xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Cohere's mid-tier retrieval-optimized model from August 2024.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok 4.5 and Command R (Aug 2024) 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.
Command R (Aug 2024) has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. Command R (Aug 2024): $0.15 input / $0.60 output.
Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs Command R (Aug 2024) at 128K tokens.
Grok 4.5 supports vision/image input, but Command R (Aug 2024) does not.
Key differences: Command R (Aug 2024) 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 Command R (Aug 2024) for free on idapt.app to see which performs better for your specific needs.