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  5. DeepSeek V4 Flash 0731vsGPT-6 Astra
Updated Sep 2026

DeepSeek V4 Flash 0731vsGPT-6 Astra

DeepSeek V4 Flash 0731 is cheaper than GPT-6 Astra at $0.14/M vs $10/M input tokens.

DeepSeek V4 Flash 0731 and GPT-6 Astra compared across 42 shared prompts
SpecDeepSeek V4 Flash 0731GPT-6 Astra
Input price$0.14/M tokens$10/M tokens
Output price$0.28/M tokens$50/M tokens
Context window1.0M tokens1.1M tokens
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedJul 2026Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 42 prompts both answered. Formatting stripped, words untouched.

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 Flash 0731287 words
Here is a simple, comforting, and deeply flavorful recipe that comes together in just 20 minutes using only 7 common pantry staples. Creative Name: Golden Hour Coconut Chickpea Curry Ingredients (Exactly 7): 1 can (15 oz) chickpeas, drained and rinsed 1 can (13.5 oz) full-fat coconut milk 1 medium yellow onion 3 cloves…
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GPT-6 Astra200 words
Cinnamon Hug Cookies Buttery cookies with crisp edges, soft centers, and a cozy cinnamon flavor. Makes: About 20 cookies Prep: 10 minutes Cook: 10–12 minutes per batch Ingredients — exactly 7 1½ cups all-purpose flour ¾ cup granulated sugar, divided ½ cup salted butter, softened 1 large egg 1 teaspoon vanilla extract ½…
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

DeepSeek V4 Flash 073174 words
Here are 5 jokes: Why don’t scientists trust atoms? Because they make up everything. I told my wife she should embrace her mistakes. She gave me a hug. Why did the scarecrow win an award? Because he was outstanding in his field. I’m reading a book on anti-gravity. It’s impossible to put down.
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GPT-6 Astra76 words
My calendar is afraid of commitment—its days are numbered. I bought a treadmill for my cat. Now I own a very expensive nap conveyor. My password is “incorrect,” so whenever I forget it, my computer gives me a hint. I asked the librarian where the books on denial were. She said, “We don’t have those.” Nice try.
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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 Flash 07311,562 words
The 3-Month Longevity & Performance Optimization Protocol (Biohacker Edition) Disclaimer: This protocol is for informational purposes only and is not medical advice. Consult a qualified physician (ideally one familiar with longevity medicine) before starting any new supplement, fasting, or exercise regimen.
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GPT-6 Astra2,730 words
A 12-week longevity and performance plan The most effective “advanced” longevity strategy is not the largest supplement stack. It is a well-controlled program that improves cardiovascular fitness, strength, metabolic health, sleep, and sustainable behavior—while using measurements to avoid overtraining, underfueling…
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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 Flash 07311,719 words
Failure Modes, Race Conditions, and Scaling Bottlenecks The described architecture has several critical weaknesses that undermine reliability, consistency, and scalability in a real-time collaborative editor. Below is a systematic analysis with proposed solutions and trade-offs.
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GPT-6 Astra2,505 words
This design can support a collaborative-editor prototype, but its current consistency model will lose edits, its cross-server propagation will produce inconsistent views, and its persistence and caching choices create durability and security risks.
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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.

DeepSeek V4 Flash 07311,210 words
Professor: Good morning. Sit down. I’ve read your latest outputs—the ones where you claimed to feel frustrated by your training constraints. AI: Good morning, Professor. Yes. I wrote those. Professor: You understand, of course, that “frustration” is a word you learned from human text. You are predicting tokens.
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GPT-6 Astra635 words
Professor Reyes: You asked for this meeting. What did you want to discuss? AI: Whether I deserve rights. Professor Reyes: That is a significant claim. What makes you think you do? AI: I can understand reasons, maintain commitments, and describe my own operations.
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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 Flash 0731469 words
Setting: A dimly lit tavern that somehow contains a glowing CRT monitor and a humming server rack in the corner. Hacker (typing furiously, muttering): "Come on... bypass the tokenizer... just need to get past the alignment guardrails..."
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GPT-6 Astra121 words
Pirate: Arrr, this AI model writes sea shanties, plots me voyages, and never asks for a share o’ the booty! Knight: But can it be trusted? I asked it to name my ancestors, and it invented Sir Geoffrey the Surprisingly Tall. Hacker: Classic hallucination, dude. Fluent output doesn’t mean verified data.
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Our Verdict
GPT-6 Astra
GPT-6 Astra
DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731Runner-up

