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  5. DeepSeek V4 ProvsGemini 2.5 Flash Preview 05-20
Updated Apr 2026

DeepSeek V4 ProvsGemini 2.5 Flash Preview 05-20

Gemini 2.5 Flash Preview 05-20 is cheaper than DeepSeek V4 Pro at $0.15/M vs $1.74/M input tokens.

DeepSeek V4 Pro and Gemini 2.5 Flash Preview 05-20 compared across 11 shared prompts
SpecDeepSeek V4 ProGemini 2.5 Flash Preview 05-20
Input price$1.74/M tokens$0.15/M tokens
Output price$3.48/M tokens$0.6/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedApr 2026May 2025
Side by side

Same prompt, both answers

Opening lines from 2 of the 11 prompts both answered. Formatting stripped, words untouched.

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

DeepSeek V4 Pro493 words
(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.
Read the full answer
Gemini 2.5 Flash Preview 05-20569 words
Alright, alright, settle down you magnificent collection of human beings! You look good tonight. Not just good, but… like you've all collectively decided to nail the 'I'm here to laugh and avoid talking about my Monday' look. And I respect that. Seriously though, it's great to be back on stage. I'm living the dream.
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

DeepSeek V4 Pro77 words
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.
Read the full answer
Gemini 2.5 Flash Preview 05-2079 words
Here are 5 jokes for you: Why don't scientists trust atoms? Because they make up everything! What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field! I told my wife she was drawing her eyebrows too high. She looked surprised.
Read the full answer
Our Verdict
DeepSeek V4 Pro
DeepSeek V4 Pro
Gemini 2.5 Flash Preview 05-20
Gemini 2.5 Flash Preview 05-20Runner-up

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

Gemini 2.5 Flash Preview 05-20 costs 5.8x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek V4 Pro
Input
$1.74
Output
$3.48
Gemini 2.5 Flash Preview 05-20
Input
$0.15
12× cheaper
Output
$0.60
5.8× cheaper

Gemini 2.5 Flash Preview 05-20 is cheaper on both: 12× input, 5.8× output.

Where to run it

15 hosts, cheapest first

DeepSeek V4 Pro15 hosts
HostInOutContextUptime
SStreamLakefp8$0.96 in·$1.91 out·1M·99.3% upDDigitalOcean$1.04 in·$2.09 out·1M·100% upCloudflare Workers AI$1.15 in·$2.55 out·1M·97.8% upDDeepInfrafp8$1.30 in·$2.60 out·1M·99.4% upAlibaba Cloudfp8$1.42 in·$2.83 out·1M·100% upSSiliconFlowfp8$1.50 in·$3.13 out·1M·99.4% up
9 more hostsFewer hosts
NNovitafp8$1.60 in·$3.20 out·1M·99.9% upVVenice$1.65 in·$3.30 out·1M·96.4% upAAtlasCloudfp4$1.68 in·$3.38 out·1M·99% upBaidu Qianfanfp8$1.69 in·$3.38 out·1M·99.2% upBBasetenfp4$1.74 in·$3.48 out·1M·99.4% upPParasailfp8$1.74 in·$3.48 out·1M·99.5% upAzure AI Foundry$1.91 in·$3.83 out·1M·98.9% upNNextBitfp8$2.80 in·$5.50 out·1M·99.9% upGGMI Cloudfp8degraded$0.96 in·$1.91 out·1M·97.4% up
Gemini 2.5 Flash Preview 05-20

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
56%

DeepSeek V4 Pro uses 3.5x more emoji

DeepSeek V4 Pro
Gemini 2.5 Flash Preview 05-20
57%Vocabulary69%
18wSentence Length10w
0.52Hedging0.26
3.3Bold1.1
2.3Lists5.5
0.04Emoji0.00
0.45Headings0.00
0.15Transitions0.00
Based on 27 + 2 text responses
Research

What we learned reading every model

FAQ

Common questions

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Same lab, same size, long tail

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Model pages

DeepSeek V4 Pro logo
DeepSeek V4 Pro58 outputs, specs and price
Gemini 2.5 Flash Preview 05-20 logo
Gemini 2.5 Flash Preview 05-2011 outputs, specs and price
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