Is Gemma 4 31B IT or GPT-5 cheaper?

Gemma 4 31B IT is cheaper on output tokens ($0.38 vs $10.00 per 1M).

Which has the larger context window, Gemma 4 31B IT or GPT-5?

GPT-5 has the larger context window (400K tokens).

Gemma 4 31B IT vs GPT-5

Gemma 4 31B IT is cheaper on output tokens, while GPT-5 offers a larger context window. Choose Gemma 4 31B IT or GPT-5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Gemma 4 31B IT	GPT-5
Provider	FastRouter	FastRouter
Input / 1M tokens	$0.13	$1.25
Output / 1M tokens	$0.38	$10.00
Context window	262K	400K
Parameters	—	—
Open weights	Yes	No
Released	Apr 2026	Aug 2025

Gemma 4 31B IT details →GPT-5 details →

FAQ

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