Claude 3 Sonnet vs o1
Compare Claude 3 Sonnet by Anthropic against o1 by OpenAI, tested across 13 shared challenges. Updated April 2026.
Which is better, Claude 3 Sonnet or o1?
Claude 3 Sonnet and o1 are both competitive models. Claude 3 Sonnet costs $3/M input tokens vs $15/M for o1. Compare their real outputs side by side below.
Key Differences Between Claude 3 Sonnet and o1
Claude 3 Sonnet is made by anthropic while o1 is from openai. On pricing, Claude 3 Sonnet costs $3/M input tokens vs $15/M for o1.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Claude 3 Sonnet is 4.0x cheaper per token — worth considering if cost matters.
Style Comparison
o1 uses 503.7x 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.
