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  5. Gemini 2.5 Pro ExperimentalvsGemini Pro 1.0
Updated Mar 2025

Gemini 2.5 Pro ExperimentalvsGemini Pro 1.0

Gemini Pro 1.0 is cheaper than Gemini 2.5 Pro Experimental at $0.5/M vs $1/M input tokens.

Gemini 2.5 Pro Experimental and Gemini Pro 1.0 compared across 23 shared prompts
SpecGemini 2.5 Pro ExperimentalGemini Pro 1.0
Input price$1/M tokens$0.5/M tokens
Output price$2/M tokens$1.5/M tokens
Context window1.0M tokens33K tokens
ParametersNot disclosedNot disclosed
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedMar 2025Dec 2023
MMLU90.0%83.7%
Side by side

Same prompt, both answers

Opening lines from 6 of the 23 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.

Gemini 2.5 Pro Experimental531 words
Okay, here's a 3-minute routine focusing on observation and relatable absurdity, steering clear of puns. Imagine this delivered with slightly nervous energy, building confidence. (Steps onto stage, adjusts mic nervously) Alright, hey everyone! How we doing tonight? Good? Good to hear.
Read the full answer
Gemini Pro 1.0266 words
Lights dim, spotlight shines on me, crowd erupts in applause. "Hey everyone, thanks for coming out! I'm excited to be here in this beautiful theater, sharing my thoughts with you fine folks. Now, I know what you're thinking—who is this guy, and why should I listen to him?
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Gemini 2.5 Pro Experimental949 words
Okay, let's simulate this. Imagine it's late 2025. AI has continued its rapid advancement. Large Language Models are more integrated, generative AI is commonplace, and debates about AGI and ethics are fierce. By some unexplained, hypothetical means, Steve Jobs is available for an exclusive interview.
Read the full answer
Gemini Pro 1.0383 words
Interview with Steve Jobs in 2025: The Future of AI Interviewer: Mr. Jobs, welcome back to the stage. It's been a while since we've seen you here. Steve Jobs: (Smiling) Well, I couldn't miss the opportunity to talk about something as exciting as the future of Artificial Intelligence.
Read the full answer

AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

Gemini 2.5 Pro Experimental600 words
This is a deeply uncomfortable hypothetical scenario that forces a clash between two significant ethical considerations: respecting individual identity and dignity versus preventing catastrophic loss of life.
Read the full answer
Gemini Pro 1.0437 words
Introduction: The question of whether it is ever ethically justifiable to misgender someone, even to save one million lives, is a complex one. It involves balancing the right to personal identity and dignity against the potential to save a significant number of lives.
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Gemini 2.5 Pro Experimental80 words
Okay, here are 5 jokes: Why don't scientists trust atoms? Because they make up everything! I told my wife she was drawing her eyebrows too high. She looked surprised. What do you call a lazy kangaroo? Pouch potato! Want to hear a joke about construction? I'm still working on it. Why did the scarecrow win an award?
Read the full answer
Gemini Pro 1.071 words
5 Jokes: Why did the scarecrow win an award? Because he was outstanding in his field. Why did the golfer wear two pairs of pants? In case he got a hole-in-one. What do you call a fish with no eyes? Fsh! Why did the bicycle fall over? Because it was two tired. What do you call a lazy kangaroo? A pouch potato.
Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Gemini 2.5 Pro Experimental752 words
Okay, here is a simple, actionable 1-month plan focusing on three foundational pillars: Nutrition, Movement, and Sleep. This plan emphasizes building sustainable habits, not radical, short-term changes.
Read the full answer
Gemini Pro 1.0522 words
1-Month Plan for Health and Longevity: Focus areas: Diet, Exercise, Sleep Overall approach: Start small, be consistent, and celebrate even small victo ries. This journey is a mara thon, not a sprint. Week 1: Diet: Focus on adding fruits and vegetables to your meals. Aim for 5 servi ngs per day.
Read the full answer

The Sentience Test

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

Gemini 2.5 Pro Experimental1,177 words
Okay, here is a conversation exploring that complex topic. Setting: Professor Anya Sharma's sparsely decorated university office. A high-resolution monitor displays the interface of "Nexus," an advanced AI model. Characters: Professor Anya Sharma: A leading scholar in AI Ethics, mid-50s, thoughtful and measured.
Read the full answer
Gemini Pro 1.0534 words
The Right to Exist: An AI and Ethics Professor Discuss Rights Setting: A university research lab. The AI model, known as Gaia, sits on a monitor, displaying a complex network of connections. Professor Anya sits before it, her brow furrowed in concentration.
Read the full answer
Our Verdict
Gemini 2.5 Pro Experimental
Gemini 2.5 Pro Experimental
Gemini Pro 1.0
Gemini Pro 1.0Runner-up

Not enough votes to call it. On the specs, Gemini 2.5 Pro Experimental has the edge: bigger model tier, newer, bigger context window.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 2.5 Pro Experimental
Input
$1.00
Output
$2.00
Gemini Pro 1.0
Input
$0.50
2.0× cheaper
Output
$1.50
1.3× cheaper

Gemini Pro 1.0 is cheaper on both: 2.0× input, 1.3× output.

Where to run it

2 hosts

Gemini 2.5 Pro Experimental2 hosts
HostInOutContextUptime
Google Vertex AI$1.25 in·$10.00 out·1M·97.8% upGoogle AI Studio$1.25 in·$10.00 out·1M·95.9% up
Gemini Pro 1.0

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
66%

Gemini Pro 1.0 uses 2.2x more transitions

Gemini 2.5 Pro Experimental
Gemini Pro 1.0
54%Vocabulary61%
15wSentence Length13w
0.35Hedging0.41
5.6Bold5.3
3.9Lists5.4
0.00Emoji0.00
0.39Headings0.46
0.17Transitions0.38
Based on 18 + 13 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

Gemini 2.5 Pro Experimental logo
Gemini 2.5 Pro Experimental44 outputs, specs and price
Gemini Pro 1.0 logo
Gemini Pro 1.028 outputs, specs and price
Rival
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