GPT-5.4 Mini vs Claude Sonnet 4

Compare GPT-5.4 Mini by OpenAI against Claude Sonnet 4 by Anthropic, context windows of 400K vs 200K, tested across 33 shared challenges. Updated March 2026.

Which is better, GPT-5.4 Mini or Claude Sonnet 4?

GPT-5.4 Mini and Claude Sonnet 4 are both competitive models. GPT-5.4 Mini costs $0.75/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 400K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-5.4 Mini and Claude Sonnet 4

GPT-5.4 Mini is made by openai while Claude Sonnet 4 is from anthropic. GPT-5.4 Mini has a 400K token context window compared to Claude Sonnet 4's 200K. On pricing, GPT-5.4 Mini costs $0.75/M input tokens vs $3/M for Claude Sonnet 4.

Our Verdict
GPT-5.4 Mini
GPT-5.4 Mini
Claude Sonnet 4
Claude Sonnet 4

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

GPT-5.4 Mini is 3.3x cheaper per token — worth considering if cost matters.

Too close to call
FAQ

This comparison gets 800+ views/month. Your brand could be here.

Advertise