Gemini 2.5 Pro Preview 06-05 vs GPT-3.5 Turbo
Compare Gemini 2.5 Pro Preview 06-05 by Google AI against GPT-3.5 Turbo by OpenAI, context windows of 1.0M vs 16K, tested across 44 shared challenges. Updated May 2026.
Which is better, Gemini 2.5 Pro Preview 06-05 or GPT-3.5 Turbo?
Gemini 2.5 Pro Preview 06-05 and GPT-3.5 Turbo are both competitive models. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $1.5/M for GPT-3.5 Turbo. Context windows: 1049K vs 16K tokens. Compare their real outputs side by side below.
Key Differences Between Gemini 2.5 Pro Preview 06-05 and GPT-3.5 Turbo
Gemini 2.5 Pro Preview 06-05 is made by google while GPT-3.5 Turbo is from openai. Gemini 2.5 Pro Preview 06-05 has a 1049K token context window compared to GPT-3.5 Turbo's 16K. On pricing, Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens vs $1.5/M for GPT-3.5 Turbo.
Per 1M tokens
Gemini 2.5 Pro Preview 06-05 wins input (1.2× cheaper)·GPT-3.5 Turbo wins output (5.0× cheaper)
No community votes yet. On paper, Gemini 2.5 Pro Preview 06-05 has the edge — bigger model tier, newer, bigger context window.
GPT-3.5 Turbo is 5.0x cheaper per token — worth considering if cost matters.
Style Comparison
Gemini 2.5 Pro Preview 06-05 uses 482.5x more bold
