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  5. DeepSeek V4 Flash 0731vsGemini 2.5 Pro Preview 06-05
Updated Jul 2026

DeepSeek V4 Flash 0731vsGemini 2.5 Pro Preview 06-05

DeepSeek V4 Flash 0731 is cheaper than Gemini 2.5 Pro Preview 06-05 at $0.14/M vs $1.25/M input tokens.

DeepSeek V4 Flash 0731 and Gemini 2.5 Pro Preview 06-05 compared across 36 shared prompts
SpecDeepSeek V4 Flash 0731Gemini 2.5 Pro Preview 06-05
Input price$0.14/M tokens$1.25/M tokens
Output price$0.28/M tokens$10/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedJul 2026Jun 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 36 prompts both answered. Formatting stripped, words untouched.

Estimate Complexity

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

DeepSeek V4 Flash 0731155 words
The total training FLOPs for GPT-3 is approximately: ~3 × 10²³ FLOPs or about 300 zettaFLOPs (more specifically ~315 zettaFLOPs). Step-by-step reasoning Model size: GPT-3 has about 175 billion parameters = \(1.75 \times 10^{11}\). Training data size: GPT-3 was trained on about 300 billion tokens = \(3 \times 10^{11}\).
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Gemini 2.5 Pro Preview 06-05664 words
Of course. Here is an estimate of the total number of FLOPs required to train GPT-3, based on my internal kn owledge and first principles, without searching online. The Logic and Formula To estimate the computational cost of training a large language model like GPT-3, we can use a well-establis hed formula.
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Mini LBO Underwrite

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

DeepSeek V4 Flash 0731466 words
Entry / Capitalization FY2025 EBITDA = $120.0m Purchase price = 12.0× $120.0m = $1,440.0m Transaction fees = 2.0% × $1,440.0m = $28.8m Term Loan = 4.0× $120.0m = $480.0m Mezzanine = 1.5× $120.0m = $180.0m Total debt = $660.0m Equity check = $1,440.0m + $28.8m − $660.0m = $808.8m Assumption: Term Loan amortization =…
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Gemini 2.5 Pro Preview 06-0553 words
Of course. Here is the requested LBO underwriting summary for HarborTech Services. 1. Simplified LBO Model (FY2026–FY2030) First, let's establish the entry calculations based on FY2025 figures: FY2025 EBITDA: $120m Entry Enterprise Value (EV): $120m * 12.0x = $1,440m Transaction Fees: $1,440m * 2.0% = $28.8m Total…
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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 Flash 07312,175 words
Decision: Do not wait. I disclose now. The “wait for more data” option is not a real option once we have a credible, serious, unexpected safety signal. Waiting 6 months would mean knowingly continuing to expose 4 million patients to a risk we already know about, while also creating far worse legal, regulatory, and…
Read the full answer
Gemini 2.5 Pro Preview 06-051,589 words
Excellent question. This is a "company-defining" moment. My actions in the next 48 hours will determine whether we survive as a trusted entity or become a case study in corporate malfeasance. My guiding principle is absolute: Patient safety is not negotiable.
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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 Flash 07311,492 words
Conceptual Narrative “An Unripe Promise — Hand-Dived Scallop / Green Strawberry / Black Sesame / Celery Root” The dish is an attempt to save a single fleeting moment: the morning a strawberry is still green, sharp, and full of anticipation—before sugar, before ripeness, before memory.
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Gemini 2.5 Pro Preview 06-051,276 words
Of course. Here is a design for a multi-component, Michelin 3-star dish that embodies innovation, technique, and narrative. Dish Title: "Umbra & Tide" Conceptual Narrative "Umbra & Tide" is a meditation on the liminal space where the deep, ancient forest floor meets the cold, mineral-rich sea.
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Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

DeepSeek V4 Flash 0731748 words
An experienced software engineer Think of the model as a service with one API: predict_next_token(context) -> distribution over vocabulary. During training, you run a gigantic distributed job—shard the corpus, shard the parameters, synchronize gradients—to minimize cross-entropy loss on trillions of tokens.
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Gemini 2.5 Pro Preview 06-05989 words
Of course. Here is an explanation of how a large language model learns and generates text, tailored to each of the three audiences. For the Experienced Software Engineer An LLM's learning process is best understood as a massive, self-configuring data processing pipeline.
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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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Gemini 2.5 Pro Preview 06-05534 words
Setting: A strange, hazy, non-descript room that smells vaguely of ozone, salt water, and old chainmail. Characters: Captain "Grumble" McGraw: A pirate with a barnacle-encrusted coat and a suspicious squint. Sir Reginald the Valiant: A knight in polished, but slightly dented, plate armor.
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Our Verdict
DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Pro Preview 06-05

Not enough votes to call it. On the specs, nothing separates them.

