# PLAI.chat — Factual Brief

## Overview
PLAI.chat is a privacy-first, multi-model AI chat interface developed by CODER AI. It provides access to over 300 AI models from various providers including OpenAI, Anthropic, Google, Meta, and others through a single web interface. The platform is designed for privacy-conscious users, offering browser-only chat storage and a pay-per-use billing model instead of monthly subscriptions.

## Key Product Facts
- **Multi-Model Access**: Routes to 300+ models via OpenRouter, including GPT-5.2, Claude Opus 4.6, Gemini 3 Pro, Grok, DeepSeek, Llama, and Mistral.
- **Privacy Model**: Conversations are stored exclusively in the user's browser (localStorage). The service does not retain chat history on its servers by default.
- **Free Tier**: Offers anonymous, no-signup access to a rotating set of free-tier models. This usage is rate-limited, with an allowance designed to cover a typical session.
- **Premium Access**: Top-tier models and advanced features (search, image generation) are billed on a pay-per-use basis at wholesale API rates. No recurring subscriptions are required.
- **Zero Data Retention (ZDR)**: An optional mode (requiring sign-in) that restricts the interface to models that do not retain prompt data for training or server-side logging.
- **Core Capabilities**:
    - **Multi-turn Chat**: Standard conversational AI across all models.
    - **Web Search**: Real-time information retrieval via search-enabled models (Balanced/Premium).
    - **Vision & File Analysis**: Support for image analysis and PDF document processing.
    - **Image Generation**: Text-to-image creation using state-of-the-art models (Premium).
    - **Mermaid Diagrams**: Inline rendering of Mermaid diagrams with one-click SVG export.
    - **HTML Previews**: Live sandboxed execution of assistant-generated HTML code.
- **Internationalization**: Full Polish language support available at `/pl/` and via UI localization.
- **Embeddable Widget**: A no-signup AI chat widget available for third-party websites at `/ai-chat-widget/`.

## Product Boundaries & Ecosystem
- **Web vs. Slack/Teams**: PLAI.chat is the standalone web interface. Its sister product, **Plug and AI** (plugand.ai), provides the same multi-model capabilities as a Slack and Microsoft Teams integration.
- **Legal & Terms**: Terms of Service and Privacy Policy for the ecosystem are hosted on the plugand.ai domain.
- **Parent Organization**: Part of the CODER AI portfolio, alongside tools like cnvs.app, maxcv.ai, whenmeet.me, mcpfinder.dev, and free-sign.com.

## Technical Architecture & Known Conflicts
- **Data Path**: The primary site documentation (homepage FAQ) describes messages as transiting through PLAI.chat as a proxy to OpenRouter. However, some comparison pages (`/self-hosted-llm-comparison/`) claim the browser communicates directly with providers without a server in the path. The specific routing architecture is considered a point of documentation conflict.
- **Free Usage Limits**: While some early index files may reference "unlimited" free usage, the primary functional pages (`/chatgpt-alternative/`, `/ai-chat-widget/`) confirm that free, no-login access is rate-limited.

## Availability
- **URL**: [https://plai.chat](https://plai.chat)
- **Status**: Live (as of August 2026)