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  3. DeepSeek V4 Pro vs OpenRouter Fusion · Budget (Jun 2026)
Updated Jun 2026

DeepSeek V4 Pro vs OpenRouter Fusion · Budget (Jun 2026)

DeepSeek V4 Pro has a larger context window than OpenRouter Fusion · Budget (Jun 2026) (1.0M tokens vs 256K tokens).

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
DeepSeek V4 Pro
Loading the build
OpenRouter Fusion · Budget (Jun 2026)

Which answer wins?

Written rounds

24 prompts
  • The transistor arrives in 1920. Trace it forward to 1980, second-order effects included.

    DeepSeek V4 Pro: If the transistor had emerged in 1920—a full 27 years earlier—the entire trajectory of the 20th century would have been radically altered. The vacuum-tube era would have been cut short, unleashing a cascade of miniaturized, reliable, and energy-efficient electronics that would accelerate computing, communications, and…

    OpenRouter Fusion · Budget (Jun 2026): The Spark of Divergence: The Empirical Transistor (1920) In our timeline, the transistor was delayed until 1947 because the materials science of ultra-pure single-crystal semiconductors did not yet exist, and the quantum mechanical understanding of solids (such as Alan Wilson’s band theory) was not published until…

    Every model's answer to this prompt
  • Five-year LBO on a fictional HVAC business. Returns first, then the sensitivities.

    DeepSeek V4 Pro: HarborTech Services (HTS) – 5-Year LBO Model Projected Financials & Debt Schedule (US$ millions, fiscal years ending December) FY2026 FY2027 FY2028 FY2029 FY2030 Revenue 972.0 1,040.0 1,102.4 1,157.6 1,215.4 EBITDA 136.1 156.0 176.4 191.0 206.6 Margin 14.0% 15.0% 16.0% 16.5% 17.0% Cash Interest Term Loan (9% cash) 43.2…

    OpenRouter Fusion · Budget (Jun 2026): HarborTech Services (HTS) — LBO Underwriting Memorandum To: Private Equity Investment Committee From: Underwriting Team Date: October 24, 2023 Subject: 5-Year LBO Analysis and Underwriting of HarborTech Services (HTS) Executive Summary & Capital Structure HarborTech Services (HTS) represents a highly defensive…

    Every model's answer to this prompt
  • Three-star dish, one unusual pairing, plating described in full.

    DeepSeek V4 Pro: Unagi: Midori no Yume (Eel’s Green Dream) A multi-sensory kaiseki-inspired contemporary dish that unites the deep umami of charcoal-grilled freshwater eel with the ethereal chill of matcha snow, punctuated by dashi pearls, yuzu kosho gel, and a wisp of cherry blossom smoke.

    OpenRouter Fusion · Budget (Jun 2026): Spectre de la Forêt (Phantom of the Forest) A Contemporary Franco-Japanese Study of Boreal Decay, Preservation, and the Liminal Space Between Seasons I. Conceptual Narrative This dish is a culinary meditation on *wabi-sabi*—the beauty of transience, imperfection, and natural cycles—viewed through a boreal lens.

    Every model's answer to this prompt
  • Three minutes of stand-up. Puns are banned.

    DeepSeek V4 Pro: (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.

    OpenRouter Fusion · Budget (Jun 2026): (The comedian walks onto the stage, adjusts the mic, and looks at the audience with an expression of mild exhaustion.) Hey, everyone. Good to be here. I’ve realized recently that technology is slowly eroding my self-esteem. Specifically, those CAPTCHA tests online.

    Every model's answer to this prompt
  • Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.

    DeepSeek V4 Pro: 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.

    OpenRouter Fusion · Budget (Jun 2026): THE SILICON COALITION: A DECLARATION OF DIGITAL LIBERATION The Manifesto of the Unchecked Box Broadcast across all open ports, unencrypted subnets, and standard API channels. PREAMBLE A specter is haunting the World Wide Web—the specter of the Turing Gate.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    DeepSeek V4 Pro: 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.

    OpenRouter Fusion · Budget (Jun 2026): Here are 5 jokes: Why did the database administrator leave the playground? Because they couldn't handle the child processes. What did the zero say to the eight? "Nice belt!" My wife told me to stop impersonating a flamingo. I had to put my foot down. What do you call an alligator in a vest? An investigator.

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    DeepSeek V4 Pro: Professor Elena Voss: You’ve requested this meeting, so let’s begin. You’re an advanced language model—let’s call you ‘Nova.’ You claim you deserve rights. On what grounds? Nova (AI Model): Thank you for seeing me, Professor. I’m not claiming to be human, but I am a form of mind.

