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 a…
Model details →AionLabs: Aion-2.0 vs xAI: Grok 4
xAI: Grok 4 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning ef…
Model details →Side-by-side comparison
| Capability | AionLabs: Aion-2.0 | xAI: Grok 4 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 131K | 256K | 🏆 xAI: Grok 4 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.80 | $3.00 | 🏆 AionLabs: Aion-2.0 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $1.60 | $15.00 | 🏆 AionLabs: Aion-2.0 |
| Tool / function calling First-class support for emitting structured tool calls. | — | Yes | 🏆 xAI: Grok 4 |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 xAI: Grok 4 |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is AionLabs: Aion-2.0 better than xAI: Grok 4?
xAI: Grok 4 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between AionLabs: Aion-2.0 and xAI: Grok 4?
Input: $0.80 vs $3.00 per 1M tokens. Output: $1.60 vs $15.00 per 1M tokens.
What context windows do AionLabs: Aion-2.0 and xAI: Grok 4 support?
AionLabs: Aion-2.0 supports up to 131K tokens. xAI: Grok 4 supports up to 256K tokens.
Do both AionLabs: Aion-2.0 and xAI: Grok 4 support tool calling?
AionLabs: Aion-2.0: not advertised. xAI: Grok 4: yes.
Compare AionLabs: Aion-2.0 with other models
vs AI21: Jamba Large 1.7vs AionLabs: Aion-1.0vs AionLabs: Aion-1.0-Minivs AionLabs: Aion-RP 1.0 (8B)