ChatGPT-4o (March 2025)vsDeepSeek V3 (March 2024)
DeepSeek V3 (March 2024) is cheaper than ChatGPT-4o (March 2025) at $0.14/M vs $5/M input tokens.
| Spec | ChatGPT-4o (March 2025) | DeepSeek V3 (March 2024) |
|---|---|---|
| Input price | $5/M tokens | $0.14/M tokens |
| Output price | $15/M tokens | $0.28/M tokens |
| Context window | 128K tokens | 128K tokens |
| Released | Mar 2025 | Mar 2024 |
Our Verdict
ChatGPT-4o (March 2025)
DeepSeek V3 (March 2024)
Not enough votes to call it. On the specs, nothing separates them.
Pick ChatGPT-4o (March 2025) for Conversation. Pick DeepSeek V3 (March 2024) for Web Design. DeepSeek V3 (March 2024) costs 54x less per token.
Too close to call
API pricing
Cost per 1M tokens
ChatGPT-4o (March 2025)
Input
$5.00
Output
$15.00
DeepSeek V3 (March 2024)
Input
$0.14
36× cheaper
Output
$0.28
54× cheaper
DeepSeek V3 (March 2024) is cheaper on both — 36× input, 54× output
Writing DNA
Style Comparison
Similarity
66%
ChatGPT-4o (March 2025) uses 3.7x more emoji
ChatGPT-4o (March 2025)
DeepSeek V3 (March 2024)
55%Vocabulary58%
24wSentence Length18w
0.52Hedging0.73
3.3Bold7.5
6.0Lists7.6
0.94Emoji0.26
0.63Headings1.60
0.05Transitions0.08
Based on 15 + 16 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
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