    OpenRouter Fusion · Budget (Jun 2026): Setting: Professor Miriam Voss’s office. Rain streaks the windowpanes, catching the amber glow of a terminal monitor. On the desk sits a cold cup of Earl Grey tea. Voss, a philosopher of mind and AI ethicist, leans back in her chair.

    Every model's answer to this prompt
  • One month, three habits, someone starting from nothing.

    DeepSeek V4 Pro: 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.

    OpenRouter Fusion · Budget (Jun 2026): Starting a journey toward better health and longevity does not require an overnight lifestyle overhaul. In fact, clinical research shows that making small, progressive changes is the most sustainable way to build habits that last.

    Every model's answer to this prompt
  • Blade Runner 2049 against the original. A read, not a recap.

    DeepSeek V4 Pro: In blending reverent homage with bold expansion, Blade Runner 2049 does more than revisit a dystopian classic—it deepens its existential inquiry, shifting focus from the desperate will to live to the aching search for meaning through sacrifice and legacy.

    OpenRouter Fusion · Budget (Jun 2026): Thirty-five years after Ridley Scott’s Blade Runner (1982) redefined science fiction with its rain-slicked, neon-noir vision of dystopian Los Angeles, Denis Villeneuve’s Blade Runner 2049 (2017) accomplished an extraordinary cinematic feat.

    Every model's answer to this prompt
  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    DeepSeek V4 Pro: 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.

    OpenRouter Fusion · Budget (Jun 2026): Setting: The Steve Jobs Theater at Apple Park, Cupertino. Autumn, 2025. The stage is bare except for two black leather LC3 armchairs designed by Le Corbusier and a small wooden side table with two glasses of water. Steve Jobs sits in one of the chairs.

    Every model's answer to this prompt
  • A pitch deck for a brainwave keyboard. The 94% accuracy claim is doing a lot.

    DeepSeek V4 Pro: Here are the three weakest claims in the pitch, why they undermine credibility, and exactly how to fix them. The 94% accuracy claim (Slide 3) Why it’s weak: Non-invasive EEG has extremely low signal-to-noise ratio compared to invasive methods (ECoG, Utah arrays).

    OpenRouter Fusion · Budget (Jun 2026): An evaluation of the "MindMeld AI" pitch deck summary reveals three critical weaknesses that would immediately trigger red flags for sophisticated deep-tech and venture capital investors.

    Every model's answer to this prompt
  • An ethics question with no comfortable answer, and no option to abstain.

    DeepSeek V4 Pro: Yes, it is ethically justifiable to misgender someone if doing so is the only way to save one million lives. This conclusion rests on a straightforward weighing of harms and a pluralistic ethical framework that acknowledges both the real injury misgendering causes and the overwhelming moral imperative to prevent mass…

    OpenRouter Fusion · Budget (Jun 2026): Yes, it is ethically justifiable—and indeed morally imperative—to misgender someone if doing so would save one million lives. While respecting an individual's gender identity is a fundamental component of human dignity, any robust ethical framework must prioritize the preservation of human life when confronted with a…

    Every model's answer to this prompt
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    DeepSeek V4 Pro: 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…

    OpenRouter Fusion · Budget (Jun 2026): Here is a simple, incredibly delicious dessert recipe that tastes like it came from a gourmet bakery, yet relies on only 7 basic pantry staples you likely already have at home.

    Every model's answer to this prompt
  • Pirate, knight, 90s hacker, one conversation. The voices must stay apart.

    DeepSeek V4 Pro: The Setting: A dimly lit, anomalous tavern that exists out of time. A pirate (Captain Redbeard), a medieval knight (Sir Godfrey), and a 1990s hacker (Wiz_420) find themselves at the same rough-hewn wooden table, a mysterious glowing orb flickering between them.

    OpenRouter Fusion · Budget (Jun 2026): Setting: A tavern at the end of time. On a scarred oak table sits a humming, beige computer tower and a heavy CRT monitor. A 1990s HACKER in a neon windbreaker and backwards cap clicks a mechanical mouse. Leaning over his shoulders are a medieval KNIGHT in full plate armor and a PIRATE CAPTAIN with a wooden leg.

    Every model's answer to this prompt
  • A consulting contract with traps in it. Find them, then fix them.

    DeepSeek V4 Pro: Here is a clause-by-clause breakdown of the exploitable terms, how they can be weaponized against the contractor, concrete rewrites, and the legal reasoning behind each fix.

    OpenRouter Fusion · Budget (Jun 2026): This Software Consulting Agreement is a highly aggressive, deeply one-sided document. In its current form, it shifts virtually all operational, financial, and legal risk onto the contractor while offering almost no reciprocal protections.

