AI Flash Report
Major Release Particle AI · Released

Particle-1

What is Particle-1?

Particle-1 is a Major Release AI model from Particle AI, released on October 28, 2026. It has a 1M tokens context window, costs $0.05 per million input tokens. It is available via API.

Particle-1 is a token-efficient agentic coding model from Particle AI, post-trained on DeepSeek V4.1 Flash.

How much does Particle-1 cost?

Particle-1 pricing
Metric Price
input per mtok $0.05
output per mtok $0.50

Pricing data verified .

Price history for Particle-1 →

What context window does Particle-1 have?

Context window
1M tokens
Input modalities
text, image
Output modalities
text