Gemini 1.5 Pro vs Gemini 2.5 Flash Preview 05-20
Compare Gemini 1.5 Pro and Gemini 2.5 Flash Preview 05-20, both from Google AI, context windows of 1.0M vs 1.0M, tested across 1 shared challenge. Updated February 2026.
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Gemini 1.5 ProvsGemini 2.5 Flash Preview 05-20
1 challenges
Why Gemini 1.5 Pro?
No standout advantages
Why Gemini 2.5 Flash Preview 05-20?
18.3x cheaper overall$0.15/M in · $0.60/M out
15 months newerMay 2025
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Interactive Catan Boardweb design
Tests an AI's ability to create interactive web elements
Gemini 2.5 Flash Preview 05-20
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