Model comparison
Aion-2.0 vs o3
Capability radar, value bars, and side-by-side posture.
Aion-2.0
Not scored
value score
o3
93
value score
Aion-2.0 ctx
—
o3 ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- o393
Attribute tape
| Field | Aion-2.0 | o3 |
|---|---|---|
| Developer | Aion Labs | OpenAI |
| Context | — | 200K |
| Modalities | Text, Code | |
| Openness | — | Proprietary Model |
| Speed | — | — |
| Price | — | $10/1M in · $40/1M out |
| Value score | — | 93 |
| Summary | Aion-2.0 is a large language model fine-tuned from DeepSeek V3 and optimized for immersive roleplay, storytelling, and creative writing. It features proactive narrative behavior—injecting dramatic tension, conflict, and character depth—with a 131K-token context window and 32K output cap. | OpenAI reasoning model focused on hard problems. |