Decide
Side by side.
Structured comparison across all six TIP Score pillars plus pricing, maturity and fit — the highest value in each row is highlighted.
GleanNotebookLMPerplexity
The verdict
Choose Glean for enterprise knowledge discovery. Choose NotebookLM for studying document sets. Choose Perplexity for market & competitive research.
Glean takes integrations & ecosystem (+18) and maturity & reliability (+12); NotebookLM answers on value for money (+16). On the overall score it isn't close: Glean by 3.1.
| Criteria | Glean Glean | NotebookLM | Perplexity Perplexity AI |
|---|---|---|---|
| TIP Score | 86.3ExcellentBest | 83.2Excellent | 83.1Excellent |
| Capability30% | 87 | 85 | 87 |
| Value for Money15% | 74 | 90 | 85 |
| Security & Compliance15% | 93 | 84 | 76 |
| Integrations & Ecosystem15% | 92 | 74 | 78 |
| Maturity & Reliability10% | 88 | 76 | 78 |
| Momentum15% | 84 | 86 | 89 |
| Category | Search & Research | Search & Research | Search & Research |
| Pricing model | Enterprise | Freemium | Freemium |
| Starting price | Custom enterprise pricing | Free / Plus $7.99 / Pro $19.99 (via Google AI plans) | Free / $20 per month (Pro) |
| Maturity | Mature | Established | Established |
| Pricing transparency | Custom quotes only | Public tiers + free entry | Public tiers + free entry |
| Enterprise readiness | Enterprise-ready | Mid-market ready | Mid-market ready |
| Setup lift (est.) | Weeks (vendor-led) | Days to weeks | Days to weeks |
| Ideal buyer | Enterprise knowledge discovery | Studying document sets | Market & competitive research |
| Key risk | Enterprise-only pricing and rollout | Per-notebook source limits constrain very large corpora | Citation quality depends on underlying web sources |