Aion-2.0
Aion LabsReleased Feb 23, 2026
Aion-2.0 is a variant of DeepSeek V3.2 optimized for immersive roleplaying and storytelling. It is particularly strong at introducing tension, crises, and conflict into stories, making narratives feel more engaging....
- Context window
- 131K tokens
- Max output
- 33K tokens
- Input
- text
- Output
- text
- Tokenizer
- Other
- Released
- Feb 23, 2026
- Reasoning
- always on
Pricing
Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.
| Per 1M tokens | Provider | + 3% fee | You pay |
|---|---|---|---|
| Input | $0.800 | $0.024 | $0.824 |
| Output | $1.60 | $0.048 | $1.65 |
| Cache read | $0.200 | $0.0060 | $0.206 |
Supported parameters
- include_reasoning
- max_tokens
- reasoning
- temperature
- top_p
Call it
OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model aion-labs/aion-2.0.
curl https://api.openkey.ai/v1/chat/completions \
-H "Authorization: Bearer $OPENKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "aion-labs/aion-2.0",
"messages": [{"role": "user", "content": "Hello"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.openkey.ai/v1",
api_key=os.environ["OPENKEY_API_KEY"],
)
completion = client.chat.completions.create(
model="aion-labs/aion-2.0",
messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openkey.ai/v1",
apiKey: process.env.OPENKEY_API_KEY,
});
const completion = await client.chat.completions.create({
model: "aion-labs/aion-2.0",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);Questions
- How much does Aion-2.0 cost via API?
- Through OpenKey, Aion-2.0 costs $0.824 per 1M input tokens and $1.65 per 1M output tokens. That is the provider price ($0.800 / $1.60) plus a flat 3% fee — nothing else.
- What is Aion-2.0's context window?
- Aion-2.0 accepts up to 131K tokens of context and returns up to 33K tokens per request.
- Is Aion-2.0 OpenAI-compatible?
- Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "aion-labs/aion-2.0" using any OpenAI SDK — only the base URL and API key change.
- What inputs does Aion-2.0 support?
- Aion-2.0 accepts text input and produces text output.
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