DeepSeek V4 FlashvsGemini 2.5 Flash Preview 05-20 (thinking)
DeepSeek V4 Flash is cheaper than Gemini 2.5 Flash Preview 05-20 (thinking) at $0.14/M vs $0.15/M input tokens.
| Spec | DeepSeek V4 Flash | Gemini 2.5 Flash Preview 05-20 (thinking) |
|---|---|---|
| Input price | $0.14/M tokens | $0.15/M tokens |
| Output price | $0.28/M tokens | $3.5/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Released | Apr 2026 | May 2025 |
Our Verdict
DeepSeek V4 Flash
Gemini 2.5 Flash Preview 05-20 (thinking)Runner-up
Not enough votes to call it. On the specs, DeepSeek V4 Flash has the edge: bigger model tier, newer.
DeepSeek V4 Flash costs 12x less per token.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Flash
Input
$0.14
1.1× cheaper
Output
$0.28
12× cheaper
Gemini 2.5 Flash Preview 05-20 (thinking)
Input
$0.15
Output
$3.50
DeepSeek V4 Flash is cheaper on both — 1.1× input, 12× output
Writing DNA
Style Comparison
Similarity
45%
DeepSeek V4 Flash uses 52.5x more hedging
DeepSeek V4 Flash
Gemini 2.5 Flash Preview 05-20 (thinking)
54%Vocabulary70%
17wSentence Length11w
0.52Hedging0.00
3.6Bold4.2
2.6Lists7.3
0.00Emoji0.00
0.41Headings0.00
0.19Transitions0.00
Based on 27 + 3 text responses
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