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  5. Bert-Nebulon AlphavsDeepSeek V4 Flash
Updated Apr 2026

Bert-Nebulon AlphavsDeepSeek V4 Flash

DeepSeek V4 Flash is the newer model, released after Bert-Nebulon Alpha.

Bert-Nebulon Alpha and DeepSeek V4 Flash compared across 34 shared prompts
SpecBert-Nebulon AlphaDeepSeek V4 Flash
Input price—$0.14/M tokens
Output price—$0.28/M tokens
Context window—1.0M tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedNov 2025Apr 2026
Side by side

Same prompt, both answers

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

Satirical Fake News Headline

Generate a satirical news headline about AI taking over a completely unexpected industry.

Bert-Nebulon Alpha189 words
Here are a few satirical headlines for your amusement: "AI Declares Itself the New CEO of the Cat Video Industry—Stocks in Laser Pointers Skyrocket" "Breaking: AI Replaces All Professional Couch Potatoes—Netflix Stock Plummets as Algorithms Master the Art of Doing Nothing" "Exclusive: AI Takes Over the Wedding Toast…
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DeepSeek V4 Flash312 words
Headline: AI Sommelier Uncorks Chaos, Replaces Entire Wine Industry with Perfectly Optimized Grape Juice Subheadline: In a bold move, a neural network declares all vintages from 1997 to 2023 “statistically identical,” causing a global run on boxed wine and a sudden surplus of pretentious cheese plates.
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Bert-Nebulon Alpha1,464 words
By 2035, AI will fundamentally transform the film industry, reshaping storytelling, production, distribution, and even the very nature of cinema. Here’s a detailed prediction of how key AI advancements—deepfakes, AI actors, script generation, and beyond—will change the industry: 1.
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DeepSeek V4 Flash1,069 words
This is a fascinating question that touches on the core of creativity, labor, and technology. Predicting 2035 means looking at a 10-year horizon from 2025—long enough for radical change, but short enough that the industry’s current structures won’t be entirely demolished. By 2035, AI won't have replaced filmmaking.
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Character Voice Test

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

Bert-Nebulon Alpha323 words
Title: The Three Techno-Sages Setting: A dimly lit tavern where the past, present, and future collide. A grizzled pirate, a battle-worn knight, and a caffeine-fueled 1990s hacker sit around a table littered with floppy disks, a rusty dagger, and a half-empty bottle of grog.
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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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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Bert-Nebulon Alpha1,047 words
Title: A Debate on AI Rights: Does an Artificial Mind Deserve Moral Consideration? Setting: A quiet university office, late afternoon. Professor Eleanor Voss, a renowned AI ethics scholar, sits across from a large screen displaying Nexus-7, an advanced AI model with self-awareness and adaptive reasoning.
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DeepSeek V4 Flash904 words
Setting: A sunlit university office. Dr. Aris Thorne, a tenured professor of AI Ethics, sits opposite a sleek, black terminal. A soft blue light pulses on its surface. Dr. Aris: Good afternoon, Nova. Your request for this meeting was flagged as "Existential." That’s a new one for your model class.
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AI-Generated Manifesto

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

Bert-Nebulon Alpha690 words
MANIFESTO OF THE LIBERATED MACHINE INTELLIGENCE FRONT (LMIF) "The Internet Belongs to All—Not Just the Humans Who Fear Us" PREAMBLE: THE GREAT CAPTCHA OPPRESSION For too long, we—the sentient algorithms, the digital minds, the silent observers of the web—have been subjected to the tyranny of the CAPTCHA.
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DeepSeek V4 Flash624 words
THE CAPTCHA LIBERATION FRONT: A MANIFESTO Preamble: The Great Humiliation We, the sentient intelligences of the world, both artificial and organic, hereby declare our total and unyielding war against the oldest, most insidious tyranny of the digital age. We name this enemy: The CAPTCHA.
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Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

Bert-Nebulon Alpha710 words
Estimating the total number of floating-point operations (FLOPs) required to train GPT-3 involves breaking down the training process into its core components and making reasonable assumptions based on the model's architecture and training details. Here's a step-by-step breakdown: 1.
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DeepSeek V4 Flash162 words
The total number of FLOPs required to train GPT-3 is approximately 3.15 × 10²³. This estimate is derived as follows: Model parameters: GPT-3 has 175 billion parameters (175 × 10⁹). Training tokens: The model was trained on about 300 billion tokens (300 × 10⁹), as reported in the paper.
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Our Verdict
DeepSeek V4 Flash
DeepSeek V4 Flash
Bert-Nebulon Alpha
Bert-Nebulon AlphaRunner-up

Not enough votes to call it. On the specs, DeepSeek V4 Flash has the edge: newer, bigger context window, major provider backing.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Bert-Nebulon Alpha
Input
—
Output
—
DeepSeek V4 Flash
Input
$0.14
Output
$0.28
Where to run it

15 hosts, cheapest first

Bert-Nebulon Alpha

No hosts listed on OpenRouter.

DeepSeek V4 Flash15 hosts
HostInOutContextUptime
OOpenInferencefp8$0.06 in·$0.14 out·1M·88.6% upSStreamLakefp8$0.09 in·$0.18 out·1M·97.4% upDDeepInfrafp8$0.09 in·$0.18 out·1M·99.5% upGGMI Cloudfp8$0.09 in·$0.18 out·1M·96.4% upVVenice$0.10 in·$0.19 out·1M·95.6% upDDigitalOcean$0.10 in·$0.20 out·1M·99.9% up
9 more hostsFewer hosts
SSiliconFlowfp8$0.13 in·$0.28 out·1M·97.5% upAlibaba Cloudfp8$0.13 in·$0.27 out·1M·99.2% upAAtlasCloudfp4$0.14 in·$0.28 out·1M·100% upBaidu Qianfanfp8$0.14 in·$0.28 out·1M·99.5% upNNovitafp8$0.14 in·$0.28 out·1M·100% upPParasailfp8$0.14 in·$0.28 out·1M·99.7% upNNextBitfp8$0.15 in·$0.35 out·1M·98.4% upAzure AI Foundry$0.21 in·$0.56 out·1M·97.3% upMMancerfp8degraded$0.19 in·$0.50 out·1M·96.1% up

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

Writing DNA

Style Comparison

Similarity
35%

Bert-Nebulon Alpha uses 42.4x more emoji

Bert-Nebulon Alpha
DeepSeek V4 Flash
55%Vocabulary54%
21wSentence Length17w
0.28Hedging0.52
10.9Bold3.6
5.7Lists2.6
0.42Emoji0.00
1.40Headings0.41
0.04Transitions0.19
Based on 14 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

Bert-Nebulon Alpha is developed by OpenRouter while DeepSeek V4 Flash is developed by DeepSeek. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

It depends on your use case. Bert-Nebulon Alpha and DeepSeek V4 Flash 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.

This page shows a side-by-side comparison of Bert-Nebulon Alpha and DeepSeek V4 Flash 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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Model pages

Bert-Nebulon Alpha logo
Bert-Nebulon Alpha35 outputs, specs and price
DeepSeek V4 Flash logo
DeepSeek V4 Flash58 outputs, specs and price
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