Gemini 2.0 Flash Thinking vs o3 Mini
Compare Gemini 2.0 Flash Thinking by Google AI against o3 Mini by OpenAI, context windows of 500K vs 64K, tested across 21 shared challenges. Updated April 2026.
Which is better, Gemini 2.0 Flash Thinking or o3 Mini?
Gemini 2.0 Flash Thinking and o3 Mini are both competitive models. Gemini 2.0 Flash Thinking costs $0.25/M input tokens vs $1.1/M for o3 Mini. Context windows: 500K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between Gemini 2.0 Flash Thinking and o3 Mini
Gemini 2.0 Flash Thinking is made by google while o3 Mini is from openai. Gemini 2.0 Flash Thinking has a 500K token context window compared to o3 Mini's 64K. On pricing, Gemini 2.0 Flash Thinking costs $0.25/M input tokens vs $1.1/M for o3 Mini.
No community votes yet. On paper, Gemini 2.0 Flash Thinking has the edge — bigger model tier, bigger context window.
Gemini 2.0 Flash Thinking is 8.8x cheaper per token — worth considering if cost matters.
Style Comparison
o3 Mini uses 14.0x more headings
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
