Compact reasoning model optimized for fast, cost-efficient STEM performance.
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.
This model hasn't been benchmarked yet.
Both o4-mini 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.
o4-mini has a lower blended cost. o4-mini: $1.10 input / $4.40 output. Claude Fable 5: $10.00 input / $50.00 output.
Claude Fable 5 has a larger context window: o4-mini supports 200K tokens vs Claude Fable 5 at 1M tokens.
Yes, both o4-mini and Claude Fable 5 support vision/image input.
Key differences: o4-mini 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 o4-mini and Claude Fable 5 for free on idapt.app to see which performs better for your specific needs.