Is Claude-Haiku-3.5 or GPT-5.1-Codex-Max cheaper?

Claude-Haiku-3.5 is cheaper on output tokens ($3.40 vs $9.00 per 1M).

Which has the larger context window, Claude-Haiku-3.5 or GPT-5.1-Codex-Max?

GPT-5.1-Codex-Max has the larger context window (400K tokens).

Claude-Haiku-3.5 vs GPT-5.1-Codex-Max

Claude-Haiku-3.5 is cheaper on output tokens, while GPT-5.1-Codex-Max offers a larger context window. Choose Claude-Haiku-3.5 or GPT-5.1-Codex-Max based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude-Haiku-3.5	GPT-5.1-Codex-Max
Provider	Poe	Poe
Input / 1M tokens	$0.68	$1.10
Output / 1M tokens	$3.40	$9.00
Context window	189K	400K
Parameters	—	—
Open weights	No	No
Released	Oct 2024	Dec 2025

Claude-Haiku-3.5 details →GPT-5.1-Codex-Max details →

FAQ

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