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OpenRouter

Aion-3.0 API

OpenRouter
About

Build advanced reasoning agents with Aion-3.0, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $3.00/1M input and $6.00/1M output tokens, native tool calling support. Access Aion-3.0 via the OpenRouter API with up to 33K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
131K

Tokens

Input Limit
131K

Tokens

Max Output
33K

Tokens

Pricing

Standard (per 1M tokens)

Input
$3.00
Output
$6.00

Caching (per 1M tokens)

Read
$0.75
Frequently Asked Questions

Aion-3.0 by OpenRouter costs $3.00 per 1M input tokens and $6.00 per 1M output tokens. Cached reads cost $0.75 per 1M tokens.

Model Details
ID
aion-labs/aion-3.0
Provider
OpenRouter
Family
Release Date
Jul 7, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1
Documentation