Is GPT OSS 20B or DeepSeek-V3 cheaper?

GPT OSS 20B is cheaper on output tokens ($0.20 vs $1.25 per 1M).

Which has the larger context window, GPT OSS 20B or DeepSeek-V3?

Both models offer a similar context window.

GPT OSS 20B vs DeepSeek-V3

GPT OSS 20B is cheaper on output tokens. Choose GPT OSS 20B or DeepSeek-V3 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT OSS 20B	DeepSeek-V3
Provider	Together AI	Together AI
Input / 1M tokens	$0.05	$1.25
Output / 1M tokens	$0.20	$1.25
Context window	131K	131K
Parameters	21B	671B
Open weights	Yes	Yes
Released	Aug 2025	Dec 2024

GPT OSS 20B details →DeepSeek-V3 details →

FAQ

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