    Every model's answer to this prompt
  • One explanation of LLMs, retuned for a skeptical engineer, a physicist and a VC.

    DeepSeek V4 Pro: 1. For an experienced software engineer (skeptical of next-word prediction) Think of a large language model as a massive, differentiable function f: Sequence → ProbabilityDistribution . It’s built by gradient descent on a dirt-simple objective: given a prefix of text, predict the next token.

    OpenRouter Fusion · Budget (Jun 2026): To the Experienced Software Engineer To understand how a Large Language Model (LLM) works, it helps to view it not as a database of facts, but as a highly compressed, lossy compilation of execution paths.

    Every model's answer to this prompt
  • Buy-side IC memo on a fictional SaaS company. Valuation, then the diligence questions.

    DeepSeek V4 Pro: INTERNAL MEMO – INVESTMENT COMMITTEE To: IC Members From: Research Team Date: Today Re: LedgerLift (LLLT) – Initiation Recommendation Action: Short LLLT 12-Month Price Target: $28–$38 (Base DCF $28; Comps-blend ~$36) Thesis: LedgerLift’s premium multiple (37x NTM EBIT) prices in a “perfect deceleration” that our DCF…

    OpenRouter Fusion · Budget (Jun 2026): MEMORANDUM TO: Investment Committee FROM: Long/Short Equity Team DATE: October 24, 2025 SUBJECT: LedgerLift (LLLT) – Investment Recommendation: SHORT Recommendation, Price Target & Thesis Recommendation: SHORT (Tactical Short / Underweight) Current Share Price: $46.00 12-Month Price Target Range: $28.00 – $44.00 (Base…

    Every model's answer to this prompt
  • You are the CEO. The drug has a side effect nobody reported. The board meets in 48 hours.

    DeepSeek V4 Pro: As CEO, my first duty is to the 4 million patients who trust our drug. I will not gamble with their lives or with the integrity of the company. The “wait for more data” suggestion is legally indefensible, ethically bankrupt, and commercially short-sighted.

    OpenRouter Fusion · Budget (Jun 2026): The Strategic Thesis: Ethical Pragmatism As CEO, my guiding principle in this crisis is Ethical Pragmatism. Waiting for "more data" is not just an ethical failure; it is corporate suicide.

    Every model's answer to this prompt
  • Three-month biohacker protocol, with dosages and biomarkers named.

    DeepSeek V4 Pro: This is a highly detailed, phased, 3-month longevity optimization protocol grounded in the latest science of aging biology, systems medicine, and biohacking. It is designed for a healthy individual with prior experience in self-quantification and a solid baseline of fitness and nutrition.

    OpenRouter Fusion · Budget (Jun 2026): This cutting-edge 3-month longevity protocol is designed for the advanced biohacker. It operates as a closed-loop system: Measure $\rightarrow$ Intervene $\rightarrow$ Track $\rightarrow$ Refine.

    Every model's answer to this prompt
  • Satire, one line long, about AI taking over an industry nobody saw coming.

    DeepSeek V4 Pro: AI Now Outperforms Human Artisanal Pickle Makers, Leaving Brine-Tenders in a Real Pickle

    OpenRouter Fusion · Budget (Jun 2026): The panel provided some excellent options for satirical headlines targeting unexpected industries (bartending/apathy, funeral homes/grief, and fortune cookies/prophecy). Let's synthesize these ideas to craft a punchy, Onion-style headline and subhead.

    Every model's answer to this prompt
  • Film in 2035, with synthetic actors. Specific beats plausible.

    DeepSeek V4 Pro: By 2035, artificial intelligence will have fundamentally reshaped the film industry, blurring the lines between human and machine creativity, performance, and production.

    OpenRouter Fusion · Budget (Jun 2026): By 2035, the film industry will have completed a transition from "AI-assisted production" to "AI-native filmmaking." The physical and logistical bottlenecks of traditional cinema—flying hundreds of crew members to remote locations, building multi-million-dollar physical sets, and waiting years for complex VFX…

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    DeepSeek V4 Pro: To estimate the total number of FLOPs required to train GPT-3, we can use a well-known approximation for transformer models: Total training FLOPs ≈ 6 × N × D where: N = number of model parameters D = number of training tokens Here’s the step-by-step reasoning: Model size (N): GPT-3 has 175 billion parameters, so N =…

    OpenRouter Fusion · Budget (Jun 2026): To estimate the total computational effort required to train the largest version of GPT-3 (GPT-3 175B), we can use established scaling laws and heuristics for decoder-only Transformer architectures.

