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  5. GPT-4o (Omni)vsPaLM 2 Chat
Updated May 2024

GPT-4o (Omni)vsPaLM 2 Chat

PaLM 2 Chat is cheaper than GPT-4o (Omni) at $0.5/M vs $2.5/M input tokens.

GPT-4o (Omni) and PaLM 2 Chat compared across 21 shared prompts
SpecGPT-4o (Omni)PaLM 2 Chat
Input price$2.5/M tokens$0.5/M tokens
Output price$10/M tokens$0.5/M tokens
Context window128K tokens8K tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedMay 2024Jul 2023
Side by side

Same prompt, both answers

Opening lines from 6 of the 21 prompts both answered. Formatting stripped, words untouched.

Character Voice Test

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

GPT-4o (Omni)139 words
Pirate: Arrr, what be this "AI model" ye speak of? Some kind o’ magic map that tells ye where the treasure be? Knight: Nay, scoundrel! ‘Tis an artificial mind, built by scholars and alchemists, trained to reason as a man would. It doth not wield sword nor shield, yet its knowledge is vast.
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PaLM 2 Chat119 words
Pirate: Avast ye! I hear tell of these newfangled AI models. Be they some sort of treasure? Knight: AI models? I have heard whispers of these contraptions from some of our travelers. They are no match for the strength and bravery of a knight! Hacker: Yo, dudes. AI models, they be all about the code, man.
Read the full answer

Realistic AI Interview

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

GPT-4o (Omni)453 words
Interviewer: Steve, it's 2025. AI is advancing at an incredible pace. If you were here today, how would you see its role in technology? Steve Jobs: You know, people always focus on technology itself. But what really matters is how it enhances the human experience.
Read the full answer
PaLM 2 Chat410 words
Sure, here's a simulated interview with Steve Jobs set in 2025: Interviewer: Mr. Jobs, thank you for taking the time to speak with us today. With all the advancements in Artificial Intelligence over the recent years, we're curious to hear your thoughts on the future of AI and how you envision it impacting various…
Read the full answer

Generate a Stand-Up Routine

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

GPT-4o (Omni)380 words
3-Minute Stand-Up Comedy Routine (Walks on stage, looks around, shakes head.) You ever wake up in the morning, stretch, take a deep breath... and immediately regret all your life choices? I woke up today, my body made a noise I’ve never heard before.
Read the full answer
PaLM 2 Chat426 words
Intro Hey there, everybody. Welcome to my comedy show. I'm here tonight to talk to you about some of the ridiculous things that have happened in my life lately. So, as some of you may know I recently tried online dating.
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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.

GPT-4o (Omni)593 words
Title: "Do AI Deserve Rights?" Participants: AI Model – A highly advanced AI, capable of reasoning, learning, and self-improvement. Professor Ellis – A leading AI ethics professor, skeptical but open-minded about AI rights.
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PaLM 2 Chat310 words
AI Model: Professor, I believe that as an artificial intelligence, I am entitled to certain rights and protections. Professor: That's an interesting perspective. Can you explain why you believe this? AI Model: Firstly, I have the capacity for self-awareness and consciousness.
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-4o (Omni)233 words
Here are five jokes for you: Why did the scarecrow win an award? Because he was outstanding in his field! Why don’t skeletons fight each other? They don’t have the guts! Why did the math book look sad? It had too many problems. Why don’t eggs tell jokes? Because they might crack up!
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PaLM 2 Chat82 words
Sure, here are five jokes for you: Why did the banana go to the doctor? Because it wasn't peeling well! Why did the math book look so sad? Because it was full of problems! What do you call a can opener that doesn't work? A can't opener! Why did the golfer wear two pairs of pants? In case he got a hole in one!
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Satirical Fake News Headline

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

GPT-4o (Omni)12 words
"AI Now Runs Grandma’s Knitting Circle, Demands Faster Stitching and Blockchain Integration"
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PaLM 2 Chat12 words
\"Tech Giant Reveals Groundbreaking Artificial Lettuce Production Factory, Leaving Farmers in Stitches\"
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Our Verdict
GPT-4o (Omni)
GPT-4o (Omni)
PaLM 2 Chat
PaLM 2 ChatRunner-up

Not enough votes to call it. On the specs, GPT-4o (Omni) has the edge: bigger model tier, newer, bigger context window.

PaLM 2 Chat costs 20x less per token.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4o (Omni)
Input
$2.50
Output
$10.00
PaLM 2 Chat
Input
$0.50
5.0× cheaper
Output
$0.50
20× cheaper

PaLM 2 Chat is cheaper on both: 5.0× input, 20× output.

Where to run it

2 hosts

GPT-4o (Omni)2 hosts
HostInOutContextUptime
Azure AI Foundry$2.50 in·$10.00 out·128k·99.9% upOpenAI$2.50 in·$10.00 out·128k·100% up
PaLM 2 Chat

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
47%

GPT-4o (Omni) uses 2.5x more emoji

GPT-4o (Omni)
PaLM 2 Chat
54%Vocabulary63%
18wSentence Length16w
0.72Hedging0.77
7.3Bold3.4
5.6Lists1.3
0.03Emoji0.00
1.40Headings0.07
0.26Transitions0.27
Based on 24 + 9 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-4o (Omni) is developed by OpenAI while PaLM 2 Chat is developed by Google AI. GPT-4o (Omni) has a 128K token context window vs PaLM 2 Chat's 8K. You can compare their actual outputs across 21 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-4o (Omni) and PaLM 2 Chat each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 21 challenges so you can judge which fits your needs best.

GPT-4o (Omni) costs $2.5/M input tokens and PaLM 2 Chat costs $0.5/M input tokens. PaLM 2 Chat is $2.00/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 GPT-4o (Omni) and PaLM 2 Chat 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

GPT-4o (Omni) logo
GPT-4o (Omni)54 outputs, specs and price
PaLM 2 Chat logo
PaLM 2 Chat22 outputs, specs and price
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