DeepSeek R1vsGemini 2.5 Flash Preview
Gemini 2.5 Flash Preview is cheaper than DeepSeek R1 at $0.15/M vs $0.55/M input tokens.
| Spec | DeepSeek R1 | Gemini 2.5 Flash Preview |
|---|---|---|
| Input price | $0.55/M tokens | $0.15/M tokens |
| Output price | $2.19/M tokens | $0.6/M tokens |
| Context window | 128K tokens | 1.0M tokens |
| Released | Feb 2025 | Apr 2025 |
| SWE-bench Verified | 49.2% | 60.4% |
Our Verdict
DeepSeek R1
Gemini 2.5 Flash Preview
Not enough votes to call it. On the specs, nothing separates them.
Gemini 2.5 Flash Preview costs 3.6x less per token.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek R1
Input
$0.55
Output
$2.19
Gemini 2.5 Flash Preview
Input
$0.15
3.7× cheaper
Output
$0.60
3.6× cheaper
Gemini 2.5 Flash Preview is cheaper on both — 3.7× input, 3.6× output
Writing DNA
Style Comparison
Similarity
48%
DeepSeek R1 uses 4.3x more emoji
DeepSeek R1
Gemini 2.5 Flash Preview
62%Vocabulary51%
15wSentence Length15w
0.52Hedging0.70
8.0Bold4.1
5.7Lists3.3
0.04Emoji0.00
0.62Headings0.09
0.28Transitions0.24
Based on 22 + 12 text responses
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