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....
Model details →AionLabs: Aion-2.0 vs OpenAI: GPT-5.2-Codex
AionLabs: Aion-2.0 and OpenAI: GPT-5.2-Codex are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Model details →Side-by-side comparison
| Capability | AionLabs: Aion-2.0 | OpenAI: GPT-5.2-Codex | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 131K | 400K | 🏆 OpenAI: GPT-5.2-Codex |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.80 | $1.75 | 🏆 AionLabs: Aion-2.0 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.60 | $14.00 | 🏆 AionLabs: Aion-2.0 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 OpenAI: GPT-5.2-Codex |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is AionLabs: Aion-2.0 better than OpenAI: GPT-5.2-Codex?
AionLabs: Aion-2.0 and OpenAI: GPT-5.2-Codex are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between AionLabs: Aion-2.0 and OpenAI: GPT-5.2-Codex?
Input: $0.80 vs $1.75 per 1M tokens. Output: $1.60 vs $14.00 per 1M tokens.
What context windows do AionLabs: Aion-2.0 and OpenAI: GPT-5.2-Codex support?
AionLabs: Aion-2.0 supports up to 131K tokens. OpenAI: GPT-5.2-Codex supports up to 400K tokens.
Do both AionLabs: Aion-2.0 and OpenAI: GPT-5.2-Codex support tool calling?
AionLabs: Aion-2.0: yes. OpenAI: GPT-5.2-Codex: yes.