GPT-4 vs GPT-4o (Omni)
Compare GPT-4 and GPT-4o (Omni), both from OpenAI, context windows of 8K vs 128K, tested across 26 shared challenges. Updated May 2026.
Which is better, GPT-4 or GPT-4o (Omni)?
GPT-4 and GPT-4o (Omni) are both competitive models. GPT-4 costs $30/M input tokens vs $2.5/M for GPT-4o (Omni). Context windows: 8K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4 and GPT-4o (Omni)
GPT-4 is made by openai while GPT-4o (Omni) is from openai. GPT-4 has a 8K token context window compared to GPT-4o (Omni)'s 128K. On pricing, GPT-4 costs $30/M input tokens vs $2.5/M for GPT-4o (Omni).
Per 1M tokens
GPT-4o (Omni) is cheaper on both — 12× input, 6.0× output
No community votes yet. On paper, GPT-4o (Omni) has the edge — newer, bigger context window.
GPT-4o (Omni) is 6.0x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4o (Omni) uses 2.5x more emoji
