Auto Router

OpenRouter chatreasoning Long Free

API ID: openrouter/auto

Compare Calculate
Input Price
Free
/1M tokens
Output Price
Free
/1M tokens

About Auto Router

Auto is OpenRouter's intelligent routing model, automatically selecting the best model for each query. The router analyzes requests and routes to optimal models based on task requirements. Auto provides convenient access to diverse model capabilities through single endpoint. For developers seeking simplified model selection, Auto offers intelligent routing across OpenRouter's model catalog.

🏆
Price Ranking
#1 lowest price among 599 Chat models — Top 20% cheapest!

Model Specifications

Context Length
2.0M
Max Output
—
Release Date
2023-11-08
Capabilities
chat reasoning
Input Modalities
text
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Image understanding (needs vision capability)
  • Simple Q&A (cheaper models available)
🎉

This model is completely free!

No token costs - use it without worrying about API bills.

Estimate Token Usage

OpenRouter Model Lineup

Compare all models from OpenRouter to find the best fit

Model Input Output Context Capabilities
Auto Router Current Free Free 2.0M chat reasoning
Cinematika 7B (alpha) Free Free 8k chat
Optimus Alpha Free Free 1.0M chat vision
Quasar Alpha Free Free 1.0M chat vision
Body Builder (beta) Free Free 128k chat reasoning
Bert-Nebulon Alpha Free Free 256k chat vision reasoning
View All OpenRouter Models →

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🚀 Quick Start

Get started with Auto Router API

OpenAI-compatible SDK 
from openai import OpenAI

client = OpenAI(
    base_url="https://api.provider.com/v1",
    api_key="YOUR_API_KEY"
)

response = client.chat.completions.create(
    model="openrouter/auto",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)

Resources

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