Particle AI: Particle-1

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

Context
1.0M
Max output
131K
Input price
$0.25/1M tokens
Output price
$1/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDparticle-ai/particle-1
Provider OpenRouter
Creator particle-ai
Family—
License—
Status—
Type—
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output131K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.25
Output
$1
Cache write
—
Cache read
$0
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/particle-ai/particle-1