Is Claude 3.5 Haiku or GPT-5.2-Codex cheaper?

Claude 3.5 Haiku is cheaper on output tokens ($4.00 vs $14.00 per 1M).

Which has the larger context window, Claude 3.5 Haiku or GPT-5.2-Codex?

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

Claude 3.5 Haiku vs GPT-5.2-Codex

Claude 3.5 Haiku is cheaper on output tokens, while GPT-5.2-Codex offers a larger context window. Choose Claude 3.5 Haiku or GPT-5.2-Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude 3.5 Haiku	GPT-5.2-Codex
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.80	$1.75
Output / 1M tokens	$4.00	$14.00
Context window	200K	400K
Parameters	—	—
Open weights	No	No
Released	Nov 2024	Dec 2025

Claude 3.5 Haiku 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.