Is GPT OSS 20B or Gemini 3.1 Flash Lite Preview cheaper?

GPT OSS 20B is cheaper on output tokens ($0.20 vs $1.50 per 1M).

Which has the larger context window, GPT OSS 20B or Gemini 3.1 Flash Lite Preview?

Gemini 3.1 Flash Lite Preview has the larger context window (1M tokens).

GPT OSS 20B vs Gemini 3.1 Flash Lite Preview

GPT OSS 20B is cheaper on output tokens, while Gemini 3.1 Flash Lite Preview offers a larger context window. Choose GPT OSS 20B or Gemini 3.1 Flash Lite Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT OSS 20B	Gemini 3.1 Flash Lite Preview
Provider	Neon	Neon
Input / 1M tokens	$0.05	$0.25
Output / 1M tokens	$0.20	$1.50
Context window	131K	1M
Parameters	21B	—
Open weights	Yes	No
Released	Aug 2025	Mar 2026

GPT OSS 20B details →Gemini 3.1 Flash Lite Preview details →

FAQ

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