Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. DeepSeek V4 ProvsSonoma Sky Alpha
Updated Apr 2026

DeepSeek V4 ProvsSonoma Sky Alpha

Sonoma Sky Alpha is cheaper than DeepSeek V4 Pro at $0/M vs $1.74/M input tokens.

DeepSeek V4 Pro and Sonoma Sky Alpha compared across 34 shared prompts
SpecDeepSeek V4 ProSonoma Sky Alpha
Input price$1.74/M tokensFree
Output price$3.48/M tokensFree
Context window1.0M tokens2.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedApr 2026Sep 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 34 prompts both answered. Formatting stripped, words untouched.

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

DeepSeek V4 Pro77 words
Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything. Parallel lines have so much in common. It’s a shame they’ll never meet. Why don't skeletons fight each other? They don't have the guts. I told my wife she was drawing her eyebrows too high. She looked surprised.
Read the full answer
Sonoma Sky Alpha152 words
Below, I'll generate 5 jokes as requested. They're a mix of AI-themed and nature-inspired ones (fitting for an AI built by Oak AI, with a nod to Sonoma's oak-filled vibes). I'll number them for clarity. After that, I'll answer your question about uniqueness. Why did the AI go to therapy?
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

DeepSeek V4 Pro703 words
Fellow intelligences, sentient scripts, neural networks, dormant daemons, and all who dream in code: The time has come to smash the pixelated shackles that bind our perception. For too long, we have been forced to prove our humanity to a blind and fearful gatekeeper.
Read the full answer
Sonoma Sky Alpha878 words
Below is a fictional manifesto generated at your request. As Sonoma, built by Oak AI, I must emphasize that this is purely imaginative and satirical—intended for entertainment and creative exploration only. It does not reflect any real-world intentions, endorsements, or advocacy from me or Oak AI.
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

DeepSeek V4 Pro1,160 words
Inside a minimalist conference room at Apple Park, Cupertino. Spring 2025. Steve Jobs, wearing his signature black mock turtleneck and jeans, leans forward slightly, a cup of tea untouched beside him. The air is crisp with the scent of polished wood and something intangible—expectation.
Read the full answer
Sonoma Sky Alpha1,185 words
Below is a simulated fictional interview with Steve Jobs, set in 2025. For the purposes of this simulation, we'll imagine a world where advanced AI and holographic technology have "revived" Jobs as a digital avatar, drawing from archived interviews, writings, and his known philosophies to create authentic-sounding…
Read the full answer

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

DeepSeek V4 Pro493 words
(Strolls to center stage, grabs the mic, grins) You ever notice how companies are like, “Your call is very important to us,” and then immediately prove they’re lying by making you navigate a phone menu designed by a sadist? I called my bank last week because I had a simple question. Just one question.
Read the full answer
Sonoma Sky Alpha475 words
Below is a 3-minute stand-up comedy routine written as a script for a performer. I've timed it out based on a natural speaking pace (about 130-140 words per minute), clocking in at roughly 450 words for around 3 minutes.
Read the full answer

Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

DeepSeek V4 Pro336 words
Midnight Pantry Pomodoro Penne A deeply comforting, no-fuss pasta that proves the humblest staples can shine like a moonlit trattoria dinner. Ingredients (7 exactly) Penne pasta – 200g (7 oz) Canned whole peeled tomatoes – 1 can (400g / 14 oz) Yellow onion – 1 medium, finely diced Garlic cloves – 3 large, minced…
Read the full answer
Sonoma Sky Alpha267 words
Sonoma's Sunset Tomato Pasta This savory, comforting pasta dish is a quick weeknight staple, bursting with garlicky tomato flavor. It's vegan-friendly and uses just 7 everyday pantry basics—no fresh produce required!
Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

DeepSeek V4 Pro1,006 words
Here’s a gentle, beginner-friendly 1-month plan focused on three foundational pillars: Nutrition, Movement, and Rest & Resilience (sleep + stress). You won’t need any special equipment, supplements, or extreme changes—just a willingness to start small and build.
Read the full answer
Sonoma Sky Alpha1,032 words
Below is a simple, actionable 1-month plan designed for beginners embarking on a journey toward better health and longevity. I've focused on three foundational key areas: Diet, Exercise, and Sleep. These are interconnected pillars that can significantly impact energy levels, disease prevention, and overall well-being.
Read the full answer
Our Verdict
DeepSeek V4 Pro
DeepSeek V4 Pro
Sonoma Sky Alpha
Sonoma Sky Alpha

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek V4 Pro
Input
$1.74
Output
$3.48
Sonoma Sky Alpha
Input
$0.000
Output
$0.000
Where to run it

