Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. It includes built-in "thinking" capabilities, enabling it to provide responses with grea…
Model details →Google: Gemini 2.5 Flash vs OpenAI: GPT-4o-mini
Google: Gemini 2.5 Flash and OpenAI: GPT-4o-mini are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable than other recent frontier mo…
Model details →Side-by-side comparison
| Capability | Google: Gemini 2.5 Flash | OpenAI: GPT-4o-mini | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 128K | 🏆 Google: Gemini 2.5 Flash |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.30 | $0.15 | 🏆 OpenAI: GPT-4o-mini |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $2.50 | $0.60 | 🏆 OpenAI: GPT-4o-mini |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | — | 🏆 Google: Gemini 2.5 Flash |
Frequently asked questions
Is Google: Gemini 2.5 Flash better than OpenAI: GPT-4o-mini?
Google: Gemini 2.5 Flash and OpenAI: GPT-4o-mini are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Google: Gemini 2.5 Flash and OpenAI: GPT-4o-mini?
Input: $0.30 vs $0.15 per 1M tokens. Output: $2.50 vs $0.60 per 1M tokens.
What context windows do Google: Gemini 2.5 Flash and OpenAI: GPT-4o-mini support?
Google: Gemini 2.5 Flash supports up to 1.0M tokens. OpenAI: GPT-4o-mini supports up to 128K tokens.
Do both Google: Gemini 2.5 Flash and OpenAI: GPT-4o-mini support tool calling?
Google: Gemini 2.5 Flash: yes. OpenAI: GPT-4o-mini: yes.