Cartesia vs Hume AI
Which Developer Tools AI tool is better in 2026?
Cartesia
Ultra-fast voice AI for real-time applications
Hume AI
Empathic AI voice and emotion intelligence
Side-by-side
| Cartesia | Hume AI | |
|---|---|---|
| Tagline | Ultra-fast voice AI for real-time applications | Empathic AI voice and emotion intelligence |
| Founded | 2023 | 2021 |
| HQ | San Francisco, US | New York, US |
| Employees | 20-50 | 11-50 |
| Total funding | $65M | $73.9M |
| Latest round | Series A | Series B · Mar 2024 |
| Valuation | $400M | $219M |
| Cheapest paid plan | — | — |
| Free plan | ✓ Free Tier | ✗ |
| Free trial | ✓ | ✗ |
| Top tier price | Custom / Enterprise · Contact sales | Contact Sales · Contact sales |
| Pricing summary | 2 published plans | 1 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for Cartesia and Hume AI.
| Capability | Cartesia | Hume AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (Python, JavaScript/TypeScript) | 2 (Python, TypeScript) |
| Free plan | ✓ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✓ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Cartesia
- Offers a free plan
- Offers a free trial
- Newer company (2023)
🔵 Strengths of Hume AI
- Has raised more capital ($73.9M vs $65M)
- Higher Neuron score (52 vs 47)
- More mature (2021)
Which should you choose?
Choose Hume AI if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Developer Tools tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Hume AI if you want the most established option — it has raised $73.9M, 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
Cartesia vs Hume AI — which is better?
It depends on your priority. Cartesia is the leaner option; Hume AI has broader feature depth. See the side-by-side table above.
Is Cartesia cheaper than Hume AI?
No — Hume AI's cheapest paid plan is Enterprise · Contact sales, while Cartesia's is Free.
Do Cartesia and Hume AI offer free plans?
Cartesia: Yes, has a free plan. Hume AI: Paid only.
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