OpenAI's previous frontier model for complex professional workloads, built on GPT-5.4 with stronger reasoning and higher reliability.
xAI's new flagship for coding, agentic tasks, and knowledge work, succeeding Grok 4.6 with its longest reinforcement learning run yet.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.5 and Grok 4.7 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 4.7 has a lower blended cost. GPT 5.5: $5.00 input / $30.00 output. Grok 4.7: $2.00 input / $6.00 output.
GPT 5.5 has a larger context window: GPT 5.5 supports 1.1M tokens vs Grok 4.7 at 500K tokens.
Yes, both GPT 5.5 and Grok 4.7 support vision/image input.
Key differences: Grok 4.7 is significantly cheaper. 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 GPT 5.5 and Grok 4.7 for free on idapt.app to see which performs better for your specific needs.