xAI's agentic build model for autonomous software engineering.
Anthropic's new flagship for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Grok Build 0.1 and Claude Opus 5.5 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 Build 0.1 has a lower blended cost. Grok Build 0.1: $1.00 input / $2.00 output. Claude Opus 5.5: $4.00 input / $20.00 output.
Claude Opus 5.5 has a larger context window: Grok Build 0.1 supports 256K tokens vs Claude Opus 5.5 at 1M tokens.
Yes, both Grok Build 0.1 and Claude Opus 5.5 support vision/image input.
Key differences: Grok Build 0.1 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 Grok Build 0.1 and Claude Opus 5.5 for free on idapt.app to see which performs better for your specific needs.