Is GPT-4.1 mini or gpt-oss-20b cheaper?

gpt-oss-20b is cheaper on output tokens ($0.14 vs $1.60 per 1M).

Which has the larger context window, GPT-4.1 mini or gpt-oss-20b?

GPT-4.1 mini has the larger context window (1M tokens).

GPT-4.1 mini vs gpt-oss-20b

gpt-oss-20b is cheaper on output tokens, while GPT-4.1 mini offers a larger context window. Choose GPT-4.1 mini or gpt-oss-20b based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4.1 mini	gpt-oss-20b
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$0.40	$0.03
Output / 1M tokens	$1.60	$0.14
Context window	1M	131K
Parameters	—	21B
Open weights	No	Yes
Released	Apr 2025	Aug 2025

GPT-4.1 mini details →gpt-oss-20b details →

FAQ

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