What is the difference between GPT OSS 20B and Llama 3 70B?

GPT OSS 20B is developed by OpenAI while Llama 3 70B is developed by Meta AI. GPT OSS 20B has a 131K token context window vs Llama 3 70B's 8K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT OSS 20B or Llama 3 70B?

It depends on your use case. GPT OSS 20B and Llama 3 70B 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 GPT OSS 20B cost compared to Llama 3 70B?

GPT OSS 20B costs $0.02/M input tokens and Llama 3 70B costs $0.59/M input tokens. GPT OSS 20B is $0.57/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 GPT OSS 20B and Llama 3 70B on Rival?

This page shows a side-by-side comparison of GPT OSS 20B and Llama 3 70B 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.

What is the difference between GPT OSS 20B and Llama 3 70B?

GPT OSS 20B is developed by OpenAI while Llama 3 70B is developed by Meta AI. GPT OSS 20B has a 131K token context window vs Llama 3 70B's 8K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT OSS 20B or Llama 3 70B?

It depends on your use case. GPT OSS 20B and Llama 3 70B 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 GPT OSS 20B cost compared to Llama 3 70B?

GPT OSS 20B costs $0.02/M input tokens and Llama 3 70B costs $0.59/M input tokens. GPT OSS 20B is $0.57/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 GPT OSS 20B and Llama 3 70B on Rival?

This page shows a side-by-side comparison of GPT OSS 20B and Llama 3 70B 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

GPT OSS 20BvsLlama 3 70B

GPT OSS 20B is cheaper than Llama 3 70B at $0.02/M vs $0.59/M input tokens.

GPT OSS 20B and Llama 3 70B compared across 53 shared prompts
Spec	GPT OSS 20B	Llama 3 70B
Input price	$0.02/M tokens	$0.59/M tokens
Output price	$0.1/M tokens	$0.79/M tokens
Context window	131K tokens	8K tokens
Released	Aug 2025	Apr 2024
MMLU	Matches o3-mini	82.0%

Our Verdict

GPT OSS 20B

Llama 3 70BRunner-up

Not enough votes to call it. On the specs, GPT OSS 20B has the edge: newer, bigger context window.

GPT OSS 20B costs 7.9x less per token.

Too close to call

What do GPT OSS 20B and Llama 3 70B say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT OSS 20B

Input

$0.02

29× cheaper

Output

$0.10

7.9× cheaper

Llama 3 70B

Input

$0.59

Output

$0.79

GPT OSS 20B is cheaper on both — 29× input, 7.9× output

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Updated Aug 2025

GPT OSS 20BvsLlama 3 70B

GPT OSS 20B is cheaper than Llama 3 70B at $0.02/M vs $0.59/M input tokens.

GPT OSS 20B and Llama 3 70B compared across 53 shared prompts
Spec	GPT OSS 20B	Llama 3 70B
Input price	$0.02/M tokens	$0.59/M tokens
Output price	$0.1/M tokens	$0.79/M tokens
Context window	131K tokens	8K tokens
Released	Aug 2025	Apr 2024
MMLU	Matches o3-mini	82.0%