Glean vs Instantly.ai: 2026 comparison
Enterprise AI worker — unified search, work assistant, and custom agents grounded in your company knowledge.
Cold-email infrastructure — unlimited sending accounts, AI personalization, and built-in inbox warming.
Glean vs Instantly.ai — specs
| Spec | Glean | Instantly.ai |
|---|---|---|
| Agent Rank | 80 / 100 (A) | 60 / 100 (B) |
| Autonomy | Assistant | Semi-autonomous |
| Pricing | Subscription · Free tier | Subscription · from $37 |
| Open source | No | No |
| Capabilities | RAG, Memory, Tool use | Tool use, Memory |
| Integrations | 6 apps | 4 apps |
| Verified | Verified | Verified |
| Released | Feb 2025 | Jul 2025 |
Agent Rank breakdown
- Autonomy fit
- 7
- Capabilities
- 6
- Integrations
- 10
- Pricing value
- 9
- Polish & maturity
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- Autonomy fit
- 8
- Capabilities
- 4
- Integrations
- 6
- Pricing value
- 7
- Polish & maturity
- 4
- Verifiability
- 7
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
- +Single best enterprise knowledge agent in 2026 — instant grounding in your company data
- +Custom Agents (Glean Agents) let teams build internal workflows without code
- +Strong permission-aware retrieval — agents see only what users are allowed to
- −Enterprise-only — typically $50K+ ACV minimum
- −Initial connector setup takes weeks for full coverage
- −Pricier than ChatGPT Enterprise on a per-seat basis
Pricing
- +Unified search across 100+ apps
- +Work assistant + custom agents
- +SSO + enterprise data isolation
Which one should you pick?
Pick Instantly.ai if you want the highest autonomy and the verification loop is in place.
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Frequently asked
Should I pick Glean or Instantly.ai in 2026?+
Pick Glean if cost is the main constraint. Pick Instantly.ai if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Glean for primary work and Instantly.ai for the workflows where its specific strengths matter.
What's the price difference between Glean and Instantly.ai?+
Glean starts at Subscription · Free tier; Instantly.ai starts at Subscription · from $37. Glean is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Glean or Instantly.ai?+
Instantly.ai is the more autonomous of the two (Semi-autonomous vs Assistant). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.