PolyAI vs Signals
Which Customer Support AI tool is better in 2026?
PolyAI
The world's most lifelike voice AI agents for enterprise customer service.
Signals
Proactive AI customer support that engages high-value users
Side-by-side
PolyAI is the more established option (raised $120M); pricing is comparable on both sides.
| Metric | PolyAI | Signals |
|---|---|---|
| Taglinei | The world's most lifelike voice AI agents for enterprise customer service. | Proactive AI customer support that engages high-value users |
| Foundedi | 2017🏆 | 2026 |
| HQi | London, GB | San Francisco, US |
| Employeesi | 201-500 | 1-10🏆 |
| Neuron scorei | 58🏆 | 50 |
| Total fundingi | $120M🏆 | $500K |
| Latest roundi | Series C · May 2024 | Seed · Jan 2026 |
| Valuationi | — | — |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Pricing not listed |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for PolyAI and Signals.
| Capability | PolyAI | Signals |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (JavaScript, Python) | — |
| Free plan | ✗ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of PolyAI
- Has raised more capital ($120M vs $500K)
- Higher Neuron score (58 vs 50)
- Offers a free trial
- More mature (2017)
🔵 Strengths of Signals
- Newer company (2026)
Which should you choose?
Choose Signals if price matters most — it starts at Pricing not listed, which is friendlier for teams watching burn. Both AI Customer Support tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose PolyAI if you want the most established option — it has raised $120M, 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
PolyAI vs Signals — which is better?
It depends on your priority. PolyAI has raised more capital and is the more established option; Signals has broader feature depth. See the side-by-side table above.
Is PolyAI cheaper than Signals?
No — Signals's cheapest paid plan is Pricing not listed, while PolyAI's is Enterprise · Contact sales.
Do PolyAI and Signals offer free plans?
PolyAI: Free trial only. Signals: Paid only.
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