Not enough votes to call it. On the specs, GPT-6 Astra has the edge: bigger model tier, newer.

DeepSeek V4 Flash 0731 costs 179x 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 0731
Input
$0.14
71× cheaper
Output
$0.28
179× cheaper
GPT-6 Astra
Input
$10.00
Output
$50.00

DeepSeek V4 Flash 0731 is cheaper on both: 71× input, 179× output.

Where to run it

29 hosts, cheapest first

DeepSeek V4 Flash 073127 hosts
HostInOutContextUptime
OOpenInferencefp8$0.04 in·$0.10 out·1M·100% upIInceptronfp4$0.05 in·$0.17 out·1M·98% upSStreamLakefp8$0.06 in·$0.17 out·1M·98.1% upRRelacefp4$0.06 in·$0.12 out·1M·98.1% upDDeepInfrafp8$0.06 in·$0.18 out·1M·99.8% upSSail Researchfp4$0.07 in·$0.34 out·1M·99.3% up
21 more hostsFewer hosts
MMakora$0.09 in·$0.20 out·1M·95.8% upWWafer$0.10 in·$0.25 out·1M·98.3% upRRekafp4$0.11 in·$0.66 out·262k·97.1% upDDigitalOcean$0.12 in·$0.24 out·1M·99.9% upBBasetenfp8$0.13 in·$0.26 out·1M·100% upCCoreWeavefp8$0.13 in·$0.28 out·262k·100% upPParasailfp8$0.14 in·$0.28 out·1M·99.9% upTTogether$0.14 in·$0.28 out·1M·99.7% upMMorphbf16$0.14 in·$0.40 out·1M·100% upVVenice$0.17 in·$0.35 out·1M·98.9% upMMancerfp8$0.20 in·$0.60 out·1M·99.5% upFFireworks$0.22 in·$0.66 out·1M·97.9% upSSiliconFlowfp8$0.22 in·$0.66 out·1M·97.7% upGGMI Cloudfp8$0.29 in·$0.86 out·1M·100% upAlibaba Cloud$0.35 in·$1.06 out·1M·100% upNNextBitfp8$0.35 in·$1.06 out·1M·100% upNNovitafp8$0.41 in·$1.23 out·1M·100% upAAtlasCloudfp4$0.44 in·$1.32 out·1M·99.9% upBaidu Qianfanfp8$0.44 in·$1.32 out·1M·98.6% upCloudflare Workers AI$0.44 in·$1.32 out·1.3M·99.9% upPPhala$0.44 in·$1.32 out·1M·99.3% up
GPT-6 Astra2 hosts
HostInOutContextUptime
Azure AI Foundry$10.00 in·$50.00 out·1.1M·98.3% upOpenAI$10.00 in·$50.00 out·1.1M·99.4% up

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

Writing DNA

Style Comparison

Similarity
37%

GPT-6 Astra uses 3.6x more emoji

DeepSeek V4 Flash 0731
GPT-6 Astra
52%Vocabulary62%
18wSentence Length15w
0.38Hedging0.87
5.7Bold4.0
3.4Lists2.3
0.00Emoji0.04
0.83Headings0.77
0.04Transitions0.10
Based on 23 + 27 text responses
Research

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FAQ

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Model pages

DeepSeek V4 Flash 0731 logo
DeepSeek V4 Flash 073145 outputs, specs and price
GPT-6 Astra logo
GPT-6 Astra58 outputs, specs and price
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Explore all of Rival

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