Anthropic's Mythos-class flagship for ambitious, long-running professional work.
Large 72B model from the Qwen 2.5 generation.
No shared demos for these models yet.
No captured outputs for these models yet.
Based on the Capability Index, Claude Fable 5 scores higher (91.6 vs 62.8). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Qwen2.5 72B has a lower blended cost. Claude Fable 5: $10.00 input / $50.00 output. Qwen2.5 72B: $0.36 input / $0.40 output.
Claude Fable 5 has a larger context window: Claude Fable 5 supports 1M tokens vs Qwen2.5 72B at 33K tokens.
Claude Fable 5 supports vision/image input, but Qwen2.5 72B does not.
Key differences: Claude Fable 5 has a notably higher capability index (28.8 point gap); Qwen2.5 72B is significantly cheaper; only Claude Fable 5 supports vision input; only Claude Fable 5 offers extended reasoning mode. 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 Claude Fable 5 and Qwen2.5 72B for free on idapt.app to see which performs better for your specific needs.