- input
- $0.05
- cached
- $0.003
- output
- $0.50
- Context
- 1Mtokens
- Released
- 2w ago
Cost/1M tokens
Particle-1 is a model from Particle AI, post-trained on DeepSeek V4.1 Flash. Its launch centers on token efficiency: the maker says the model uses roughly 45% fewer tokens on average across varied tasks while keeping accuracy comparable to its base model, so tasks finish sooner. The first release targets software engineering, with other domains planned for future versions.
- Multimodal model
- Accepts images
- 1M context
- Reasoning
- Tools
- Structured output
How it compares
Family tree
Models trained from one another, as their makers describe it.
DeepSeek V4.1 FlashDeepSeek · 2026
Frequently asked questions
API and pricing
Particle-1 costs $0.05 per 1M input tokens and $0.50 per 1M output tokens.
Yes, Particle-1 supports prompt caching. Cached input costs $0.003 per 1M tokens versus $0.05 for uncached input, a 94% discount.
A typical request with 10,000 input tokens and 1,000 output tokens costs $0.001 at the cheapest provider, Particle AI.
Yes, Particle-1 API endpoints look reliable. In the last day, 1 endpoint had uptime data, 1 was at 99% uptime or better, and the best uptime was 100.0%, by Particle AI.
Privacy and data
Particle AI offers zero data retention for Particle-1.
Capabilities and specs
Particle-1 has a context window of 1M tokens (1,048,576) and a maximum output of 131K tokens (131,072).
Particle-1 accepts text and image inputs. Audio, video and PDFs are not among its listed input modalities.
Yes, Particle-1 supports tool calling (function calling).
Yes, Particle-1 supports structured output (JSON schema or JSON mode).
Yes, Particle-1 has a reasoning mode. Effort levels are max, xhigh, high, medium, low, minimal and none, with high as the default, set via reasoning_effort. Reasoning is not always on.
Quality and benchmarks
Muse Ember by Meta, Claude Haiku 5.5 by Anthropic and GPT-6 Luna by OpenAI are alternatives at a similar price. Each has a blended price of $0.20 per 1M tokens, matched on model kind, blended price and release date.
Muse EmberParticle-1 vs Muse EmberClaude Haiku 5.5Particle-1 vs Claude Haiku 5.5GPT-6 LunaParticle-1 vs GPT-6 Luna
Versions and lineage
Particle-1 is fine-tuned from DeepSeek V4.1 Flash.
Basics
Particle-1 was made by Particle AI and released on October 28, 2026.
No. The listed API price is $0.05 input and $0.50 output per 1M tokens, and its openness is unknown.
Generated from Vertical Tabs data, updated November 9, 2026.
Discussion
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