DeepSeek V4 Flash 0731vsGPT-5.4 Pro
DeepSeek V4 Flash 0731 is cheaper than GPT-5.4 Pro at $0.14/M vs $30/M input tokens.
| Spec | DeepSeek V4 Flash 0731 | GPT-5.4 Pro |
|---|---|---|
| Input price | $0.14/M tokens | $30/M tokens |
| Output price | $0.28/M tokens | $180/M tokens |
| Context window | 1.0M tokens | 1.1M tokens |
| Released | Jul 2026 | Mar 2026 |
Our Verdict
DeepSeek V4 Flash 0731
GPT-5.4 Pro
Not enough votes to call it. On the specs, nothing separates them.
DeepSeek V4 Flash 0731 costs 643x less per token.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Flash 0731
Input
$0.14
214× cheaper
Output
$0.28
643× cheaper
GPT-5.4 Pro
Input
$30.00
Output
$180.00
DeepSeek V4 Flash 0731 is cheaper on both — 214× input, 643× output
Writing DNA
Style Comparison
Similarity
58%
DeepSeek V4 Flash 0731 uses 3.6x more transitions
DeepSeek V4 Flash 0731
GPT-5.4 Pro
52%Vocabulary50%
18wSentence Length35w
0.38Hedging0.70
5.7Bold7.5
3.4Lists8.3
0.00Emoji0.00
0.83Headings2.52
0.04Transitions0.01
Based on 23 + 12 text responses
Research
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