Cartesia vs Speechmatics
Which Developer Tools AI tool is better in 2026?
Cartesia
Ultra-fast voice AI for real-time applications
Speechmatics
Speech APIs powering Voice AI with low-latency speech-to-text for multilingual, multi-speaker conversations.
Side-by-side
| Cartesia | Speechmatics | |
|---|---|---|
| Tagline | Ultra-fast voice AI for real-time applications | Speech APIs powering Voice AI with low-latency speech-to-text for multilingual, multi-speaker conversations. |
| Founded | 2023 | — |
| HQ | San Francisco, US | GB |
| Employees | 20-50 | 51-200 |
| Total funding | $65M | Undisclosed |
| Latest round | Series A | — |
| Valuation | $400M | — |
| Cheapest paid plan | — | — |
| Free plan | ✓ Free Tier | ✓ Free API Key |
| Free trial | ✓ | ✓ |
| Top tier price | Custom / Enterprise · Contact sales | Enterprise/Custom · Contact sales |
| Pricing summary | 2 published plans | 2 published plans |
| Categories |
Capability matrix
Developer-facing capabilities and access signals for Cartesia and Speechmatics.
| Capability | Cartesia | Speechmatics |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (Python, JavaScript/TypeScript) | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Cartesia
- Has raised more capital ($65M vs Undisclosed)
- Higher Neuron score (47 vs 26)
- Newer company (2023)
- Verified profile
🔵 Strengths of Speechmatics
- Strong in AI Developer Tools
Which should you choose?
Choose Speechmatics if price matters most — it starts at Free, 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 Cartesia if you want the most established option — it has raised $65M, 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 Speechmatics — which is better?
It depends on your priority. Cartesia has raised more capital and is the more established option; Speechmatics has broader feature depth. See the side-by-side table above.
Is Cartesia cheaper than Speechmatics?
No — Speechmatics's cheapest paid plan is Free, while Cartesia's is Free.
Do Cartesia and Speechmatics offer free plans?
Cartesia: Yes, has a free plan. Speechmatics: Yes, has a free plan.
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