Claude 3.7 SonnetvsDeepSeek V4 Pro
DeepSeek V4 Pro is cheaper than Claude 3.7 Sonnet at $1.74/M vs $3/M input tokens.
| Spec | Claude 3.7 Sonnet | DeepSeek V4 Pro |
|---|---|---|
| Input price | $3/M tokens | $1.74/M tokens |
| Output price | $15/M tokens | $3.48/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Feb 2025 | Apr 2026 |
Our Verdict
DeepSeek V4 Pro
Claude 3.7 SonnetRunner-up
Not enough votes to call it. On the specs, DeepSeek V4 Pro has the edge: bigger model tier, newer, bigger context window.
DeepSeek V4 Pro takes Web Design. DeepSeek V4 Pro costs 4.3x less per token.
Slight edge
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
Claude 3.7 Sonnet
Input
$3.00
Output
$15.00
DeepSeek V4 Pro
Input
$1.74
1.7× cheaper
Output
$3.48
4.3× cheaper
DeepSeek V4 Pro is cheaper on both: 1.7× input, 4.3× output.
Where to run it
14 hosts, cheapest first
Claude 3.7 Sonnet
No hosts listed on OpenRouter.
DeepSeek V4 Pro14 hosts
StreamLakefp8$0.65 in$1.29 out1M98.6% upBaidu Qianfanfp8$0.66 in$1.31 out1M100% upDigitalOcean$0.87 in$1.74 out1M100% upGMI Cloudfp8$0.96 in$1.91 out1M99.7% upDeepInfrafp8$1.30 in$2.60 out1M99.5% upAlibaba Cloudfp8$1.42 in$2.83 out1M100% up
8 more hostsFewer hosts
SiliconFlowfp8$1.50 in$3.13 out1M98.4% upNovitafp8$1.60 in$3.20 out1M100% upVenice$1.65 in$3.30 out1M98.4% upAtlasCloudfp4$1.68 in$3.38 out1M99.3% upBasetenfp4$1.74 in$3.48 out1M99.8% upParasailfp8$1.74 in$3.48 out1M99.8% upAzure AI Foundry$1.91 in$3.83 out1M99.3% upNextBitfp8$2.00 in$4.00 out1M99.9% up
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
38%
DeepSeek V4 Pro uses 3.5x more emoji
Claude 3.7 Sonnet
DeepSeek V4 Pro
61%Vocabulary57%
33wSentence Length18w
0.83Hedging0.52
2.2Bold3.3
4.9Lists2.3
0.00Emoji0.04
1.78Headings0.45
0.16Transitions0.15
Based on 26 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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