DeepSeek V3.1vsGemini 2.5 Pro Preview 06-05
DeepSeek V3.1 is cheaper than Gemini 2.5 Pro Preview 06-05 at $0.2/M vs $1.25/M input tokens.
| Spec | DeepSeek V3.1 | Gemini 2.5 Pro Preview 06-05 |
|---|---|---|
| Input price | $0.2/M tokens | $1.25/M tokens |
| Output price | $0.8/M tokens | $10/M tokens |
| Context window | 164K tokens | 1.0M tokens |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Aug 2025 | Jun 2025 |
| SWE-bench Verified | 66.0% | 67.2% |
Our Verdict
DeepSeek V3.1
Gemini 2.5 Pro Preview 06-05
Not enough votes to call it. On the specs, nothing separates them.
DeepSeek V3.1 costs 13x less per token.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
DeepSeek V3.1
Input
$0.20
6.3× cheaper
Output
$0.80
13× cheaper
Gemini 2.5 Pro Preview 06-05
Input
$1.25
Output
$10.00
DeepSeek V3.1 is cheaper on both: 6.3× input, 13× output.
Where to run it
10 hosts, cheapest first
Gemini 2.5 Pro Preview 06-052 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 12 Sep 2026.
Writing DNA
Style Comparison
Similarity
77%
DeepSeek V3.1 uses 2.2x more emoji
DeepSeek V3.1
Gemini 2.5 Pro Preview 06-05
53%Vocabulary51%
16wSentence Length15w
0.41Hedging0.31
4.3Bold4.8
3.8Lists4.1
0.02Emoji0.00
0.40Headings0.98
0.20Transitions0.05
Based on 25 + 20 text responses
Research
What we learned reading every model
FAQ
Common questions
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