Gemini 2.5 Pro Preview 06-05 vs Gemini 3.1 Pro Preview
Compare Gemini 2.5 Pro Preview 06-05 and Gemini 3.1 Pro Preview, both from Google AI, context windows of 1.0M vs 1.0M, tested across 44 shared challenges. Updated May 2026.
Which is better, Gemini 2.5 Pro Preview 06-05 or Gemini 3.1 Pro Preview?
Gemini 2.5 Pro Preview 06-05 and Gemini 3.1 Pro Preview are both competitive models. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Context windows: 1049K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Gemini 2.5 Pro Preview 06-05 and Gemini 3.1 Pro Preview
Gemini 2.5 Pro Preview 06-05 is made by google while Gemini 3.1 Pro Preview is from google. Gemini 2.5 Pro Preview 06-05 has a 1049K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $2/M for Gemini 3.1 Pro Preview.
Per 1M tokens
Gemini 2.5 Pro Preview 06-05 is cheaper on both — 1.6× input, 1.2× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
Gemini 3.1 Pro Preview uses 2.8x more transitions
