Is OpenAI GPT OSS 120B or DeepSeek V4 Pro cheaper?

OpenAI GPT OSS 120B is cheaper on output tokens ($0.30 vs $3.30 per 1M).

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

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

OpenAI GPT OSS 120B vs DeepSeek V4 Pro

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

Spec	OpenAI GPT OSS 120B	DeepSeek V4 Pro
Provider	Venice AI	Venice AI
Input / 1M tokens	$0.07	$1.65
Output / 1M tokens	$0.30	$3.30
Context window	128K	1M
Parameters	117B	1.6T
Open weights	Yes	Yes
Released	Nov 2025	Apr 2026

OpenAI GPT OSS 120B details →DeepSeek V4 Pro details →

FAQ

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