aion-labs

AionLabs: Aion-2.0

AionLabs’ Aion-2.0 is designed for text-based tasks with a substantial context length of 131,072 tokens and supports both reasoning and tools integration. This model can process extensive inputs while enabling detailed responses through its capacity to generate up to 32,768 completion tokens. Given its moderate pricing at $0.8 per million input tokens and $1.6 per million output tokens, Aion-2.0 is a viable option for projects requiring robust text processing capabilities. However, due to the absence of independent benchmark coverage, users should consider this model as part of a broader evaluation process; without benchmark scores, its performance relative to competitors remains unproven.

Quality Score
90/100
price + capability + benchmarks
Input Price
$0.80
per 1M tokens
Output Price
$1.60
per 1M tokens
Context Window
131,072
tokens
Model ID
aion-labs/aion-2.0
Vendor
aion-labs
Released
February 2026
Tokenizer
Other
Input Modalities
text
Output Modalities
text
Max Output
32,768 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
text only
Audio
no
Moderated
no

What it costs in practice

Computed from the current $0.80/M input and $1.60/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.03
Classify 1,000 customer emails 500k in / 50k out $0.48
A month of a busy support chatbot 5M in / 2M out $7.20

Similar models

Quick answers

How much does AionLabs: Aion-2.0 cost?
$0.80 per million input tokens and $1.60 per million output tokens.
What is AionLabs: Aion-2.0's context window?
131,072 tokens, roughly 196 pages of text in a single request.
Does AionLabs: Aion-2.0 support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can AionLabs: Aion-2.0 process images?
No, it is text-only on the input side.