GPT-4.1 Nano vs Claude Sonnet 4
Compare GPT-4.1 Nano by OpenAI against Claude Sonnet 4 by Anthropic, context windows of 1.0M vs 200K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT-4.1 Nano or Claude Sonnet 4?
GPT-4.1 Nano and Claude Sonnet 4 are both competitive models. GPT-4.1 Nano costs $0.1/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 1048K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 Nano and Claude Sonnet 4
GPT-4.1 Nano is made by openai while Claude Sonnet 4 is from anthropic. GPT-4.1 Nano has a 1048K token context window compared to Claude Sonnet 4's 200K. On pricing, GPT-4.1 Nano costs $0.1/M input tokens vs $3/M for Claude Sonnet 4.
No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer.
GPT-4.1 Nano is 38x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Sonnet 4 uses 87.9x more emoji
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.
