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AionLabs: Aion 3.5

aion-labs/aion-3.5

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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...

Modalities

TextText

In / out price

$3 / $6 per 1M

Context

262K

Released

Sep 23, 2026

Why use Aion 3.5

  • Step-by-step reasoning mode
  • Tool and function calling (agent-ready)
  • Structured (JSON) outputs

Pricing

Input$3 / 1M tokens
Output$6 / 1M tokens
Cached input (read)$0.75 / 1M tokens

List prices via OpenRouter, checked daily. Real cost depends on the provider and on reasoning tokens.

Cost calculator

Pick a task, set how often you run it, and compare what it costs on each model.

ModelPer runPer monthPer 1,000 runs
AionLabs: Aion 3.5$0.014$14.40$14.40

Estimates from list prices via OpenRouter; real bills vary by provider and reasoning tokens.

Will it fit? Context window simulator

Each square is about one page (500 words). Colored squares are your content; grey squares are free space in the model's context window.

Your content

  • Novel (90,000 words)

Total: about 120,000 tokens (≈ 90,226 words). Token counts are estimates.

Models

AionLabs: Aion 3.5

262,144 tokens ≈ 395 pages

Fits: uses 46% of the window (room for 2× this much).

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