GPT-5 vs Grok 3 Mini Beta
Compare GPT-5 by OpenAI against Grok 3 Mini Beta by xAI, context windows of 400K vs 131K, tested across 13 shared challenges. Updated May 2026.
Which is better, GPT-5 or Grok 3 Mini Beta?
GPT-5 and Grok 3 Mini Beta are both competitive models. GPT-5 costs $1.25/M input tokens vs $0.4/M for Grok 3 Mini Beta. Context windows: 400K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5 and Grok 3 Mini Beta
GPT-5 is made by openai while Grok 3 Mini Beta is from xai. GPT-5 has a 400K token context window compared to Grok 3 Mini Beta's 131K. On pricing, GPT-5 costs $1.25/M input tokens vs $0.4/M for Grok 3 Mini Beta.
Per 1M tokens
Grok 3 Mini Beta is cheaper on both — 3.1× input, 13× output
No community votes yet. On paper, GPT-5 has the edge — bigger model tier, newer, bigger context window.
Grok 3 Mini Beta is 13x cheaper per token — worth considering if cost matters.
