DeepSeek V3 (March 2024) vs ChatGPT-4o (March 2025)

Compare DeepSeek V3 (March 2024) by DeepSeek against ChatGPT-4o (March 2025) by OpenAI, in 10 community votes, chatgpt-4o (march 2025) wins 60% of head-to-head duels, context windows of 128K vs 128K, tested across 30 shared challenges. Updated February 2026.

In 10 community votes, ChatGPT-4o (March 2025) wins 60% of head-to-head duels. DeepSeek V3 (March 2024) leads in Web Design, while ChatGPT-4o (March 2025) leads in Conversation. Based on blind community voting from the RIVAL open dataset of 10+ human preference judgments for this pair.

Web Design: DeepSeek V3 (March 2024) wins 57% of votes
Conversation: ChatGPT-4o (March 2025) wins 100% of votes
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