DeepSeek V4 ProvsOpenAI o4-mini
OpenAI o4-mini is cheaper than DeepSeek V4 Pro at $1.1/M vs $1.74/M input tokens.
| Spec | DeepSeek V4 Pro | OpenAI o4-mini |
|---|---|---|
| Input price | $1.74/M tokens | $1.1/M tokens |
| Output price | $3.48/M tokens | $4.4/M tokens |
| Context window | 1.0M tokens | — |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Apr 2026 | Apr 2025 |
Our Verdict
DeepSeek V4 Pro
OpenAI o4-miniRunner-up
Not enough votes to call it. On the specs, DeepSeek V4 Pro has the edge: bigger model tier, newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Pro
Input
$1.74
Output
$3.48
1.3× cheaper
OpenAI o4-mini
Input
$1.10
1.6× cheaper
Output
$4.40
OpenAI o4-mini wins input (1.6× cheaper)·DeepSeek V4 Pro wins output (1.3× cheaper)
Where to run it
16 hosts, cheapest first
DeepSeek V4 Pro15 hosts
Baidu Qianfanfp8$0.87 in$1.74 out1M99.9% upDigitalOcean$0.87 in$1.74 out1M99% upStreamLakefp8$0.87 in$1.74 out1M99.1% upGMI Cloudfp8$0.96 in$1.91 out1M97.9% upDeepInfrafp8$1.30 in$2.60 out1M99.2% upAlibaba Cloudfp8$1.42 in$2.83 out1M99.9% up
9 more hostsFewer hosts
SiliconFlowfp8$1.50 in$3.13 out1M97% upNovitafp8$1.60 in$3.20 out1M100% upVenice$1.65 in$3.30 out1M96.5% upAtlasCloudfp4$1.68 in$3.38 out1M96.1% upBasetenfp4$1.74 in$3.48 out1M98.8% upNextBitfp8$1.80 in$3.55 out1M100% upAzure AI Foundry$1.91 in$3.83 out1M98.9% upFireworksdegraded$1.20 in$1.20 out1M0% upParasailfp8degraded$1.74 in$3.48 out1M98.9% up
OpenAI o4-mini1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
61%
DeepSeek V4 Pro uses 328.4x more bold
DeepSeek V4 Pro
OpenAI o4-mini
57%Vocabulary73%
18wSentence Length21w
0.52Hedging0.39
3.3Bold0.0
2.3Lists2.0
0.04Emoji0.00
0.45Headings0.00
0.15Transitions0.05
Based on 27 + 17 text responses
Research
What we learned reading every model
FAQ
Common questions
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