Aion-2.0

Aion Labs chatreasoningtool_use

API ID: aion-labs/aion-2.0-20260223

Compare Calculate
Input Price
$0.80
/1M tokens
Output Price
$1.60
/1M tokens
Cached Input
$0.20
Save 75%

About Aion-2.0

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. It also handles mature and darker themes with more nuance and depth.

💰
Price Ranking
#970 lowest price among 1240 Chat models

Model Specifications

Context Length
131k
Max Output
33k
Release Date
2026-02-23
Capabilities
chat reasoning tool_use
Input Modalities
text
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Image understanding (needs vision capability)
  • Simple Q&A (cheaper models available)

💰 Real-World Cost Examples

Estimated monthly costs for common use cases

Personal AI Assistant
$0.84
/month
50 conversations/day, ~500 tokens each
Customer Service Bot
$26.40
/month
1000 tickets/day, ~800 tokens each
Data Analysis Pipeline
$37.20
/month
500 analyses/day, ~2k tokens each
Calculate Your Custom Usage

Aion Labs Model Lineup

Compare all models from Aion Labs to find the best fit

Model Input Output Context Capabilities
Aion-2.0 Current $0.80 $1.60 131k chat reasoning tool_use
Aion-3.0-Mini $0.70 $1.40 131k chat reasoning tool_use
Aion-RP 1.0 (8B) $0.80 $1.60 33k chat
Aion-3.0 $3.00 $6.00 131k chat reasoning tool_use
View All Aion Labs Models →

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🚀 Quick Start

Get started with Aion-2.0 API

OpenAI-compatible SDK 
from openai import OpenAI

client = OpenAI(
    base_url="https://api.provider.com/v1",
    api_key="YOUR_API_KEY"
)

response = client.chat.completions.create(
    model="aion-labs/aion-2.0-20260223",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)

Resources

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