xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Amazon's ultra-fast text-only model for low-latency tasks.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok 4.5 and Nova Micro 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 Micro has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. Nova Micro: $0.04 input / $0.14 output.
Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs Nova Micro at 128K tokens.
Grok 4.5 supports vision/image input, but Nova Micro does not.
Key differences: Nova Micro is significantly cheaper; only Grok 4.5 supports vision input; 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 Micro for free on idapt.app to see which performs better for your specific needs.
