Rival
Sign Up

GPT OSS 20B vs Llama 4 Scout

Compare GPT OSS 20B by OpenAI against Llama 4 Scout by Meta AI, in 16 community votes, gpt oss 20b wins 57% of head-to-head duels, context windows of 131K vs 10.0M, tested across 53 shared challenges. Updated April 2026.

Which is better, GPT OSS 20B or Llama 4 Scout?

GPT OSS 20B is the better choice overall, winning 57% of 16 blind community votes on Rival. GPT OSS 20B costs $0.02/M input tokens vs $0.25/M for Llama 4 Scout. Context windows: 131K vs 10000K tokens. Compare their real outputs side by side below.

Key Differences Between GPT OSS 20B and Llama 4 Scout

GPT OSS 20B is made by openai while Llama 4 Scout is from meta. GPT OSS 20B has a 131K token context window compared to Llama 4 Scout's 10000K. On pricing, GPT OSS 20B costs $0.02/M input tokens vs $0.25/M for Llama 4 Scout. In community voting, In 16 community votes, GPT OSS 20B wins 57% of head-to-head duels.

In 16 community votes, GPT OSS 20B wins 57% of head-to-head duels. GPT OSS 20B leads in Image Generation, while Llama 4 Scout leads in Web Design. Based on blind community voting from the Rival open dataset of 16+ human preference judgments for this pair.

Web Design: Llama 4 Scout wins 63% of votes
Image Generation: GPT OSS 20B wins 83% of votes
Our Verdict
GPT OSS 20B
GPT OSS 20BWinner
Llama 4 Scout
Llama 4 ScoutRunner-up

GPT OSS 20B has the edge overall. In 16 blind votes, GPT OSS 20B wins 57% of the time.

Pick GPT OSS 20B for Image Generation. Pick Llama 4 Scout for Web Design. GPT OSS 20B is 5.0x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
100%

GPT OSS 20B uses 10.2x more emoji

GPT OSS 20B
Llama 4 Scout
54%Vocabulary43%
17wSentence Length42w
0.26Hedging0.81
5.9Bold4.1
3.3Lists7.3
0.10Emoji0.00
0.75Headings0.30
0.32Transitions0.04
Based on 21 + 10 text responses
vs

Ask them anything yourself

GPT OSS 20BLlama 4 Scout

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
Download the free previewor get all 58 slides for $49
FAQ

Common questions

Keep going
Llama 4 Scout logoMiniMax M2.5 logo
Llama 4 Scout vs MiniMax M2.5New provider
Llama 4 Scout logoPony Alpha logo
Llama 4 Scout vs Pony AlphaNew provider
GPT OSS 20B logoLlama 4 Maverick logo
GPT OSS 20B vs Llama 4 MaverickCross-provider