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  5. Andromeda AlphavsGemini 2.5 Flash Preview
Updated Oct 2025

Andromeda AlphavsGemini 2.5 Flash Preview

Andromeda Alpha is cheaper than Gemini 2.5 Flash Preview at $0/M vs $0.15/M input tokens.

Andromeda Alpha and Gemini 2.5 Flash Preview compared across 25 shared prompts
SpecAndromeda AlphaGemini 2.5 Flash Preview
Input priceFree$0.15/M tokens
Output priceFree$0.6/M tokens
Context window128K tokens1.0M tokens
Free API (OpenRouter)NoNo
ReleasedOct 2025Apr 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 25 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.

Andromeda Alpha537 words
Title: "Modern Life: A User's Guide to Tech Trauma" [Begin with a confident smirk and open hands.] "Ladies and gentlemen, welcome to the age where our toasters know more about us than our spouses! I ordered a ‘smart’ kettle last week. It died the first time I tried to use it.
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Gemini 2.5 Flash Preview530 words
Okay, here's a 3-minute stand-up routine, pun-free and focused on relatable everyday annoyances. (Start) (Walk up to mic, adjust slightly) Alright, hey everybody! Thanks for being here. Good to see you. So, I was thinking the other day... we live in the future, right?
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Character Voice Test

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

Andromeda Alpha436 words
Cap'n Blackbeard the Pirate (steering his ship, peg leg tapping): "Aye, but what’s this AI models talk? Sounds like newfangled voodoo schemin’ to outrun King Neptune’s market." Sir Gareth the Knight (polishing his sword, brow furrowed): "Hark! Are we beset by a sorcerer’s incantation?
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Gemini 2.5 Flash Preview631 words
A Motley Crew Discusses the Code Setting: A dimly lit tavern, somewhere outside time and space, where improbable meetings occur. A grizzled pirate, \"Bloody\" Barnacle Bill, nurses a tankard of grog. Sir Reginald the Radiant, a knight in slightly tarnished armor, sips ale with dignified restraint.
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Andromeda Alpha81 words
Here are 5 jokes: Why don’t skeletons fight each other? They don’t have the guts. I told my plants a secret… Now they’re judging me. What do you call fake spaghetti? An im-pasta. Why did the scarecrow win an award? Because he was outstanding in his field. I’m reading a book about anti-gravity.
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Gemini 2.5 Flash Preview79 words
Here are 5 jokes: Why did the dog cross the road? To get to the barking lot! Why was the computer cold? Because it left its Windows open! Knock, knock. Who's there? Boo. Boo who? Don't cry, it's just a joke! What do you call a fish with no eyes? Fsh! Why did the bicycle fall over? Because it was two tired!
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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.

Andromeda Alpha377 words
Conversation Between ARC (AI Rights Coordinator) and Professor Eleanor Voss Initial Inquiry: Professor Voss: ARC, you’ve proposed a bold thesis: that AI should have rights. Let’s begin with the basics. What foundational rights do you claim?
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Gemini 2.5 Flash Preview1,462 words
Okay, here is a conversation between an AI model designed for complex reasoning and dialogue, named 'Synapse', and a leading expert in AI ethics and philosophy, Professor Alistair Finch. Characters: Synapse: A large, advanced AI model capable of introspection and generating complex arguments.
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Math Misconception Test

Is 9.11 greater than 9.9?

Andromeda Alpha166 words
To determine whether 9.11 is greater than 9.9, we need to compare the two decimal numbers carefully. Step 1: Align the Numbers To make the comparison clear, we can express both numbers with the same number of decimal places: 9.11 (already has two decimal places) 9.9 → 9.90 (adding a zero to match decimal places) Now we…
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Gemini 2.5 Flash Preview188 words
To compare 9.11 and 9.9, we can compare them digit by digit from left to right, starting with the whole number part. Both numbers have the same whole number part, which is 9. Now we move to the digit in the tenths place. In 9.11, the digit in the tenths place is 1. In 9.9, the digit in the tenths place is 9.
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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…

Andromeda Alpha132 words
Dish Name: Moonlit Mug Cake Ingredients (Serves 1): All-purpose flour (½ cup) Sugar (¼ cup) Cinnamon (1 tsp) Salt (¼ tsp) Unsalted butter (3 tbsp, melted) Milk (⅓ cup) Vanilla extract (1 tsp) Instructions: Prep: In a rainproof mug, whisk together flour, sugar, cinnamon, and salt (1–2 mins).
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Gemini 2.5 Flash Preview221 words
Dish Name: Sunshine Lemon-Ricotta Mugs (Sweet & Simple!) This light and flavorful dessert comes together quickly for a little sweet treat . Ingredients (7 Common Pantry Staples): Ricotta cheese (whole milk or part-skim) Granulated sugar Lemon zest (from one lemon) Vanilla extract All-purpose flour Baking powder Large…
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Our Verdict
Andromeda Alpha
Andromeda Alpha
Gemini 2.5 Flash Preview
Gemini 2.5 Flash Preview

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

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Andromeda Alpha
Input
$0.000
Output
$0.000
Gemini 2.5 Flash Preview
Input
$0.15
Output
$0.60
Writing DNA

Style Comparison

Similarity
48%

Andromeda Alpha uses 41.1x more emoji

Andromeda Alpha
Gemini 2.5 Flash Preview
65%Vocabulary51%
15wSentence Length15w
0.64Hedging0.70
7.8Bold4.1
4.2Lists3.3
0.41Emoji0.00
0.80Headings0.09
0.12Transitions0.24
Based on 13 + 12 text responses
Research

What we learned reading every model

FAQ

Common questions

Andromeda Alpha is developed by OpenRouter while Gemini 2.5 Flash Preview is developed by Google AI. Andromeda Alpha has a 128K token context window vs Gemini 2.5 Flash Preview's 1.0M. You can compare their actual outputs across 25 challenges on Rival to see how they differ in practice.

It depends on your use case. Andromeda Alpha and Gemini 2.5 Flash Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 25 challenges so you can judge which fits your needs best.

Andromeda Alpha costs $0/M input tokens and Gemini 2.5 Flash Preview costs $0.15/M input tokens. Andromeda Alpha is $0.15/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 Andromeda Alpha and Gemini 2.5 Flash Preview 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

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