xAI's newest flagship model with industry-leading speed and agentic tool calling.
OpenAI's GPT-6.1 Sol served in pro reasoning mode for the hardest problems.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok 4.20 and GPT 6.1 Sol 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.
Grok 4.20 has a lower blended cost. Grok 4.20: $1.25 input / $2.50 output. GPT 6.1 Sol Pro: $2.00 input / $10.00 output.
Grok 4.20 has a larger context window: Grok 4.20 supports 2M tokens vs GPT 6.1 Sol Pro at 1.1M tokens.
Yes, both Grok 4.20 and GPT 6.1 Sol Pro support vision/image input.
Grok 4.20 and GPT 6.1 Sol Pro have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.
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 4.20 and GPT 6.1 Sol Pro for free on idapt.app to see which performs better for your specific needs.