Aion-3.0 overview
Aion-3.0 by AionLabs
Tuned for narrative depth: strong structure, tension, and character consistency across long-form fiction and roleplay.
Aion-3.0 specs
- Model ID
aion-labs/aion-3.0- Developer
- AionLabs
- Context window
- 131,072 tokens
- Max output
- 32,768 tokens
- Input
- Image, Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
What Is Aion-3.0 API?
Aion-3.0 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 contribute to a response, with an emphasis on narrative structure and tension.
Technical Reference
| Developer | AionLabs |
|---|---|
| Model ID | aion-labs/aion-3.0 |
| Release Date | July 6, 2026 |
| Context Window | 131,072 tokens (~131K) |
| Max Output Tokens | 32,768 tokens |
| Modalities | Image, Text → Text |
| Capabilities | file input, parallel tool calls, reasoning, streaming, structured (JSON schema) output, tool/function calling, vision, web search |
What Aion-3.0 Brings to the Table
Model identity
The exact model id is aion-labs/aion-3.0, and it is presented as Aion-3.0 from AionLabs.
Architecture description
Public listings describe it as a multi-model collaborative generation system rather than a single model response generator.
Family
It is described as being built on the GLM family of models.
Supported features
Public listings for this model mention reasoning and tool use/function calling support.
Where Aion-3.0 Makes the Most Sense
Roleplaying
The model is described as being tuned for roleplaying-style generation.
Storytelling
The model is described as being tuned for storytelling and narrative-focused output.
Creative writing
Its collaborative generation design is presented as useful for producing stronger narrative structure.
Aion-3.0 vs the Alternatives
Aion-3.0 Mini
AionLabs also lists Aion-3.0 Mini as a related model, described as using the DeepSeek family instead of GLM.
Sources: https://developer.puter.com/ai/aion-labs/aion-3.0/ · https://www.aionlabs.ai/ · https://venice.ai/models/aion-labs-aion-3-0
Use cases
Aion-3.0 is documented as suited to interactive fiction, character-driven chat, and other creative-writing tools where narrative depth and thematic nuance matter more than raw speed. It is also described as a good fit for roleplaying and storytelling use, with stronger narrative structure, tension, and conflict in mature or darker themes.
It is suitable for collaborative storytelling and creative writing assistance, especially when building long-form narratives or scenes that depend on subtext and emotional turns. It is also positioned for interactive roleplaying scenarios with consistent character personas and extended-session memory for plot and detail continuity.
Capabilities
- File input
- Reasoning
- Streaming
- Vision
- Web search
Aion-3.0 API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $3.17 | 1M tokens |
| Output | $6.35 | 1M tokens |
| Cached input | $0.7935 | 1M tokens |
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Aion-3.0 vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
| Aion-3.0 | $3.17 | $6.35 |
| Aion-3.5-Mini | $0.7406 | $1.48 |
| Aion-3.0-Mini | $0.7406 | $1.48 |
| Aion-2.0 | $0.8464 | $1.69 |
| Aion-3.5 | $3.17 | $6.35 |
How to use the Aion-3.0 API
View docs
Build with your agent
Give your agent the model details, code and documentation.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v1/chat/completions' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "aion-labs/aion-3.0",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "aion-labs/aion-3.0",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}
response = requests.post("https://api.aimlapi.com/v1/chat/completions", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v1/chat/completions", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "aion-labs/aion-3.0",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());Models similar to Aion-3.0
Aion-3.0 FAQ
What is the context window of Aion-3.0?
Aion-3.0 has a 131,072 tokens context window and can return up to 32,768 tokens.
What inputs and outputs does Aion-3.0 support?
Aion-3.0 takes image, text as input and returns text.
What is the model ID for Aion-3.0?
Use aion-labs/aion-3.0 as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
When was Aion-3.0 released?
Aion-3.0 became available on July 7, 2026.
How much does Aion-3.0 cost?
Aion-3.0 costs $3.17 input and $6.35 output per 1M tokens on AI/ML API, billed as you go with no subscription.
Does Aion-3.0 support streaming?
Yes, Aion-3.0 can stream responses as they are generated.
Can Aion-3.0 read images?
Yes, Aion-3.0 accepts image input alongside text.
Can Aion-3.0 call external tools or functions?
Yes, it supports tool use, including parallel tool calls.
Does Aion-3.0 support web search?
Yes, web search is listed among its features and capabilities.