Claude 3.7 Thinking Sonnet vs GPT-5.4 Pro
Compare Claude 3.7 Thinking Sonnet by Anthropic against GPT-5.4 Pro by OpenAI, context windows of 200K vs 1.1M, tested across 18 shared challenges. Updated April 2026.
Which is better, Claude 3.7 Thinking Sonnet or GPT-5.4 Pro?
Claude 3.7 Thinking Sonnet and GPT-5.4 Pro are both competitive models. Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $30/M for GPT-5.4 Pro. Context windows: 200K vs 1050K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3.7 Thinking Sonnet and GPT-5.4 Pro
Claude 3.7 Thinking Sonnet is made by anthropic while GPT-5.4 Pro is from openai. Claude 3.7 Thinking Sonnet has a 200K token context window compared to GPT-5.4 Pro's 1050K. On pricing, Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $30/M for GPT-5.4 Pro.
No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window.
Claude 3.7 Thinking Sonnet is 6.0x cheaper per token — worth considering if cost matters.
Style Comparison
Claude 3.7 Thinking Sonnet uses 21.1x more transitions
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.
