Compare, 2 models
Side by side.
Lightning V3.1 Pro and Realtime TTS-2 on every board at least two of them share. Blue marks the best in each row.
Specs
List prices, context and published output speed. Blue marks the best in each row.
| Spec | Lightning V3.1 ProSmallest.ai | Realtime TTS-2Inworld |
|---|---|---|
| Lab | Smallest.ai | Inworld |
| Type | Audio | Audio |
| Open weights | No | No |
Benchmarks
Every board where at least two of these models have a published score. Each score links to its source.
| Board | Lightning V3.1 ProSmallest.ai | Realtime TTS-2Inworld |
|---|---|---|
| Speech arenaAudio, higher is better | 1268Oct 2026 | 1268 |
n/a means the board has not published a score for that model.