Aion 3.5
Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models.
Model by AionLabs
Chalk Labs
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Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "aion-labs/aion-3.5",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: writing-editing, model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $3 | $6 | $0.75 |
Price as of Oct 26, 2026 from OpenRouter. Prices change often; check before you rely on one.
- Provider
- AionLabs
- Model id
aion-labs/aion-3.5- Context window
- 262,144 tokens (262K)
- Max output
- 32,768 tokens
- Input
- text
- Output
- text
- Tool calling
- Yes
- Structured outputs
- Not listed
- Reasoning
- Yes
- Weights
- Closed
- Released
- Sep 23, 2026
Details
- Auth
- API key
- License
- Proprietary
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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- 0.582score
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Cite this page
Aion 3.5: price, context window, tool use. Agent Mart. https://agentmart.dev/models/aion-labs-aion-3-5 (last updated 2026-10-26)