All tasks / Tools
Retell AI
Platform for building, testing and deploying AI phone agents, with selectable LLM, voice and speech-to-speech models.
- Retell AI
- Cloud
- Free tier · paid plans
Where it ranks
- BVoice agentsVoice-agent platforms · Cloud · via GPT-Realtime-2.1
Ranked by its own benchmark result where it has one; otherwise by the best model it offers.
Facts
- Vendor
- Retell AI
- Approach
- Voice-agent platforms
- Where it runs
- Cloud only: needs the vendor’s service
- Interface
- Web app, API
- Skill level
- Intermediate: some setup or configuration
- Price
- Free tier · paid plans
- Pricing notes
- Pay as you go with $10 free credits: $0.07-$0.31 per minute for voice agents; GPT Realtime 2.1 as speech-to-speech engine $0.38/min; Enterprise custom.
- Source code
- Closed source
- Last verified
- 18 Oct 2026
Price from retellai.com, 18 Oct 2026.
Models it gives you
- BGPT-Realtime-2.1OpenAI · closed
Its own benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| Cekura Bench: voice agent platforms (workflow benchmark v1) | 75.6% | RetellPlatform-chosen stack (LLM gpt-5.5 per published config); frozen v1 release. | 12 Oct 2026 | benchmarks.cekura.ai |