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Particle-1
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Particle-1

Particle-1 is a token-efficient agentic coding model from Particle AI, post-trained on DeepSeek V4.1 Flash. It is suited for software engineering work such as terminal workflows, codebase changes,.

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Starting price Pay per token - $0.050/1M input / $0.500/1M output

Tool Information

Particle-1 is an AI tool in the AI Productivity category.

Key features

  • Captures notes, tasks and meetings in one place
  • Summarises calls and turns them into action items
  • Automates repetitive admin work
  • Syncs with the calendar and inbox you already use

Use cases

  • Meeting notes and follow-ups
  • Inbox triage
  • Turning notes into tasks

Pricing

Model: Freemium · Free tier: Yes · Paid plans: published on the official website

Who it’s for

Particle-1 is built for operators and small teams who need a repeatable way to handle AI Productivity work without running their own models or infrastructure.

Plans, seat limits and usage quotas change often, so confirm the current offer on the official website before you commit.

F.A.Q (5)

Particle-1 is a token-efficient agentic coding model from Particle AI, post-trained on DeepSeek V4.1 Flash. It is suited for software engineering work such as terminal workflows, codebase changes,.

$0.050/1M per 1M input tokens and $0.500/1M per 1M output tokens through OpenRouter.

Particle-1 supports up to 1,048,576 tokens of context.

Developers and teams building products on Particle AI models via the OpenRouter API.

Create an OpenRouter API key, point your client at the model id particle-ai/particle-1, and send requests with the OpenAI-compatible schema.

Pros and Cons

Pros

  • Strong context window (1
  • 048
  • 576 tokens)
  • Available through one API key
  • Transparent per-token pricing

Cons

  • Costs scale with usage
  • Latency varies by provider
  • Token limits apply per request

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