We use cookies to enhance your browsing experience, analyze site traffic, and personalize content. By clicking "Accept All", you consent to our use of cookies. You can customize your preferences or reject non-essential cookies.
Learn more about our cookie policyStop guessing which model to use. The Auto Router analyzes your prompt and selects the optimal model from Claude, GPT-5, Gemini, Grok, and more — powered by NotDiamond.
With 300+ models on AI·Collab, choosing the right one for each task can feel overwhelming. Simple questions don't need a frontier model. Complex coding might. The Auto Router (openrouter/auto) solves this: it analyzes your prompt and automatically selects the best model from a curated set of top performers. Powered by NotDiamond's intelligent routing, it considers prompt complexity, task type, and model capabilities. You get great answers without the guesswork — and you only pay for the model that actually runs your request.
No extra fee — you pay the routed model's rate
The Auto Router adds no markup. You're billed at the standard rate of whichever model is selected. Check the response to see which model was used.
AI·Collab also offers free models you can select manually or explore alongside routing. For which models are free, limits, and how that fits your credits, read Free models on AI·Collab (guide) — it complements this Auto Router overview.
Four simple steps — all invisible to you:
Your prompt is analyzed by NotDiamond's routing system to understand complexity, task type, and requirements.
The router picks the optimal model from a curated set — Claude, GPT-5, Gemini, Grok, DeepSeek, Mistral, and more.
Your request is forwarded to the selected model. You get a normal chat experience — the selection happens behind the scenes.
The response includes which model was used. Check OpenRouter Activity or the response model field to see the selection.
The Auto Router selects from a curated set of high-quality models. The pool is updated as new versions ship. As of June 2026, routing includes:
Model pool may change. See OpenRouter Auto Router page
Select openrouter/auto from the model dropdown in your chat. That's it. Your prompts will be routed automatically. For reproducible workflows, pin a specific model instead.
Browse modelsAll models — including Auto Router — run on our secure AI platform on German servers. ISO 27001 certified, GDPR compliant, no US access.
No. You pay the standard rate for whichever model is selected. There is no additional fee for using the Auto Router.
Yes. The router selects per request. A simple follow-up might get a fast model; a complex coding task might get Claude Opus or GPT-5.2.
You see it in Usage Statistics under "Model" (Account → Usage Statistics → Model).
Use a fixed model when you need reproducibility — e.g., production workflows, audits, or when you've tuned prompts for a specific model.
Yes. Streaming and all standard OpenRouter features (tool calling, etc.) work with the selected model.
Yes. We maintain a catalog of free models (subject to change). Auto Router picks from the routed model pool for your request; you can also pin a free model manually. See the dedicated guide: Free models on AI·Collab (/blog/free-models).
OpenRouter is an aggregator that gives you access to many AI models — Claude, GPT-5, Gemini, Llama, Mistral and more — through one API and one account, instead of signing up with each provider separately. Its Auto Router (openrouter/auto) goes one step further by automatically choosing the best model for each individual prompt.
The main features are: (1) a single unified API for 300+ models across providers, (2) automatic model routing (Auto Router) that selects the optimal model per prompt, (3) transparent per-token pricing with no markup on the Auto Router, (4) automatic fallbacks when a provider is unavailable, and (5) a normalized request/response format so you can switch models without rewriting code.
Yes. OpenRouter routes to globally-hosted model endpoints by default, which can complicate EU data-residency requirements. AI·Collab offers the same automatic ‘best model per prompt’ convenience, but with EU-hosted inference, Zero Data Retention, and a GDPR Data Processing Agreement (DPA) — so teams with compliance obligations get smart routing without sending data outside the EU. See our secure platform overview (/sichere-ki-plattform/).
Auto Router matches every prompt to the right model — saving money, energy, and waste. In AI·Collab, AutoPilot AI is already your default. No switching needed.
Read moreA practical guide to selecting and using AI models effectively with AI·Collab.
Read moreWhat “context” means on our model cards, why it matters, and how to work efficiently with long or short context windows.
Read moreGet started today. Access models from OpenAI, Google, Anthropic, Grok and more.
GDPR compliant · Zero data retention · Cancel anytime