Retell AI
1 model across 1 family · Latest: Tell-1 (2026-11)
AI voice agent platform for phone calls, and maker of the Tell-1 LLM.
Retell AI's portfolio covers 1 active model across 1 current family, spanning agents and json / tool use. Open a model detail page to compare provider routes and sourced benchmarks.
Covers 2 workload areas across 1 active tracked model; last verified 2026-11-14.
Use it for
- Teams evaluating agents and json / tool use across this lab's releases
- Comparing model families before committing to a flagship
- Migration and pricing follow-ups across 1 tracked models
Do not use it for
- Choosing a hosting provider without opening a model page for price ladders
Active models
1
Current models from this lab, excluding deprecated ones
Active families
1
Current model families from this lab
Open catalog
0 open
0 open source / 0 open weights
Lowest output price
Not tracked
No provider output pricing linked yet
Latest dated release
2026-11-13
Tell-1
Freshness
2026-11-14
Researched today
Information
Release cadence
- Dated releases
- 1
- Latest model
- Tell-1
- Latest date
- 2026-11-13
Where this lab wins
- Agentic: 1 tracked model with BFCL, tau-bench, and SWE-bench tool-use coverage.
- JSON/tool-use: 1 tracked model with BFCL / Nexus strict-JSON routing coverage.
Flagship quality / price signal
- Flagship
- Tell-1
- Selection source
- Best sourced coding Q/$
- Coding grade
- unknown
- Benchmark / output price
- Not enough sourced benchmark and price coverage
About
Retell AI makes a platform for building, testing and deploying AI phone agents for contact centers. Its Retell Labs team trains Tell-1, Retell's own LLM for live calls.
Featured models
| Model | Released | Context | Input price ($/1M) | Output price ($/1M) | License | Openness |
|---|---|---|---|---|---|---|
| Tell-1 | 2026-11-13 | - | - | - | Proprietary | Proprietary |
Model families
Recent releases
- Tell-1- 2026-11-13
Explore related pages
Last reviewed: 2026-11-14. Data sourced from public lab announcements and provider documentation.