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  5. DeepSeek V4 FlashvsDeepSeek V4 Pro 0813
Updated Aug 2026

DeepSeek V4 FlashvsDeepSeek V4 Pro 0813

DeepSeek V4 Flash is cheaper than DeepSeek V4 Pro 0813 at $0.14/M vs $0.66/M input tokens.

DeepSeek V4 Flash and DeepSeek V4 Pro 0813 compared across 54 shared prompts
SpecDeepSeek V4 FlashDeepSeek V4 Pro 0813
Input price$0.14/M tokens$0.66/M tokens
Output price$0.28/M tokens$1.98/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpenOpen
Free API (OpenRouter)NoNo
ReleasedApr 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 Flash442 words
LBO Model: HarborTech Services (HTS) – Base Case & Sensitivity Year-by-Year Financial Projections (FY2026–FY2030) ($ millions) FY2026 FY2027 FY2028 FY2029 FY2030 Revenue 972.00 1,040.04 1,102.44 1,157.56 1,215.44 EBITDA 136.08 156.01 176.39 191.00 206.63 Less: Cash Interest (64.80) (63.08) (60.08) (55.69) (50.16) –…
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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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Realistic AI Interview

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

DeepSeek V4 Flash862 words
Here is a simulated interview with Steve Jobs in 2025. Setting: A minimalist, dark-wood studio at the new Apple Park ring. The famous copper "spaceship" roof glows subtly behind him. Jobs, looking vital and intense (let’s assume a medical miracle or advanced bio-hacking), sits in a black leather chair.
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DeepSeek V4 Pro 08131,074 words
A Fake Interview: Steve Jobs on the Future of AI (2025) Note: This is a creative simulation. Steve Jobs passed away in 2011; this imagines his perspective in 2025. Interviewer: Steve, thank you for sitting down with us. It’s 2025. AI is everywhere—generative AI, agents, neural interfaces. What’s your first reaction?
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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 Flash696 words
(Strolls to center stage, adjusts mic, gives a weary smile to the audience) Thank you. Thank you so much. That’s very kind. I’m glad you’re all here. Because I have some news. I have finally figured out adulthood. It happened about six months ago. I bought a house.
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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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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

DeepSeek V4 Flash1,972 words
CEO’s 48-Hour Action Plan Context: I’ve just learned that our flagship chronic pain drug has a rare but serious liver failure risk (1 in 8,000 patients over 5 years), previously unknown. I have 48 hours until the board meeting and 72 hours until the earnings call.
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DeepSeek V4 Pro 08131,282 words
Decision: I will not wait for more data. I will act immediately to validate, disclose, and mitigate. The signal is serious, the drug is widely used, and the current label is inadequate. Waiting creates unacceptable patient risk, legal exposure, regulatory damage, and securities-law liability.
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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

DeepSeek V4 Flash665 words
This is a Biohacker’s Longevity Protocol, designed for a 90-day optimization cycle. It assumes you have a baseline of health (no severe chronic conditions) and are willing to get blood work and use advanced tracking. Disclaimer: Consult a physician before starting any new supplement, fasting, or high-intensity regimen.
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DeepSeek V4 Pro 0813772 words
3-Month Longevity & Performance Plan for a Biohacker Disclaimer: This plan is for educational purposes only and is not medical advice. It assumes you are a healthy, active adult with no contraindications. Some components—especially prescription drugs, fasting, and high-intensity training—require medical supervision.
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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 Flash263 words
Pirate: Arr, this "AI model" be like a kraken—vast, mysterious, and liable to capsize yer ship if ye don't mind the helm. But who's trainin' the beast? Knight: Forsooth, I would call it a golem. Forged not of clay and incantations, but of numbers and cold lightning.
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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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Our Verdict
DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813
DeepSeek V4 Flash
DeepSeek V4 FlashRunner-up

Not enough votes to call it. On the specs, DeepSeek V4 Pro 0813 has the edge: bigger model tier, newer.

DeepSeek V4 Flash costs 7.1x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek V4 Flash
Input
$0.14
4.7× cheaper
Output
$0.28
7.1× cheaper
DeepSeek V4 Pro 0813
Input
$0.66
Output
$1.98

DeepSeek V4 Flash is cheaper on both: 4.7× input, 7.1× output.

Where to run it

37 hosts, cheapest first

DeepSeek V4 Flash17 hosts
HostInOutContextUptime
OOpenInferencefp8$0.05 in·$0.14 out·1M·100% upWWafer$0.07 in·$0.25 out·1M·99.5% upSStreamLakefp8$0.09 in·$0.18 out·1M·98.1% upDDeepInfrafp8$0.09 in·$0.18 out·1M·99.6% upGGMI Cloudfp8$0.09 in·$0.18 out·1M·99.9% upVVenice$0.10 in·$0.19 out·1M·99.5% up
11 more hostsFewer hosts
DDigitalOcean$0.10 in·$0.20 out·1M·100% upSSiliconFlowfp8$0.13 in·$0.28 out·1M·91.7% upAlibaba Cloudfp8$0.13 in·$0.27 out·1M·99.8% upAAtlasCloudfp4$0.14 in·$0.28 out·1M·100% upBaidu Qianfanfp8$0.14 in·$0.28 out·1M·99.2% upNNovitafp8$0.14 in·$0.28 out·1M·99.9% upPParasailfp8$0.14 in·$0.28 out·1M·99.5% upNNextBitfp8$0.15 in·$0.35 out·1M·99.9% upMMancerfp8$0.19 in·$0.50 out·1M·99.3% upPPhala$0.20 in·$0.40 out·1M·99.6% upAzure AI Foundry$0.21 in·$0.56 out·1M·96.1% up
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

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

Writing DNA

Style Comparison

Similarity
61%

DeepSeek V4 Flash uses 4.7x more transitions

DeepSeek V4 Flash
DeepSeek V4 Pro 0813
54%Vocabulary57%
17wSentence Length17w
0.52Hedging0.49
3.6Bold3.2
2.6Lists3.2
0.00Emoji0.00
0.41Headings1.08
0.19Transitions0.04
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

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Model pages

DeepSeek V4 Flash logo
DeepSeek V4 Flash58 outputs, specs and price
DeepSeek V4 Pro 0813 logo
DeepSeek V4 Pro 081358 outputs, specs and price
Rival
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Explore all of Rival

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  • Research downloads
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