GPT-4o (Omni) vs GPT-4o mini
Compare GPT-4o (Omni) and GPT-4o mini, both from OpenAI, context windows of 128K vs 128K, tested across 54 shared challenges. Updated May 2026.
Which is better, GPT-4o (Omni) or GPT-4o mini?
GPT-4o (Omni) and GPT-4o mini are both competitive models. GPT-4o (Omni) costs $2.5/M input tokens vs $0.15/M for GPT-4o mini. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and GPT-4o mini
GPT-4o (Omni) is made by openai while GPT-4o mini is from openai. GPT-4o (Omni) has a 128K token context window compared to GPT-4o mini's 128K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $0.15/M for GPT-4o mini.
Per 1M tokens
GPT-4o mini is cheaper on both — 17× input, 17× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT-4o mini is 17x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4o (Omni) uses 2.5x more emoji
