Is Gemini 3.8 Flash or GPT-5.3 Chat cheaper?

Gemini 3.8 Flash is cheaper on output tokens ($3.75 vs $14.00 per 1M).

Which has the larger context window, Gemini 3.8 Flash or GPT-5.3 Chat?

Gemini 3.8 Flash has the larger context window (1M tokens).

Gemini 3.8 Flash vs GPT-5.3 Chat

Gemini 3.8 Flash is cheaper on output tokens, while Gemini 3.8 Flash offers a larger context window. Choose Gemini 3.8 Flash or GPT-5.3 Chat based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemini 3.8 Flash	GPT-5.3 Chat
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.75	$1.75
Output / 1M tokens	$3.75	$14.00
Context window	1M	128K
Parameters	—	—
Open weights	No	No
Released	Sep 2026	Mar 2026

Gemini 3.8 Flash details →GPT-5.3 Chat details →

FAQ

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