DeepSeek R1 vs GPT-4o (Omni)
Compare DeepSeek R1 by DeepSeek against GPT-4o (Omni) by OpenAI, in 2 community votes, gpt-4o (omni) wins 100% of head-to-head duels, context windows of 128K vs 128K, tested across 53 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 or GPT-4o (Omni)?
GPT-4o (Omni) is the better choice overall, winning 100% of 2 blind community votes on Rival. DeepSeek R1 costs $0.55/M input tokens vs $2.5/M for GPT-4o (Omni). Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and GPT-4o (Omni)
DeepSeek R1 is made by deepseek while GPT-4o (Omni) is from openai. DeepSeek R1 has a 128K token context window compared to GPT-4o (Omni)'s 128K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $2.5/M for GPT-4o (Omni). In community voting, In 2 community votes, GPT-4o (Omni) wins 100% of head-to-head duels.
In 2 community votes, GPT-4o (Omni) wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Per 1M tokens
DeepSeek R1 is cheaper on both — 4.5× input, 4.6× output
Pick GPT-4o (Omni). In 2 blind votes, GPT-4o (Omni) wins 100% of the time. That's not luck.
DeepSeek R1 is 4.6x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4o (Omni) uses 2.2x more headings
