Grok 3 Mini Beta vs GPT OSS 120B
Compare Grok 3 Mini Beta by xAI against GPT OSS 120B by OpenAI, context windows of 131K vs 131K, tested across 8 shared challenges. Updated April 2026.
Which is better, Grok 3 Mini Beta or GPT OSS 120B?
Grok 3 Mini Beta and GPT OSS 120B are both competitive models. Grok 3 Mini Beta costs $0.4/M input tokens vs $0.18/M for GPT OSS 120B. Context windows: 131K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Mini Beta and GPT OSS 120B
Grok 3 Mini Beta is made by xai while GPT OSS 120B is from openai. Grok 3 Mini Beta has a 131K token context window compared to GPT OSS 120B's 131K. On pricing, Grok 3 Mini Beta costs $0.4/M input tokens vs $0.18/M for GPT OSS 120B.
Our Verdict
GPT OSS 120B
Grok 3 Mini BetaRunner-up
No community votes yet. On paper, GPT OSS 120B has the edge — bigger model tier, newer.
Too close to call
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