AI21 Labs vs Exa
Which Agents AI tool is better in 2026?
AI21 Labs
Advanced language AI for enterprise applications
Exa
Search for AI applications
Side-by-side
| AI21 Labs | Exa | |
|---|---|---|
| Tagline | Advanced language AI for enterprise applications | Search for AI applications |
| Founded | 2017 | 2022 |
| HQ | Tel Aviv, IL | San Francisco, US |
| Employees | 200-500 | 20-50 |
| Total funding | $336M | $17M |
| Latest round | Series C | series-a · Nov 2023 |
| Valuation | $1.4B | $150M |
| Cheapest paid plan | — | — |
| Free plan | ✗ | ✓ Free |
| Free trial | ✓ | ✓ |
| Top tier price | Enterprise / Custom Solutions · Contact sales | Enterprise · Contact sales |
| Pricing summary | 2 published plans | 3 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for AI21 Labs and Exa.
| Capability | AI21 Labs | Exa |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (Python, TypeScript) | 3 (Python, JavaScript, TypeScript) |
| Free plan | ✗ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✓ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of AI21 Labs
- Has raised more capital ($336M vs $17M)
- More mature (2017)
🔵 Strengths of Exa
- Higher Neuron score (51 vs 49)
- Offers a free plan
- Newer company (2022)
Which should you choose?
Choose Exa if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Agents tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose AI21 Labs if you want the most established option — it has raised $336M, 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
AI21 Labs vs Exa — which is better?
It depends on your priority. AI21 Labs has raised more capital and is the more established option; Exa has broader feature depth. See the side-by-side table above.
Is AI21 Labs cheaper than Exa?
No — Exa's cheapest paid plan is Free, while AI21 Labs's is Free trial.
Do AI21 Labs and Exa offer free plans?
AI21 Labs: Free trial only. Exa: Yes, has a free plan.
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