Is GPT-4o or GPT-5.2 Codex cheaper?

GPT-4o is cheaper on output tokens ($10.00 vs $14.00 per 1M).

Which has the larger context window, GPT-4o or GPT-5.2 Codex?

GPT-5.2 Codex has the larger context window (400K tokens).

GPT-4o vs GPT-5.2 Codex

GPT-4o is cheaper on output tokens, while GPT-5.2 Codex offers a larger context window. Choose GPT-4o or GPT-5.2 Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4o	GPT-5.2 Codex
Provider	Azure	Azure
Input / 1M tokens	$2.50	$1.75
Output / 1M tokens	$10.00	$14.00
Context window	128K	400K
Parameters	—	—
Open weights	No	No
Released	May 2024	Jan 2026

GPT-4o details →GPT-5.2 Codex details →

FAQ

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