StepFun's flagship agentic model, a 600B-parameter MoE with 27B active.
xAI's agentic build model for autonomous software engineering.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Step 5 Preview and Grok Build 0.1 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. Step 5 Preview: $1.00 input / $2.70 output. Grok Build 0.1: $1.00 input / $2.00 output.
Step 5 Preview has a larger context window: Step 5 Preview supports 1M tokens vs Grok Build 0.1 at 256K tokens.
Yes, both Step 5 Preview and Grok Build 0.1 support vision/image input.
Step 5 Preview and Grok Build 0.1 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 Step 5 Preview and Grok Build 0.1 for free on idapt.app to see which performs better for your specific needs.