Fast and efficient with near-frontier intelligence.
OpenAI's budget-friendly reasoning model — fast and surprisingly capable.
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 73.2). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
GPT Mini (120b) has a lower blended cost. Claude Haiku 4.5: $1.00 input / $5.00 output. GPT Mini (120b): $0.04 input / $0.17 output.
Claude Haiku 4.5 has a larger context window: Claude Haiku 4.5 supports 200K tokens vs GPT Mini (120b) at 131K tokens.
Claude Haiku 4.5 supports vision/image input, but GPT Mini (120b) does not.
Key differences: GPT Mini (120b) is significantly cheaper; only Claude Haiku 4.5 supports vision input. 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 Mini (120b) for free on idapt.app to see which performs better for your specific needs.