Particle-1 is Particle's language model with a 1.0M context window and up to 131K output tokens, starting at $0.125 / 1M input and $0.5 / 1M output. An agentic coding model post-trained on DeepSeek V4.1 Flash that supports text and image inputs with reasoning and tool use for token-efficient software engineering tasks.
Capabilities
Input1/5
Text·
Image✓
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities3/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | ||
|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
| $0.125 | $0.5 | $0.015 | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Particle-1 | 1.0M | $0.125 | $0.500 | Current | |
| Particle-1 | 1.0M | $0.050 | $0.500 | Available |