Claude 3 Sonnet vs Gemini 3.1 Pro Preview
Compare Claude 3 Sonnet by Anthropic against Gemini 3.1 Pro Preview by Google AI, tested across 13 shared challenges. Updated April 2026.
Which is better, Claude 3 Sonnet or Gemini 3.1 Pro Preview?
Claude 3 Sonnet and Gemini 3.1 Pro Preview are both competitive models. Claude 3 Sonnet costs $3/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Compare their real outputs side by side below.
Key Differences Between Claude 3 Sonnet and Gemini 3.1 Pro Preview
Claude 3 Sonnet is made by anthropic while Gemini 3.1 Pro Preview is from google. On pricing, Claude 3 Sonnet costs $3/M input tokens vs $2/M for Gemini 3.1 Pro Preview.
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — bigger model tier, newer, bigger context window.
Style Comparison
Gemini 3.1 Pro Preview uses 487.7x more bold
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.
