Compare ChatGPT-4o (March 2025) by OpenAI against DeepSeek V3.2 Speciale by DeepSeek, context windows of 128K vs 131K, tested across 29 shared challenges. Updated April 2026.
ChatGPT-4o (March 2025) and DeepSeek V3.2 Speciale are both competitive models. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
ChatGPT-4o (March 2025) is made by openai while DeepSeek V3.2 Speciale is from deepseek. ChatGPT-4o (March 2025) has a 128K token context window compared to DeepSeek V3.2 Speciale's 131K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek V3.2 Speciale is 36x cheaper per token — worth considering if cost matters.
ChatGPT-4o (March 2025) uses 8.6x more emoji
Ask 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.

Compare ChatGPT-4o (March 2025) by OpenAI against DeepSeek V3.2 Speciale by DeepSeek, context windows of 128K vs 131K, tested across 29 shared challenges. Updated April 2026.
ChatGPT-4o (March 2025) and DeepSeek V3.2 Speciale are both competitive models. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
ChatGPT-4o (March 2025) is made by openai while DeepSeek V3.2 Speciale is from deepseek. ChatGPT-4o (March 2025) has a 128K token context window compared to DeepSeek V3.2 Speciale's 131K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek V3.2 Speciale is 36x cheaper per token — worth considering if cost matters.
ChatGPT-4o (March 2025) uses 8.6x more emoji
Ask 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.

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24 fights queued
12+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy