Fast and efficient with near-frontier intelligence.
OpenAI's most advanced small model — fast and affordable.
No shared demos for these models yet.
No captured outputs for these models yet.
Based on the Capability Index, Claude Haiku 4.5 scores higher (75.3 vs 60.8). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
GPT 4o Mini has a lower blended cost. Claude Haiku 4.5: $1.00 input / $5.00 output. GPT 4o Mini: $0.15 input / $0.60 output.
Claude Haiku 4.5 has a larger context window: Claude Haiku 4.5 supports 200K tokens vs GPT 4o Mini at 128K tokens.
Yes, both Claude Haiku 4.5 and GPT 4o Mini support vision/image input.
Key differences: Claude Haiku 4.5 has a notably higher capability index (14.5 point gap); GPT 4o Mini is significantly cheaper; only Claude Haiku 4.5 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 Haiku 4.5 and GPT 4o Mini for free on idapt.app to see which performs better for your specific needs.