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

Compare GPT-5 Pro by OpenAI against Gemini 2.5 Pro Preview 06-05 by Google AI, in 4 community votes, gpt-5 pro and gemini 2.5 pro preview 06-05 are closely matched, context windows of 400K vs 1.0M, tested across 30 shared challenges. Updated April 2026.

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

GPT-5 Pro and Gemini 2.5 Pro Preview 06-05 are closely matched based on 4 community votes. GPT-5 Pro costs $15/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05. Context windows: 400K vs 1049K tokens. Compare their real outputs side by side below.

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

GPT-5 Pro is made by openai while Gemini 2.5 Pro Preview 06-05 is from google. GPT-5 Pro has a 400K token context window compared to Gemini 2.5 Pro Preview 06-05's 1049K. On pricing, GPT-5 Pro costs $15/M input tokens vs $1.25/M for Gemini 2.5 Pro Preview 06-05. In community voting, In 4 community votes, GPT-5 Pro and Gemini 2.5 Pro Preview 06-05 are closely matched.

In 4 community votes, GPT-5 Pro and Gemini 2.5 Pro Preview 06-05 are closely matched. GPT-5 Pro and Gemini 2.5 Pro Preview 06-05 perform similarly across challenge categories. Based on blind community voting from the Rival open dataset of 4+ human preference judgments for this pair.

Web Design: GPT-5 Pro and Gemini 2.5 Pro Preview 06-05 are tied
Our Verdict
GPT-5 Pro
GPT-5 ProWinner
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05Runner-up

Votes are tied. GPT-5 Pro is newer and likely incorporates more recent improvements.

Gemini 2.5 Pro Preview 06-05 is 12x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

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

GPT-5 Pro
Gemini 2.5 Pro Preview 06-05
65%Vocabulary51%
15wSentence Length15w
0.32Hedging0.31
0.0Bold4.8
2.9Lists4.1
0.00Emoji0.00
0.00Headings0.98
0.01Transitions0.05
Based on 11 + 20 text responses
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GPT-5 ProGemini 2.5 Pro Preview 06-05

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