Gemini 2.0 Flash Thinking vs GPT-5.6 Terra
Compare Gemini 2.0 Flash Thinking by Google AI against GPT-5.6 Terra by OpenAI, context windows of 500K vs 1.1M, tested across 20 shared challenges.
Our Verdict
GPT-5.6 Terra
Gemini 2.0 Flash ThinkingRunner-up
No community votes yet. On paper, GPT-5.6 Terra has the edge — newer, bigger context window.
Gemini 2.0 Flash Thinking is 30x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.0 Flash Thinking
Input
$0.25
10× cheaper
Output
$0.50
30× cheaper
GPT-5.6 Terra
Input
$2.50
Output
$15.00
Gemini 2.0 Flash Thinking is cheaper on both — 10× input, 30× output
Writing DNA
Style Comparison
Similarity
49%
GPT-5.6 Terra uses 33.6x more headings
Gemini 2.0 Flash Thinking
GPT-5.6 Terra
54%Vocabulary57%
15wSentence Length18w
0.64Hedging0.85
3.8Bold2.8
2.4Lists4.6
0.00Emoji0.00
0.03Headings1.12
0.30Transitions0.06
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
