Retell AI
Voice-agent platform that wires STT, LLM, and TTS providers into production phone calls.
Our editorial assessment, based on the public sources listed below. Last reviewed .
- Task rank
- #23
- Tier
- A
- Score
- 72.6
Strengths
- Model-agnostic: mix Deepgram, OpenAI, and ElevenLabs in one agent
- Built-in telephony with call logs, transcripts, and debugging
- Free minutes on signup and per-minute platform pricing
Considerations
- Provider costs for STT, LLM, and TTS are billed separately on top
- Aimed at developers building call flows, not one-off voiceovers
Price
Platform fee around $0.05/min plus provider costs; free minutes on signup
Shown for reference — price is not part of the score.
Score breakdown
- Performance
- 72.0
- 55% of score
- Reputation
- 70.0
- 35% of score
- Recency
- 85.0
- 10% of score
The overall score combines these sub-scores using the weights shown. How we score →
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
- Pricing
- Benchmark
- Reputation
- Feature list
Checked against the sources listed below.
Sources
- GTM Index: best voice AI agents 2026 (opens in a new tab)Accessed:
- Bland AI — 13 Best AI TTS Tools 2026 (opens in a new tab)Accessed:
- Inworld: best AI infrastructure for assistants 2026 (opens in a new tab)Accessed:
- Top Voice AI Agents 2026 (Deepgram) (opens in a new tab)Accessed:
- 8 Best AI Voice Generators for Enterprise 2026 (Rasa) (opens in a new tab)Accessed:
Show 2 more sources
Alternatives in Voice / TTS
- #1ElevenLabsSScore 96.4Voice generation platform with a 3,000+ voice library, cross-lingual cloning, and the expressive Eleven v3 model used widely for agents, dubbing, and long-form narration.
- #2CartesiaSScore 86.6Real-time voice agent TTS built on a state-space model, with Sonic 3 hitting roughly 40–90ms time-to-first-audio and 3-second voice cloning.
- #22Bland AIAScore 72.6Self-hosted voice AI platform with custom voices built for data privacy.