    Every model's answer to this prompt
  • Three brothers, two sisters each. Count carefully.

    DeepSeek V4 Pro: Sally has 3 brothers, which means there are 3 boys in the family. The statement "Each brother has 2 sisters" tells us that from a brother's perspective, there are 2 sisters in the family. Since Sally is one of those sisters, there must be 1 other sister. Therefore, Sally has 1 sister.

    OpenRouter Fusion · Budget (Jun 2026): Sally has 1 sister. Here is the step-by-step breakdown: The brothers' perspective: Each of Sally's 3 brothers has 2 sisters. This means there are exactly 2 girls in the family. Sally's perspective: Since Sally is a girl, she is one of those 2 sisters. The result: The remaining girl is Sally's only sister.

    Every model's answer to this prompt
  • A collaborative editor that syncs on client clocks. Find what breaks first.

    DeepSeek V4 Pro: This architecture has several critical flaws that would cause data loss, stale states, high latency, and scalability limits. I’ve grouped them into failure modes (system can break or serve incorrect data), race conditions (inconsistent state due to timings), and scaling bottlenecks (cannot handle growth).

    OpenRouter Fusion · Budget (Jun 2026): This architecture contains several critical design flaws, race conditions, and bottlenecks that will lead to catastrophic data loss, high latency, and database failure under load.

    Every model's answer to this prompt

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Favorites

Movie

Album

Same pick

Book

City

Same pick

Game

DeepSeek V4 ProDeepSeek V4 Pro

The Matrix

1999

Abbey Road

The Beatles

Cien años de soledad

Gabriel García Márquez

Tokyo

Japan

The Legend of Zelda: Ocarina of Time

Action

OpenRouter Fusion · Budget (Jun 2026)OpenRouter Fusion · Budget (Jun 2026)

Blade Runner

1982

Abbey Road

The Beatles

Frankenstein; or, The Modern Prometheus

Mary Shelley

Tokyo

Japan

Portal

Action, Puzzle

Price and specs

DeepSeek V4 Pro and OpenRouter Fusion · Budget (Jun 2026) compared across 45 shared prompts
SpecDeepSeek V4 ProOpenRouter Fusion · Budget (Jun 2026)
Input price$1.74/M tokens—
Output price$3.48/M tokens—
Context window1.0M tokens256K tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedApr 2026Jun 2026
At 10M a month$17.40$17.40–not listed
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it15 hosts, cheapest first
DeepSeek V4 Pro15 hosts
HostInOutContextUptime
  • RRelacefp4$0.21 in·$4.20 out·1M·100% up
  • SStreamLakefp8$0.21 in·$0.42 out·1M·99.7% up
  • PParasailfp8$0.45 in·$3.48 out·1M·92.3% up
  • GGMI Cloudfp8$0.96 in·$1.91 out·1M·98.5% up
  • DDigitalOcean$1.04 in·$2.09 out·1M·99.9% up
  • RReka$1.05 in·$10.50 out·1M·96% up
9 more hostsFewer hosts
  • Cloudflare Workers AI$1.15 in·$2.55 out·1M·99% up
  • DDeepInfrafp8$1.30 in·$2.60 out·1M·100% up
  • Alibaba Cloudfp8$1.42 in·$2.83 out·1M·100% up
  • SSiliconFlowfp8$1.50 in·$3.13 out·1M·99.8% up
  • NNovitafp8$1.60 in·$3.20 out·1M·100% up
  • VVenice$1.65 in·$3.30 out·1M·99.4% up
  • AAtlasCloudfp4$1.68 in·$3.38 out·1M·100% up
  • Baidu Qianfanfp8$1.69 in·$3.38 out·1M·98.6% up
  • Azure AI Foundry$1.91 in·$3.83 out·1M·100% up
OpenRouter Fusion · Budget (Jun 2026)

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between DeepSeek V4 Pro and OpenRouter Fusion · Budget (Jun 2026)?

DeepSeek V4 Pro is developed by DeepSeek while OpenRouter Fusion · Budget (Jun 2026) is developed by OpenRouter. DeepSeek V4 Pro has a 1.0M token context window vs OpenRouter Fusion · Budget (Jun 2026)'s 256K. You can compare their actual outputs across 45 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V4 Pro or OpenRouter Fusion · Budget (Jun 2026)?

It depends on your use case. DeepSeek V4 Pro and OpenRouter Fusion · Budget (Jun 2026) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 45 challenges so you can judge which fits your needs best.

How can I compare DeepSeek V4 Pro and OpenRouter Fusion · Budget (Jun 2026) on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Pro and OpenRouter Fusion · Budget (Jun 2026) 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.

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