OpenAI's budget-friendly reasoning model — fast and surprisingly capable.
Google's high-speed thinking model for agentic workflows, chat, and coding.
No shared agent demos for these models yet.
No captured outputs for these models yet.
Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 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. GPT Mini (120b): $0.04 input / $0.17 output. Gemini 3.5 Flash: $1.50 input / $9.00 output.
Gemini 3.5 Flash has a larger context window: GPT Mini (120b) supports 131K tokens vs Gemini 3.5 Flash at 1M tokens.
Gemini 3.5 Flash supports vision/image input, but GPT Mini (120b) does not.
Key differences: Gemini 3.5 Flash has a notably higher capability index (13.0 point gap); GPT Mini (120b) is significantly cheaper; only Gemini 3.5 Flash 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 GPT Mini (120b) and Gemini 3.5 Flash for free on idapt.app to see which performs better for your specific needs.