Is Gemini 3.5 Flash or GPT-4o mini cheaper?

GPT-4o mini is cheaper on output tokens ($0.60 vs $9.00 per 1M).

Which has the larger context window, Gemini 3.5 Flash or GPT-4o mini?

Gemini 3.5 Flash has the larger context window (1M tokens).

Gemini 3.5 Flash vs GPT-4o mini

GPT-4o mini is cheaper on output tokens, while Gemini 3.5 Flash offers a larger context window. Choose Gemini 3.5 Flash or GPT-4o mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 3.5 Flash	GPT-4o mini
Provider	Merge Gateway	Merge Gateway
Input / 1M tokens	$1.50	$0.15
Output / 1M tokens	$9.00	$0.60
Context window	1M	128K
Parameters	—	—
Open weights	No	No
Released	May 2026	Jul 2024

Gemini 3.5 Flash details →GPT-4o mini details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.