Is DeepSeek V4 Pro or GPT OSS 120B cheaper?

GPT OSS 120B is cheaper on output tokens ($0.15 vs $0.87 per 1M).

Which has the larger context window, DeepSeek V4 Pro or GPT OSS 120B?

DeepSeek V4 Pro has the larger context window (1M tokens).

DeepSeek V4 Pro vs GPT OSS 120B

GPT OSS 120B is cheaper on output tokens, while DeepSeek V4 Pro offers a larger context window. Choose DeepSeek V4 Pro or GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Pro	GPT OSS 120B
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$0.44	$0.03
Output / 1M tokens	$0.87	$0.15
Context window	1M	131K
Parameters	1.6T	117B
Open weights	Yes	Yes
Released	Apr 2026	Aug 2025

DeepSeek V4 Pro details →GPT OSS 120B details →

FAQ

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