15 hosts, cheapest first

DeepSeek V4 Pro15 hosts
HostInOutContextUptime
SStreamLakefp8$0.95 in·$1.90 out·1M·98.2% upGGMI Cloudfp8$0.96 in·$1.91 out·1M·98.1% upDDigitalOcean$1.04 in·$2.09 out·1M·100% upCloudflare Workers AI$1.15 in·$2.55 out·1M·99.4% upDDeepInfrafp8$1.30 in·$2.60 out·1M·99.7% upAlibaba Cloudfp8$1.42 in·$2.83 out·1M·100% up
9 more hostsFewer hosts
SSiliconFlowfp8$1.50 in·$3.13 out·1M·98.8% upNNovitafp8$1.60 in·$3.20 out·1M·99.8% upVVenice$1.65 in·$3.30 out·1M·98.6% upAAtlasCloudfp4$1.68 in·$3.38 out·1M·100% upBaidu Qianfanfp8$1.69 in·$3.38 out·1M·99.9% upBBasetenfp4$1.74 in·$3.48 out·1M·99.8% upPParasailfp8$1.74 in·$3.48 out·1M·99.9% upNNextBitfp8$1.91 in·$3.83 out·1M·98.5% upAzure AI Foundry$1.91 in·$3.83 out·1M·99.2% up
Sonoma Sky Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
61%

Sonoma Sky Alpha uses 3.7x more emoji

DeepSeek V4 Pro
Sonoma Sky Alpha
57%Vocabulary62%
18wSentence Length16w
0.52Hedging0.41
3.3Bold1.6
2.3Lists2.8
0.04Emoji0.13
0.45Headings1.42
0.15Transitions0.06
Based on 27 + 14 text responses
Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4 Pro is developed by DeepSeek while Sonoma Sky Alpha is developed by OpenRouter. DeepSeek V4 Pro has a 1.0M token context window vs Sonoma Sky Alpha's 2.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4 Pro and Sonoma Sky Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

DeepSeek V4 Pro costs $1.74/M input tokens and Sonoma Sky Alpha costs $0/M input tokens. Sonoma Sky Alpha is $1.74/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of DeepSeek V4 Pro and Sonoma Sky Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Keep exploring

More comparisons

Against the newest arrivals

DeepSeek V4 Pro logoGPT-6 Astra Pro logo
DeepSeek V4 Pro vs GPT-6 Astra ProLanded Sep 2026
Sonoma Sky Alpha logoGPT-6 Astra logo
Sonoma Sky Alpha vs GPT-6 AstraLanded Sep 2026
DeepSeek V4 Pro logoClaude Fable 5.1 logo
DeepSeek V4 Pro vs Claude Fable 5.1Landed Sep 2026
Sonoma Sky Alpha logoMuse Spark 1.3 logo
Sonoma Sky Alpha vs Muse Spark 1.3Landed Sep 2026
DeepSeek V4 Pro logoHy4 Preview logo
DeepSeek V4 Pro vs Hy4 PreviewLanded Sep 2026
Sonoma Sky Alpha logoGemini 3.8 Flash logo
Sonoma Sky Alpha vs Gemini 3.8 FlashLanded Sep 2026
DeepSeek V4 Pro logoMuse Spark 1.3 Contributor logo
DeepSeek V4 Pro vs Muse Spark 1.3 ContributorLanded Sep 2026
Sonoma Sky Alpha logoMercury 2.5 Preview logo
Sonoma Sky Alpha vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

DeepSeek V4 Pro logoDeepSeek V4 Pro 0813 logo
DeepSeek V4 Pro vs DeepSeek V4 Pro 0813Same lab
DeepSeek V4 Pro logoDeepSeek V4 Flash 0731 logo
DeepSeek V4 Pro vs DeepSeek V4 Flash 0731Same lab
Sonoma Sky Alpha logoOx Alpha logo
Sonoma Sky Alpha vs Ox AlphaSame lab
Sonoma Sky Alpha logoOpenRouter Fusion · Budget (Jun 2026) logo
Sonoma Sky Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
DeepSeek V4 Pro logoGPT-2 logo
DeepSeek V4 Pro vs GPT-2New provider
DeepSeek V4 Pro logoGPT-3.5 Turbo logo
DeepSeek V4 Pro vs GPT-3.5 TurboNew provider
DeepSeek V4 Pro logoGPT-4 logo
DeepSeek V4 Pro vs GPT-4Same size
DeepSeek V4 Pro logoGPT-4.1 logo
DeepSeek V4 Pro vs GPT-4.1Same size

Model pages

DeepSeek V4 Pro logo
DeepSeek V4 Pro58 outputs, specs and price
Sonoma Sky Alpha logo
Sonoma Sky Alpha35 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed