xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Mistral's most capable model with sparse MoE architecture.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok 4.5 and Mistral Large 3 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.
Mistral Large 3 has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. Mistral Large 3: $0.50 input / $1.50 output.
Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs Mistral Large 3 at 262K tokens.
Yes, both Grok 4.5 and Mistral Large 3 support vision/image input.
Key differences: Mistral Large 3 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 Mistral Large 3 for free on idapt.app to see which performs better for your specific needs.