Glean vs Onyx
Which Search AI tool is better in 2026?
Glean
Work AI for the entire enterprise
Onyx
Onyx, formerly Danswer, is an open-source enterprise AI search and assistant that connects to
Side-by-side
Glean is the more established option (raised $750M); pricing is comparable on both sides.
| Metric | Glean | Onyx |
|---|---|---|
| Taglinei | Work AI for the entire enterprise | Onyx, formerly Danswer, is an open-source enterprise AI search and assistant that connects to |
| Foundedi | 2019🏆 | — |
| HQi | Palo Alto, US | — |
| Employeesi | 500-1000 | 11-50🏆 |
| Neuron scorei | 58🏆 | 42 |
| Total fundingi | $750M🏆 | $10M |
| Latest roundi | Series F · Jun 2025 | Seed |
| Valuationi | $7.2B🏆 | — |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Glean and Onyx.
| Capability | Glean | Onyx |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 4 (Python, TypeScript, Java, Go) | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Glean
- Has raised more capital ($750M vs $10M)
- Higher Neuron score (58 vs 42)
- Newer company (2019)
- Verified profile
🔵 Strengths of Onyx
- Offers a free plan
- Offers a free trial
Which should you choose?
Choose Onyx if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Search tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Glean if you want the most established option — it has raised $750M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Glean vs Onyx — which is better?
It depends on your priority. Glean has raised more capital and is the more established option; Onyx has broader feature depth. See the side-by-side table above.
Is Glean cheaper than Onyx?
No — Onyx's cheapest paid plan is Free, while Glean's is Enterprise · Contact sales.
Do Glean and Onyx offer free plans?
Glean: Paid only. Onyx: Yes, has a free plan.
Explore more AI Search tools
Contextual paths to related AI startups, deals and rankings.