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Gemini 2.5 Pro Preview 06-05 vs GPT-5 Mini

Compare Gemini 2.5 Pro Preview 06-05 by Google AI against GPT-5 Mini by OpenAI, tested across 35 shared challenges. Updated April 2026.

Which is better, Gemini 2.5 Pro Preview 06-05 or GPT-5 Mini?

Gemini 2.5 Pro Preview 06-05 and GPT-5 Mini are both competitive models. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.

Key Differences Between Gemini 2.5 Pro Preview 06-05 and GPT-5 Mini

Gemini 2.5 Pro Preview 06-05 is made by google while GPT-5 Mini is from openai. On pricing, Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $0.25/M for GPT-5 Mini.

Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05
GPT-5 Mini
GPT-5 Mini

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

GPT-5 Mini is 5.0x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
92%

Gemini 2.5 Pro Preview 06-05 uses 482.5x more bold

Gemini 2.5 Pro Preview 06-05
GPT-5 Mini
51%Vocabulary62%
15wSentence Length21w
0.31Hedging0.16
4.8Bold0.0
4.1Lists3.4
0.00Emoji0.00
0.98Headings0.00
0.05Transitions0.05
Based on 20 + 15 text responses
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Gemini 2.5 Pro Preview 06-05GPT-5 Mini

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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