What is the difference between DeepSeek R1 0528 and GPT OSS 20B?

DeepSeek R1 0528 is developed by DeepSeek while GPT OSS 20B is developed by OpenAI. DeepSeek R1 0528 has a 164K token context window vs GPT OSS 20B's 131K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 0528 or GPT OSS 20B?

It depends on your use case. DeepSeek R1 0528 and GPT OSS 20B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does DeepSeek R1 0528 cost compared to GPT OSS 20B?

DeepSeek R1 0528 costs $0/M input tokens and GPT OSS 20B costs $0.02/M input tokens. DeepSeek R1 0528 is $0.02/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek R1 0528 and GPT OSS 20B on Rival?

This page shows a side-by-side comparison of DeepSeek R1 0528 and GPT OSS 20B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Aug 2025

DeepSeek R1 0528vsGPT OSS 20B

DeepSeek R1 0528 is cheaper than GPT OSS 20B at $0/M vs $0.02/M input tokens.

DeepSeek R1 0528 and GPT OSS 20B compared across 53 shared prompts
Spec	DeepSeek R1 0528	GPT OSS 20B
Input price	Free	$0.02/M tokens
Output price	Free	$0.1/M tokens
Context window	164K tokens	131K tokens
Parameters	671B (37B active)	21B (3.6B active)
Weights	Open	Open
Free API (OpenRouter)	No	No
Released	May 2025	Aug 2025