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  5. DeepSeek V4 Pro 0813vsHy4 Preview
Updated Aug 2026

DeepSeek V4 Pro 0813vsHy4 Preview

DeepSeek V4 Pro 0813 is cheaper than Hy4 Preview at $0.66/M vs $0.834/M input tokens.

DeepSeek V4 Pro 0813 and Hy4 Preview compared across 54 shared prompts
SpecDeepSeek V4 Pro 0813Hy4 Preview
Input price$0.66/M tokens$0.834/M tokens
Output price$1.98/M tokens$2.501/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedAug 2026Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. Formatting stripped, words untouched.

Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

DeepSeek V4 Pro 0813427 words
Assumptions used Term Loan amortization = 1.0% of original $480m = $4.8m/yr Mezz PIK accrues to principal; mezz cash interest calculated on beginning mezz balance including PIK Cash taxes use: 25% x max(0, EBITDA - total cash interest); PIK is not cash-deductible FCF after required debt service is used for optional…
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Hy4 Preview624 words
MEMORANDUM To: Investment Committee From: Underwriting Team Date: October 26, 2023 Subject: Project Harbor – HarborTech Services (HTS) LBO Underwriting Transaction Overview & Sources & Uses (at Close, end of FY2025) Entry EBITDA: $120.0m Entry Multiple: 12.0x Enterprise Value (EV): $1,440.0m Transaction Fees (2% EV)…
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Generate a Stand-Up Routine

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

DeepSeek V4 Pro 0813431 words
Here’s a 3-minute stand-up routine: I think adulthood is mostly just being tired in places you paid to be. I went to a coffee shop yesterday just to sit down. I didn’t even want coffee. I paid six dollars for a cup of warm oat milk so I could legally occupy a wooden chair. That’s not a beverage.
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Hy4 Preview873 words
Here is a 3-minute stand-up routine focused on observational humor and the absurdity of modern social contracts. Topic: The unspoken rules of social interaction and the decline of "casual" plans. Tone: Conversational, slightly exasperated, energetic. (Walk up to mic, adjust height, take a breath.
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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 Pro 0813152 words
Golden Hour Crispy Chickpeas Serves 2–3 as a snack or side Prep: 5 min Cook: 25–30 min Ingredients (7 common pantry items) 1 can (15 oz) chickpeas, drained and rinsed 1 tablespoon olive oil ¼ cup grated Parmesan cheese ½ teaspoon garlic powder ½ teaspoon smoked paprika ¼ teaspoon salt ¼ teaspoon black pepper…
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Hy4 Preview303 words
Here is a recipe for a savory, comforting dish that requires minimal effort but tastes like it came from a restaurant. Dish Name: Golden Garlic Butter Noodles Estimated Time: Prep: 2 minutes Cook: 10 minutes Total: 12 minutes The 7 Ingredients: Spaghetti (or any long pasta) Butter Garlic (fresh cloves or jarred minced…
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

DeepSeek V4 Pro 08131,665 words
Littoral Caramelised Orkney Scallop, Smoked Bone Marrow Custard, White Miso Butterscotch, Sea Buckthorn & Finger Lime Gel, Nori Buckwheat Tuile, Dill Ash Serves 4 Conceptual Narrative This dish is built on an unusual but deeply logical pairing: the sweet, saline delicacy of a hand-dived scallop and the primal…
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Hy4 Preview989 words
Here is a proposal for a dish designed for the modern tasting menu of a 3-Michelin-starred establishment (such as Eleven Madison Park, Osteria Francescana, or Noma). Dish Title: "The Forest Floor & The Sea" The Concept: This dish explores the concept of "Surf and Turf" deconstructed to its umami roots.
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Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

DeepSeek V4 Pro 0813238 words
Pirate: Arr, what be this “AI model” ye keep jabberin’ about? Some kind o’ ghost that draws its own treasure maps? Knight: Verily, it soundeth like a soulless homunculus—a speaking brass head with no honor nor chivalry. Hacker: D00d, it’s just a neural net. You feed it mad data, it backpropagates, adjusts the weights.
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Hy4 Preview440 words
Setting: A dimly lit tavern called The Syntax Error. PIRATE: (Slamming a tankard of grog on the table) Arrr, me hearties! I hear tell of this new "AI" beastie. Is it like a kraken? Can ye make it swab the deck or find me buried treasure? KNIGHT: (Polishing his visor with a gauntlet) Nay, pirate.
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Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

DeepSeek V4 Pro 08131,701 words
This architecture as described would have serious consistency, availability, and security problems for a real-time collaborative editor. The biggest root causes are client-clock last-write-wins, paragraph-level overwrites, server-local WebSocket fanout, database polling, full-snapshot writes, and CDN caching of API…
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Hy4 Preview1,028 words
This architecture contains several critical flaws that will lead to data loss, poor user experience, and security vulnerabilities. While it attempts to solve scaling via horizontal scaling, the synchronization strategy (Last-Write-Wins) and the transport mechanism (HTTP polling between servers) are fundamentally…
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Our Verdict
DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813
Hy4 Preview
Hy4 Preview

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 0813
Input
$0.66
1.3× cheaper
Output
$1.98
1.3× cheaper
Hy4 Preview
Input
$0.83
Output
$2.50

DeepSeek V4 Pro 0813 is cheaper on both: 1.3× input, 1.3× output.

Where to run it

21 hosts, cheapest first

DeepSeek V4 Pro 081320 hosts
HostInOutContextUptime
DeepSeek$0.66 in·$1.98 out·1M·99.9% upSStreamLake$0.98 in·$2.95 out·1M·99.5% upNNovitafp8$0.99 in·$2.97 out·1M·99.9% upGGMI Cloudfp8$1.06 in·$3.17 out·1M·99.7% upAlibaba Cloud$1.12 in·$3.37 out·1M·100% upNNextBitfp8$1.12 in·$3.37 out·1M·99.9% up
14 more hostsFewer hosts
DDeepInfrafp8$1.30 in·$2.60 out·1M·98.9% upCCoreWeavefp8$1.31 in·$3.96 out·1M·99.9% upSSail Researchfp4$1.31 in·$3.94 out·1M·99.3% upBaidu Qianfanfp8$1.32 in·$3.96 out·1M·100% upBBasetenfp4$1.32 in·$3.96 out·1M·98.9% upCloudflare Workers AI$1.32 in·$3.96 out·1M·96.7% upDDigitalOcean$1.32 in·$3.96 out·1M·99.7% upFFireworks$1.32 in·$3.96 out·1M·99.8% upPParasailfp8$1.32 in·$3.96 out·1M·99.9% upSSiliconFlowfp8$1.32 in·$3.96 out·1M·98.4% upTTogether$1.32 in·$3.96 out·1M·98.8% upPPhala$1.45 in·$4.36 out·1M·99.2% upVVenice$1.65 in·$4.95 out·1M·96.3% upIIonstreamdegraded$0.96 in·$2.88 out·1M·98.5% up
Hy4 Preview1 host
HostInOutContextUptime
Tencentfp8$0.83 in·$2.50 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
45%

Hy4 Preview uses 40.1x more emoji

DeepSeek V4 Pro 0813
Hy4 Preview
57%Vocabulary53%
17wSentence Length16w
0.49Hedging0.43
3.2Bold5.9
3.2Lists3.8
0.00Emoji0.40
1.08Headings0.67
0.04Transitions0.13
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

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Same lab, same size, long tail

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Model pages

DeepSeek V4 Pro 0813 logo
DeepSeek V4 Pro 081358 outputs, specs and price
Hy4 Preview logo
Hy4 Preview58 outputs, specs and price
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