Gemini 3 Flash Preview vs Grok 3 Mini Beta

Compare Gemini 3 Flash Preview by Google AI against Grok 3 Mini Beta by xAI, context windows of 1.0M vs 131K, tested across 13 shared challenges. Updated April 2026.

Which is better, Gemini 3 Flash Preview or Grok 3 Mini Beta?

Gemini 3 Flash Preview and Grok 3 Mini Beta are both competitive models. Gemini 3 Flash Preview costs $0.5/M input tokens vs $0.4/M for Grok 3 Mini Beta. Context windows: 1049K vs 131K tokens. Compare their real outputs side by side below.

Key Differences Between Gemini 3 Flash Preview and Grok 3 Mini Beta

Gemini 3 Flash Preview is made by google while Grok 3 Mini Beta is from xai. Gemini 3 Flash Preview has a 1049K token context window compared to Grok 3 Mini Beta's 131K. On pricing, Gemini 3 Flash Preview costs $0.5/M input tokens vs $0.4/M for Grok 3 Mini Beta.

Our Verdict
Gemini 3 Flash Preview
Gemini 3 Flash Preview
Grok 3 Mini Beta
Grok 3 Mini BetaRunner-up

No community votes yet. On paper, Gemini 3 Flash Preview has the edge — bigger model tier, newer, bigger context window.

Grok 3 Mini Beta is 3.8x cheaper per token — worth considering if cost matters.

Slight edge
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