Exa vs Lemma
Which Agents AI tool is better in 2026?
Exa
Search for AI applications
Lemma
Reliability platform that catches AI agent regressions and auto-optimizes prompts in production.
Side-by-side
Exa is the more established option (raised $102M); pricing is comparable on both sides.
| Metric | Exa | Lemma |
|---|---|---|
| Taglinei | Search for AI applications | Reliability platform that catches AI agent regressions and auto-optimizes prompts in production. |
| Foundedi | 2022🏆 | 2025 |
| HQi | San Francisco, US | San Francisco, US |
| Employeesi | 20-50🏆 | — |
| Neuron scorei | 56🏆 | 55 |
| Total fundingi | $102M🏆 | $500K |
| Latest roundi | Series B · Sep 2025 | Seed · Sep 2025 |
| Valuationi | $700M🏆 | — |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✓ Free | ✗ |
| Free triali | ✓ | ✓ |
| Top tier pricei | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summaryi | 3 published plans | Free trial |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Exa and Lemma.
| Capability | Exa | Lemma |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 3 (Python, JavaScript, TypeScript) | — |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Exa
- Has raised more capital ($102M vs $500K)
- Higher Neuron score (56 vs 55)
- Offers a free plan
- More mature (2022)
🔵 Strengths of Lemma
- Newer company (2025)
Which should you choose?
Choose Lemma if price matters most — it starts at Free trial, 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 Exa if you want the most established option — it has raised $102M, 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
Exa vs Lemma — which is better?
It depends on your priority. Exa has raised more capital and is the more established option; Lemma has broader feature depth. See the side-by-side table above.
Is Exa cheaper than Lemma?
No — Lemma's cheapest paid plan is Free trial, while Exa's is Free.
Do Exa and Lemma offer free plans?
Exa: Yes, has a free plan. Lemma: Free trial only.
Explore more AI Agents tools
Contextual paths to related AI startups, deals and rankings.