DeepSeek R1vsGemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview is cheaper than DeepSeek R1 at $0.25/M vs $0.55/M input tokens.
| Spec | DeepSeek R1 | Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Input price | $0.55/M tokens | $0.25/M tokens |
| Output price | $2.19/M tokens | $1.5/M tokens |
| Context window | 128K tokens | 1.0M tokens |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Feb 2025 | Mar 2026 |
| LiveCodeBench | 63.5% | 72.0% |
Our Verdict
DeepSeek R1
Gemini 3.1 Flash Lite Preview
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek R1
Input
$0.55
Output
$2.19
Gemini 3.1 Flash Lite Preview
Input
$0.25
2.2× cheaper
Output
$1.50
1.5× cheaper
Gemini 3.1 Flash Lite Preview is cheaper on both: 2.2× input, 1.5× output.
Where to run it
2 hosts
DeepSeek R11 host
Gemini 3.1 Flash Lite Preview1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
39%
DeepSeek R1 uses 26.7x more emoji
DeepSeek R1
Gemini 3.1 Flash Lite Preview
64%Vocabulary56%
15wSentence Length18w
0.48Hedging0.28
7.2Bold5.4
4.9Lists3.9
0.27Emoji0.00
0.57Headings0.95
0.25Transitions0.07
Based on 28 + 23 text responses
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