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GPT OSS 120B vs Qwen3 30B A3B

Compare GPT OSS 120B by OpenAI against Qwen3 30B A3B by Qwen, in 38 community votes, gpt oss 120b wins 93% of head-to-head duels, context windows of 131K vs 41K, tested across 49 shared challenges. Updated April 2026.

Which is better, GPT OSS 120B or Qwen3 30B A3B?

GPT OSS 120B is the better choice overall, winning 93% of 38 blind community votes on Rival. GPT OSS 120B costs $0.18/M input tokens vs $0/M for Qwen3 30B A3B. Context windows: 131K vs 41K tokens. Compare their real outputs side by side below.

Key Differences Between GPT OSS 120B and Qwen3 30B A3B

GPT OSS 120B is made by openai while Qwen3 30B A3B is from qwen. GPT OSS 120B has a 131K token context window compared to Qwen3 30B A3B's 41K. On pricing, GPT OSS 120B costs $0.18/M input tokens vs $0/M for Qwen3 30B A3B. In community voting, In 38 community votes, GPT OSS 120B wins 93% of head-to-head duels.

In 38 community votes, GPT OSS 120B wins 93% of head-to-head duels. GPT OSS 120B leads in Image Generation, Web Design, Reasoning. Based on blind community voting from the Rival open dataset of 38+ human preference judgments for this pair.

Image Generation: GPT OSS 120B wins 85% of votes
Web Design: GPT OSS 120B wins 100% of votes
Reasoning: GPT OSS 120B wins 100% of votes
Conversation: GPT OSS 120B wins 100% of votes
Our Verdict
GPT OSS 120B
GPT OSS 120BWinner
Qwen3 30B A3B
Qwen3 30B A3BRunner-up

Pick GPT OSS 120B. In 38 blind votes, GPT OSS 120B wins 93% of the time. That's not luck.

GPT OSS 120B particularly excels in Web Design, Reasoning, Conversation.

Clear winner
Writing DNA

Style Comparison

Similarity
96%

GPT OSS 120B uses 73.3x more headings

GPT OSS 120B
Qwen3 30B A3B
52%Vocabulary60%
19wSentence Length11w
0.28Hedging0.24
7.4Bold7.6
1.8Lists4.6
0.15Emoji0.36
0.73Headings0.00
0.17Transitions0.06
Based on 21 + 4 text responses
vs

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GPT OSS 120BQwen3 30B A3B

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
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