ToolRankBest AI research and productivity tools for enterprise buyers
Updated 17 Oct 2026 · Prices from vendor pages only · How we rank →
The short answer
Each of these AI research and productivity tools lists an Enterprise or custom-priced plan, the usual route to SSO, contracts and volume pricing. Perplexity comes first: cited answers across top models with deep research, free to start. The cheapest verified paid plan here is Notion AI Plus ($10/member/month). 3 of the 4 have a free plan we could confirm. Every price below is from the vendor’s own page, checked 16–17 Oct 2026.
Ranked shortlist
- Perplexity: Cited answers across top models with deep research, free to start. Plan: Enterprise: Contact sales
- Notion AI: AI built into the docs and databases teams already use, with custom agents on Business. Plan: Enterprise: Contact sales
- Granola: AI notepad that enhances your meeting notes without a bot. Plan: Enterprise: $35/user/month
- SciSpace: AI research assistant for reading and searching papers. Plan: Enterprise: Apply for access (custom)
Order follows ToolRank’s editorial ranking in Research & Productivity, filtered to tools that fit this page. Anything we couldn’t confirm on a vendor page says “Not yet verified”.
Side by side
| Rank | Tool | Relevant plan | Starting price | Free plan | Best for | Main limitation | Last checked |
|---|---|---|---|---|---|---|---|
| #1 | Perplexity | Enterprise: Contact sales | $17/month (Pro, billed annually) | Free sign-up; limits not specified on page | Fast researched answers with sources | Deep research, top models and higher limits need Pro ($17/month annual) or Max. | 16 Oct 2026 |
| #2 | Notion AI | Enterprise: Contact sales | $20/member/month (Business, includes Notion AI) | Free plan includes a trial of Notion AI only | Teams whose knowledge already lives in Notion | Free and Plus only include an AI trial; full AI needs Business ($20/member/month). | 16 Oct 2026 |
| #3 | Granola | Enterprise: $35/user/month | $14/user/month (Business) | Basic: $0 | Bot-free AI meeting notes | Team features need Business | 16 Oct 2026 |
| #4 | SciSpace | Enterprise: Apply for access (custom) | $12/month (Premium, billed annually; $20 monthly) | Not yet verified | Researchers doing literature reviews and chatting with papers | The upper plans are expensive for individuals | 17 Oct 2026 |
Prices as listed by each vendor on the last-checked date, USD, before tax. Plans and limits change, so follow the sources below.
Who should pick which
Pick Perplexity for fast researched answers with sources (Enterprise: Contact sales); think twice if you need long creative writing rather than research. Pick Notion AI for teams whose knowledge already lives in Notion (Enterprise: Contact sales); think twice if you don't use Notion. Pick Granola for bot-free AI meeting notes (Enterprise: $35/user/month). Watch out: team features need Business. Pick SciSpace for researchers doing literature reviews and chatting with papers (Enterprise: Apply for access (custom)). Watch out: the upper plans are expensive for individuals.
FAQ
Which of these is cheapest?
Notion AI Plus ($10/member/month) is the lowest paid price we verified on this list (https://www.notion.com/pricing, checked 16 Oct 2026). Check the vendor page for tax, billing period and usage limits.
Which of these have a free plan?
Perplexity: Free sign-up; limits not specified on page; Notion AI: Free plan includes a trial of Notion AI only; Granola: Basic: $0.
How were these tools chosen?
They are the tools in ToolRank's rankings with an Enterprise or custom plan on the pricing page, confirmed on the vendor's own website on 16–17 Oct 2026. Tools we could not verify are left out rather than guessed, and anything unconfirmed is marked Not yet verified.
Sources
- Perplexity: Perplexity plans checked 16 Oct 2026
- Notion AI: Notion pricing checked 16 Oct 2026
- Granola: Granola pricing checked 16 Oct 2026
- SciSpace: SciSpace pricing checked 17 Oct 2026
Related comparisons
Profiles: Perplexity · Notion AI · Granola · SciSpace
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