DeepSeek V4 ProvsHorizon Alpha
Horizon Alpha is cheaper than DeepSeek V4 Pro at $0/M vs $1.74/M input tokens.
| Spec | DeepSeek V4 Pro | Horizon Alpha |
|---|---|---|
| Input price | $1.74/M tokens | Free |
| Output price | $3.48/M tokens | Free |
| Context window | 1.0M tokens | 256K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2026 | Jul 2025 |
Our Verdict
DeepSeek V4 Pro
Horizon AlphaRunner-up
Not enough votes to call it. On the specs, DeepSeek V4 Pro has the edge: bigger model tier, newer, bigger context window, major provider backing.
Slight edge
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
DeepSeek V4 Pro
Input
$1.74
Output
$3.48
Horizon Alpha
Input
$0.000
Output
$0.000
Where to run it
15 hosts, cheapest first
DeepSeek V4 Pro15 hosts
StreamLakefp8$0.73 in$1.46 out1M96.4% upBaidu Qianfanfp8$0.74 in$1.47 out1M100% upDigitalOcean$0.87 in$1.74 out1M98.7% upGMI Cloudfp8$0.96 in$1.91 out1M99.7% upDeepInfrafp8$1.30 in$2.60 out1M99.4% upAlibaba Cloudfp8$1.42 in$2.83 out1M100% up
9 more hostsFewer hosts
SiliconFlowfp8$1.50 in$3.13 out1M97.3% upNovitafp8$1.60 in$3.20 out1M100% upVenice$1.65 in$3.30 out1M97.2% upAtlasCloudfp4$1.68 in$3.38 out1M99.2% upBasetenfp4$1.74 in$3.48 out1M99.7% upParasailfp8$1.74 in$3.48 out1M99.3% upAzure AI Foundry$1.91 in$3.83 out1M99.3% upNextBitfp8$2.00 in$4.00 out1M99.9% upFireworksdegraded$1.20 in$1.20 out1M0% up
Horizon Alpha
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 12 Sep 2026.
Writing DNA
Style Comparison
Similarity
70%
DeepSeek V4 Pro uses 328.4x more bold
DeepSeek V4 Pro
Horizon Alpha
57%Vocabulary65%
18wSentence Length14w
0.52Hedging0.22
3.3Bold0.0
2.3Lists3.5
0.04Emoji0.00
0.45Headings0.00
0.15Transitions0.12
Based on 27 + 14 text responses
Research
What we learned reading every model
FAQ
Common questions
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