xAI's agentic build model for autonomous software engineering.
Anthropic's Mythos-class flagship for ambitious, long-running professional work.
No shared agent demos for these models yet.
No captured outputs for these models yet.
Both Grok Build 0.1 and Claude Fable 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 Fable 5: $10.00 input / $50.00 output.
Claude Fable 5 has a larger context window: Grok Build 0.1 supports 256K tokens vs Claude Fable 5 at 1M tokens.
Yes, both Grok Build 0.1 and Claude Fable 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 Fable 5 for free on idapt.app to see which performs better for your specific needs.