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GPT-4.1 Mini vs Gemini 2.5 Pro Preview 06-05

Compare GPT-4.1 Mini by OpenAI against Gemini 2.5 Pro Preview 06-05 by Google AI, context windows of 1.0M vs 1.0M, tested across 38 shared challenges. Updated April 2026.

Which is better, GPT-4.1 Mini or Gemini 2.5 Pro Preview 06-05?

GPT-4.1 Mini and Gemini 2.5 Pro Preview 06-05 are both competitive models. GPT-4.1 Mini costs $0.4/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05. Context windows: 1048K vs 1049K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-4.1 Mini and Gemini 2.5 Pro Preview 06-05

GPT-4.1 Mini is made by openai while Gemini 2.5 Pro Preview 06-05 is from google. GPT-4.1 Mini has a 1048K token context window compared to Gemini 2.5 Pro Preview 06-05's 1049K. On pricing, GPT-4.1 Mini costs $0.4/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05.

Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05
GPT-4.1 Mini
GPT-4.1 MiniRunner-up

No community votes yet. On paper, Gemini 2.5 Pro Preview 06-05 has the edge — bigger model tier, newer.

GPT-4.1 Mini is 6.3x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
93%

GPT-4.1 Mini uses 3.3x more transitions

GPT-4.1 Mini
Gemini 2.5 Pro Preview 06-05
59%Vocabulary51%
19wSentence Length15w
0.46Hedging0.31
4.7Bold4.8
4.9Lists4.1
0.00Emoji0.00
0.76Headings0.98
0.17Transitions0.05
Based on 23 + 20 text responses
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GPT-4.1 MiniGemini 2.5 Pro Preview 06-05

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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