xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Amazon's previous flagship Nova model with multimodal capabilities.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok 4.5 and Nova Pro 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.
Nova Pro has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. Nova Pro: $0.80 input / $3.20 output.
Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs Nova Pro at 300K tokens.
Yes, both Grok 4.5 and Nova Pro support vision/image input.
Key differences: Nova Pro is significantly cheaper; only Grok 4.5 offers extended reasoning mode. 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 Grok 4.5 and Nova Pro for free on idapt.app to see which performs better for your specific needs.
