AssemblyAI vs Quo
Which Voice & Speech AI tool is better in 2026?
AssemblyAI
AI models for accurate speech recognition
Quo
AI-driven business phone and front office for growing teams
Side-by-side
Quo is the more established option (raised $161M), but AssemblyAI is cheaper to start.
| Metric | AssemblyAI | Quo |
|---|---|---|
| Taglinei | AI models for accurate speech recognition | AI-driven business phone and front office for growing teams |
| Foundedi | 2017🏆 | 2018 |
| HQi | San Francisco, US | San Francisco, United States |
| Employeesi | 100-200🏆 | — |
| Neuron scorei | 48 | 75🏆 |
| Total fundingi | $78M | $161M🏆 |
| Latest roundi | Series B · Sep 2022 | Growth · Sep 2025 |
| Valuationi | $500M🏆 | — |
| Cheapest paid plani | Pricing not disclosed🏆 | From $15/mo |
| Free plani | ✓ | ✗ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free | Free trial · From $15/mo |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for AssemblyAI and Quo.
| Capability | AssemblyAI | Quo |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✓ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 7 (Python, TypeScript, JavaScript, Go…) | — |
| Free plan | ✓ | ✗ |
| Free trial | ✗ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of AssemblyAI
- Offers a free plan
- More mature (2017)
- Verified profile
🔵 Strengths of Quo
- Has raised more capital ($161M vs $78M)
- Higher Neuron score (75 vs 48)
- Offers a free trial
- Newer company (2018)
Which should you choose?
Choose AssemblyAI if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Voice & Speech tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Quo if you want the most established option — it has raised $161M, 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
AssemblyAI vs Quo — which is better?
It depends on your priority. AssemblyAI is the leaner option; Quo has broader feature depth. See the side-by-side table above.
Is AssemblyAI cheaper than Quo?
Yes — AssemblyAI's cheapest paid plan is Free, while Quo's is Free trial · From $15/mo.
Do AssemblyAI and Quo offer free plans?
AssemblyAI: Yes, has a free plan. Quo: Free trial only.
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