GPT-4o (Omni) vs GPT-1

Compare GPT-4o (Omni) and GPT-1, both from OpenAI, context windows of 128K vs 1K, tested across 6 shared challenges. Updated March 2026.

Which is better, GPT-4o (Omni) or GPT-1?

GPT-4o (Omni) and GPT-1 are both competitive models. Context windows: 128K vs 1K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-4o (Omni) and GPT-1

GPT-4o (Omni) is made by openai while GPT-1 is from openai. GPT-4o (Omni) has a 128K token context window compared to GPT-1's 1K.

Our Verdict
GPT-4o (Omni)
GPT-4o (Omni)
GPT-1
GPT-1Runner-up

No community votes yet. On paper, GPT-4o (Omni) has the edge — bigger model tier, newer, bigger context window.

Slight edge
FAQ

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