Letta
lettaSite: letta.com · OpenRouter listing ↗
Sightings observed Letta with 3 models in OpenRouter-published model-page evidence. The app was first observed by Sightings on ; relationship dates record when Sightings first saw each pairing, not when usage began.
- Global rank
- #58
- public app rankings
- Tokens · yday
- 7.9B
- closed UTC day
- Models observed
- 3
- model pages expose top 5
- First observed
- 2025-08-28
- by Sightings
What it is
See which AI models Letta uses on OpenRouter, ranked by token usage. Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.
↗ letta.comModels observed with this app
Early adopter — relationship first observed within 30 days of the model's OpenRouter listing. First-observed dates are when Sightings first saw the pairing, not the start of an app's model usage.
| Model | Tokens · latest | First observed |
|---|---|---|
| MoonshotAI: Kimi K3moonshotai/kimi-k3 | 101B | |
| Meta: Muse Wondermeta/muse-wonderearly adopter | 5.12B | |
| Perceptron: Perceptron Mk1.5perceptron/perceptron-mk1.5early adopter | 25 |