Is GPT OSS 120B or GPT-5.6 Sol cheaper?

GPT OSS 120B is cheaper on output tokens ($4.88 vs $30.00 per 1M).

Which has the larger context window, GPT OSS 120B or GPT-5.6 Sol?

GPT-5.6 Sol has the larger context window (1M tokens).

GPT OSS 120B vs GPT-5.6 Sol

GPT OSS 120B is cheaper on output tokens, while GPT-5.6 Sol offers a larger context window. Choose GPT OSS 120B or GPT-5.6 Sol based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT OSS 120B	GPT-5.6 Sol
Provider	Opper	Opper
Input / 1M tokens	$1.16	$5.00
Output / 1M tokens	$4.88	$30.00
Context window	128K	1M
Parameters	—	—
Open weights	Yes	No
Released	Aug 2025	Jul 2026

GPT OSS 120B details →GPT-5.6 Sol details →

FAQ

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