AionLabs' flagship reasoning model for complex tasks.
xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Aion 1.0 and Grok 4.5 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Grok 4.5 has a lower blended cost. Aion 1.0: $4.00 input / $8.00 output. Grok 4.5: $2.00 input / $6.00 output.
Grok 4.5 has a larger context window: Aion 1.0 supports 131K tokens vs Grok 4.5 at 500K tokens.
Grok 4.5 supports vision/image input, but Aion 1.0 does not.
Key differences: only Grok 4.5 supports vision input. Compare full specs on this page.
If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Aion 1.0 and Grok 4.5 for free on idapt.app to see which performs better for your specific needs.