ARKAbrain is the brain behind ARKA-AI - an intelligent system that automatically selects the best AI model for each task.
Instead of manually choosing which AI model to use (GPT-4o? Claude? Gemini?), ARKAbrain analyzes your request and automatically routes it to the optimal model. This saves you time, money, and delivers better results.
No need to understand model differences - ARKAbrain picks the best one.
Uses cheaper models for simple tasks, saving you up to 60% on API costs.
If a model fails, ARKAbrain automatically tries alternatives.
Works across OpenAI and OpenRouter for maximum model coverage.
ARKAbrain uses a two-stage classification system:
ARKAbrain first identifies what type of task you're performing:
rewrite_editingsummarizationexplain_simpleseo_marketingprompt_optimizationcoding_debugginggeneral_chatThe system evaluates complexity based on input length, vocabulary, and task requirements. This determines whether to use a fast/cheap model or a powerful/premium one.
Based on task + complexity, ARKAbrain assigns a role (FAST_CHEAP, BALANCED, CODING, etc.) and picks the best available model from your configured providers.
The request is sent to the selected model. If it fails (rate limit, error, etc.), ARKAbrain automatically retries with fallback models until it succeeds.
ARKAbrain categorizes models into 6 roles based on their strengths:
| Role | Primary | Best For |
|---|---|---|
| FAST_CHEAP | GPT-4o Mini | Quick, simple tasks |
| BALANCED | GPT-4o | General purpose |
| REASONING | o1 Mini | Complex analysis, math |
| CODING | GPT-4o | Code generation, debugging |
| LONG_CONTEXT | Gemini 1.5 Pro | Large documents (up to 2M tokens) |
| SEO_WRITER | GPT-4o | Marketing copy, SEO content |
Pro Plan Advantage
Pro plan users get access to premium roles (REASONING, CODING, LONG_CONTEXT, SEO_WRITER). Starter users get BALANCED routing for these tasks, which still delivers great results.