# Particle-1 (free) listed free on OpenRouter

Particle-1: API availability. First seen 12 Nov 2026 Catalogues list a 1,048,576 tokens context window. 6 evidence links.

- Kind: Sighting
- Developer: Particle AI
- Confidence: Observed
- First seen: 2026-11-12T21:40:34.248Z
- Model: [Particle-1](https://alexgetman.com/models/particle-ai/particle-1/)
- Canonical: https://alexgetman.com/signals/2026/11/12/particle-1-free-free-openrouter/

## Evidence links

- [OpenRouter](https://openrouter.ai/particle-ai/particle-1)
- [models.dev · catalogue](https://models.dev/#particle-1)
- [OpenRouter · usage](https://openrouter.ai/rankings)
- [OpenRouter](https://openrouter.ai/particle-ai/particle-1:free)
- [models.dev · catalogue](https://models.dev/#particle-1:free)
- [Primary source (reviewed)](https://particle.ai/blog/introducing-particle-1)