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Aion 3.5

ModelActive
by AionLabs · family “aion”

Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple specialized models each... (description from the OpenRouter listing)

in: textout: textReasoningTool useStructured output
Epoch Capabilities Index
Not scored by Epoch AI
Listing ↗
Released
23 Sep 2026
Context window
262K tokens
Max output
33K tokens
Input $ / 1M tokens
$3.00
Output $ / 1M tokens
$6.00
Cached input $ / 1M
$0.75
Each benchmark shown separately with its own source

Benchmark results (0)

No benchmark results recorded for this model.

Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.

API list price over time

Price history

$ per 1M tokens

Unchanged since first recorded on 27 Sep 2026 (OpenRouter listing); re-read on every data refresh, most recently 9h ago. Steps show when the price changed.

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