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, and data...
With CoreAI, you can start chatting with Particle AI: Particle-1 instantly — no separate subscription needed. CoreAI lets you chat with Particle AI: Particle-1 alongside 300+ other AI models from Particle-ai and other providers like OpenAI, Anthropic, Google, Meta, and more.
Among the 406 chat models on CoreAI, Particle AI: Particle-1 ranks #44 by context window — 1.0M tokens, roughly 786,432 words or 1,573 pages of text in a single conversation. On price, it is the #20 cheapest of 197 standard-tier models by input cost. Released 2026-10-28, it is one of the 1 newest additions to the catalog. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through Particle AI: Particle-1 and MoonshotAI: Kimi K3.1 Pro side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00075 on Particle AI: Particle-1's raw per-token rates; a heavy session with a 50K-token document costs about $0.018. On CoreAI you don't juggle these numbers — one subscription covers Particle AI: Particle-1 and 300+ other models under a plan usage limit, with no API keys. See plans.
Particle AI: Particle-1 handles 1.0M tokens of context — roughly 786,432 words, or about 1,573 pages of text in one conversation.
Particle AI: Particle-1's underlying rates are $0.25 per 1M input tokens and $1 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — Particle AI: Particle-1 accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. Particle AI: Particle-1 can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick Particle AI: Particle-1 in the model selector, and chat — no API key, no per-token billing. One subscription covers Particle AI: Particle-1 and 300+ other models.
The closest alternatives on CoreAI are MoonshotAI: Kimi K3.1 Pro, Z.ai: GLM 5.2 — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
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