Is deepseek-ai/DeepSeek-V3.1 or openai/gpt-oss-20b cheaper?

openai/gpt-oss-20b is cheaper on output tokens ($0.18 vs $1.00 per 1M).

Which has the larger context window, deepseek-ai/DeepSeek-V3.1 or openai/gpt-oss-20b?

deepseek-ai/DeepSeek-V3.1 has the larger context window (164K tokens).

deepseek-ai/DeepSeek-V3.1 vs openai/gpt-oss-20b

openai/gpt-oss-20b is cheaper on output tokens, while deepseek-ai/DeepSeek-V3.1 offers a larger context window. Choose deepseek-ai/DeepSeek-V3.1 or openai/gpt-oss-20b based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	deepseek-ai/DeepSeek-V3.1	openai/gpt-oss-20b
Provider	SiliconFlow	SiliconFlow
Input / 1M tokens	$0.27	$0.04
Output / 1M tokens	$1.00	$0.18
Context window	164K	131K
Parameters	—	21B
Open weights	No	No
Released	Aug 2025	Aug 2025

deepseek-ai/DeepSeek-V3.1 details →openai/gpt-oss-20b details →

FAQ

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