Is GPT-5.2 Codex or Gemini 2.5 Flash cheaper?

Gemini 2.5 Flash is cheaper on output tokens ($0.71 vs $1.14 per 1M).

Which has the larger context window, GPT-5.2 Codex or Gemini 2.5 Flash?

Gemini 2.5 Flash has the larger context window (1M tokens).

GPT-5.2 Codex vs Gemini 2.5 Flash

Gemini 2.5 Flash is cheaper on output tokens, while Gemini 2.5 Flash offers a larger context window. Choose GPT-5.2 Codex or Gemini 2.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.2 Codex	Gemini 2.5 Flash
Provider	QiHang	QiHang
Input / 1M tokens	$0.14	$0.09
Output / 1M tokens	$1.14	$0.71
Context window	400K	1M
Parameters	—	—
Open weights	No	No
Released	Dec 2025	Dec 2025

GPT-5.2 Codex details →Gemini 2.5 Flash details →

FAQ

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