prompt Cowboy 4.2/5). Kagi is best for everyday search without ads or tracking and research where you want trustworthy sources. NotebookLM is best for summarising long reports and questioning a set of PDFs. Prompt Cowboy is best for better prompts for Claude and ChatGPT and deep-research briefs.
Which is cheaper, Kagi, NotebookLM or Prompt Cowboy?
Kagi: There's no free plan. Paid plans start at $5/mo. NotebookLM: There's a free plan, and paid plans start at $4.99/mo. Prompt Cowboy: There's a free plan, and paid plans start at $8/mo.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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