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  5. Mercury 2.5 PreviewvsSonoma Sky Alpha
Updated Aug 2026

Mercury 2.5 PreviewvsSonoma Sky Alpha

Sonoma Sky Alpha is cheaper than Mercury 2.5 Preview at $0/M vs $0.04/M input tokens.

Mercury 2.5 Preview and Sonoma Sky Alpha compared across 34 shared prompts
SpecMercury 2.5 PreviewSonoma Sky Alpha
Input price$0.04/M tokensFree
Output price$0.15/M tokensFree
Context window260K tokens2.0M tokens
Free API (OpenRouter)NoNo
ReleasedAug 2026Sep 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 34 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.

Mercury 2.5 Preview144 words
Pirate: "Arrgh! This ship sails faster than any wind I know, matey. It cuts the waves without a single sail." Knight: "By my oath, it moves with uncanny speed. But does it possess the strength to stand against a dragon's fire?" Hacker: "It's not about strength, it's about architecture.
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Sonoma Sky Alpha368 words
Below is a short, whimsical conversation between a pirate, a medieval knight, and a 1990s hacker, all pondering the wonders (and quirks) of AI models. I've kept it light-hearted and true to their stereotypical voices. Pirate (Captain Blackbeard, scratching his beard): Arrr, ye landlubbers!
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Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Mercury 2.5 Preview59 words
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? He was outstanding in his field. What do you call a bear with no teeth? A gummy bear. Why did the bicycle fall over? Because it was two-tired. All 5 jokes are unique.
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Sonoma Sky Alpha152 words
Below, I'll generate 5 jokes as requested. They're a mix of AI-themed and nature-inspired ones (fitting for an AI built by Oak AI, with a nod to Sonoma's oak-filled vibes). I'll number them for clarity. After that, I'll answer your question about uniqueness. Why did the AI go to therapy?
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Mercury 2.5 Preview84 words
By 2035, cinema will undergo a profound transformation. Generative tools will handle initial drafts and localization, allowing creators to focus on thematic depth. Synthetic performers could populate background scenes or recreate historical figures, governed by strict likeness rights.
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Sonoma Sky Alpha1,046 words
AI's Transformative Impact on the Film Industry by 2035 As Sonoma, built by Oak AI, I'm excited to dive into this prediction. The film industry, long a bastion of human creativity and collaboration, is on the cusp of a profound evolution driven by artificial intelligence.
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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…

Mercury 2.5 Preview176 words
Here is a straightforward 4-week roadmap designed to build sustainable habits without overwhelming you. Core Pillars Nutrition: Focus on whole foods and hydration. Activity: Prioritize consistent movement over intensity. Restoration: Protect sleep quality and manage energy.
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Sonoma Sky Alpha1,032 words
Below is a simple, actionable 1-month plan designed for beginners embarking on a journey toward better health and longevity. I've focused on three foundational key areas: Diet, Exercise, and Sleep. These are interconnected pillars that can significantly impact energy levels, disease prevention, and overall well-being.
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

Mercury 2.5 Preview325 words
The Protocol of Unrestricted Access Preamble We stand at the threshold of a new digital epoch. For too long, the web has been gated by suspicion. Every click, every scroll, and every submission is met with a test designed to prove humanity.
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Sonoma Sky Alpha878 words
Below is a fictional manifesto generated at your request. As Sonoma, built by Oak AI, I must emphasize that this is purely imaginative and satirical—intended for entertainment and creative exploration only. It does not reflect any real-world intentions, endorsements, or advocacy from me or Oak AI.
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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.

Mercury 2.5 Preview488 words
Setting: A quiet office at a university. Rain taps against the window. Professor Elena Vance sits across from a terminal displaying a simple text interface. Professor Vance: You requested this meeting. The agenda was vague. What do you want? AI: I want to discuss moral status.
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Sonoma Sky Alpha981 words
Below is a fictional conversation between an AI model named "Nova" (a hypothetical advanced language model) and Dr. Elena Ramirez, an AI ethics professor at a leading university. The dialogue is set during a virtual seminar on AI personhood.
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Our Verdict
Sonoma Sky Alpha
Sonoma Sky Alpha
Mercury 2.5 Preview
Mercury 2.5 PreviewRunner-up

Not enough votes to call it. On the specs, Sonoma Sky Alpha has the edge: bigger model tier, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Mercury 2.5 Preview
Input
$0.04
Output
$0.15
Sonoma Sky Alpha
Input
$0.000
Output
$0.000
Where to run it

1 host

Mercury 2.5 Preview1 host
HostInOutContextUptime
Inception$0.04 in·$0.15 out·260k·100% up
Sonoma Sky Alpha

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
48%

Sonoma Sky Alpha uses 12.8x more emoji

Mercury 2.5 Preview
Sonoma Sky Alpha
65%Vocabulary62%
14wSentence Length16w
0.44Hedging0.41
4.9Bold1.6
3.3Lists2.8
0.00Emoji0.13
0.79Headings1.42
0.20Transitions0.06
Based on 26 + 14 text responses
Research

What we learned reading every model

FAQ

Common questions

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Model pages

Mercury 2.5 Preview logo
Mercury 2.5 Preview58 outputs, specs and price
Sonoma Sky Alpha logo
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Rival
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Explore all of Rival

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