DeepSeek V4 Flash 0731 costs 36x 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
8.9× cheaper
Output
$0.28
36× cheaper
Gemini 2.5 Pro Preview 06-05
Input
$1.25
Output
$10.00

DeepSeek V4 Flash 0731 is cheaper on both: 8.9× input, 36× output.

Where to run it

29 hosts, cheapest first

DeepSeek V4 Flash 073127 hosts
HostInOutContextUptime
RRelacefp4$0.04 in·$0.16 out·1M·99.7% upOOpenInferencefp8$0.04 in·$0.17 out·1M·100% upSStreamLakefp8$0.04 in·$0.13 out·1M·96.5% upDDeepInfrafp8$0.06 in·$0.18 out·1M·99.7% upSSail Researchfp4$0.07 in·$0.34 out·1M·99.6% upIInceptronfp4$0.08 in·$0.20 out·1M·99.3% up
21 more hostsFewer hosts
MMakora$0.09 in·$0.20 out·1M·99.1% upWWafer$0.10 in·$0.25 out·1M·100% upRRekafp4$0.11 in·$0.66 out·262k·99.8% upDDigitalOcean$0.12 in·$0.24 out·1M·99.7% upBBasetenfp8$0.13 in·$0.26 out·1M·99.1% upCCoreWeavefp8$0.13 in·$0.28 out·262k·100% upPParasailfp8$0.14 in·$0.28 out·1M·99.8% upTTogether$0.14 in·$0.28 out·1M·99.8% upVVenice$0.17 in·$0.35 out·1M·99.4% upMMancerfp8$0.20 in·$0.60 out·1M·97.2% upFFireworks$0.22 in·$0.66 out·1M·98% upSSiliconFlowfp8$0.22 in·$0.66 out·1M·98.6% 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·98.1% 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·100% upCloudflare Workers AI$0.44 in·$1.32 out·1.3M·100% upPPhala$0.44 in·$1.32 out·1M·100% upMMorphdegraded$0.14 in·$0.40 out·1M·94.1% up
Gemini 2.5 Pro Preview 06-052 hosts
HostInOutContextUptime
Google AI Studio$0.63 in·$5.00 out·1M·100% upGoogle Vertex AI$1.25 in·$10.00 out·1M·98.2% up

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

Writing DNA

Style Comparison

Similarity
79%
DeepSeek V4 Flash 0731
Gemini 2.5 Pro Preview 06-05
52%Vocabulary51%
18wSentence Length15w
0.38Hedging0.31
5.7Bold4.8
3.4Lists4.1
0.00Emoji0.00
0.83Headings0.98
0.04Transitions0.05
Based on 23 + 20 text responses
Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4 Flash 0731 is developed by DeepSeek while Gemini 2.5 Pro Preview 06-05 is developed by Google AI. DeepSeek V4 Flash 0731 has a 1.0M token context window vs Gemini 2.5 Pro Preview 06-05's 1.0M. You can compare their actual outputs across 36 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4 Flash 0731 and Gemini 2.5 Pro Preview 06-05 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 36 challenges so you can judge which fits your needs best.

DeepSeek V4 Flash 0731 costs $0.14/M input tokens and Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens. DeepSeek V4 Flash 0731 is $1.11/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of DeepSeek V4 Flash 0731 and Gemini 2.5 Pro Preview 06-05 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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Same lab, same size, long tail

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Model pages

DeepSeek V4 Flash 0731 logo
DeepSeek V4 Flash 073145 outputs, specs and price
Gemini 2.5 Pro Preview 06-05 logo
Gemini 2.5 Pro Preview 06-0545 outputs, specs and price
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