ChatGPT-4o (March 2025) vs DeepSeek V3 (March 2024)
Compare ChatGPT-4o (March 2025) by OpenAI against DeepSeek V3 (March 2024) by DeepSeek, in 10 community votes, chatgpt-4o (march 2025) wins 60% of head-to-head duels, context windows of 128K vs 128K, tested across 32 shared challenges. Updated April 2026.
Which is better, ChatGPT-4o (March 2025) or DeepSeek V3 (March 2024)?
ChatGPT-4o (March 2025) is the better choice overall, winning 60% of 10 blind community votes on Rival. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.14/M for DeepSeek V3 (March 2024). Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between ChatGPT-4o (March 2025) and DeepSeek V3 (March 2024)
ChatGPT-4o (March 2025) is made by openai while DeepSeek V3 (March 2024) is from deepseek. ChatGPT-4o (March 2025) has a 128K token context window compared to DeepSeek V3 (March 2024)'s 128K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.14/M for DeepSeek V3 (March 2024). In community voting, In 10 community votes, ChatGPT-4o (March 2025) wins 60% of head-to-head duels.
In 10 community votes, ChatGPT-4o (March 2025) wins 60% of head-to-head duels. ChatGPT-4o (March 2025) leads in Conversation, while DeepSeek V3 (March 2024) leads in Web Design. Based on blind community voting from the Rival open dataset of 10+ human preference judgments for this pair.
Pick ChatGPT-4o (March 2025). In 10 blind votes, ChatGPT-4o (March 2025) wins 60% of the time. That's not luck.
Pick ChatGPT-4o (March 2025) for Conversation. Pick DeepSeek V3 (March 2024) for Web Design. DeepSeek V3 (March 2024) is 54x cheaper per token — worth considering if cost matters.
Style Comparison
ChatGPT-4o (March 2025) uses 3.7x more emoji
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
