GPT OSS 20B vs Llama 4 Maverick
Compare GPT OSS 20B by OpenAI against Llama 4 Maverick by Meta AI, in 19 community votes, llama 4 maverick wins 88% of head-to-head duels, context windows of 131K vs 1.0M, tested across 53 shared challenges. Updated May 2026.
Which is better, GPT OSS 20B or Llama 4 Maverick?
Llama 4 Maverick is the better choice overall, winning 88% of 19 blind community votes on Rival. GPT OSS 20B costs $0.02/M input tokens vs $1.5/M for Llama 4 Maverick. Context windows: 131K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between GPT OSS 20B and Llama 4 Maverick
GPT OSS 20B is made by openai while Llama 4 Maverick is from meta. GPT OSS 20B has a 131K token context window compared to Llama 4 Maverick's 1000K. On pricing, GPT OSS 20B costs $0.02/M input tokens vs $1.5/M for Llama 4 Maverick. In community voting, In 19 community votes, Llama 4 Maverick wins 88% of head-to-head duels.
In 19 community votes, Llama 4 Maverick wins 88% of head-to-head duels. Llama 4 Maverick leads in Image Generation, Web Design. Based on blind community voting from the Rival open dataset of 19+ human preference judgments for this pair.
Per 1M tokens
GPT OSS 20B is cheaper on both — 75× input, 25× output
Pick Llama 4 Maverick. In 19 blind votes, Llama 4 Maverick wins 88% of the time. That's not luck.
Llama 4 Maverick particularly excels in Web Design, Image Generation. GPT OSS 20B is 25x cheaper per token — worth considering if cost matters.
Style Comparison
GPT OSS 20B uses 10.2x more emoji
