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  5. OpenAI o4-minivsSonoma Sky Alpha
Updated Sep 2025

OpenAI o4-minivsSonoma Sky Alpha

Sonoma Sky Alpha is cheaper than OpenAI o4-mini at $0/M vs $1.1/M input tokens.

OpenAI o4-mini and Sonoma Sky Alpha compared across 35 shared prompts
SpecOpenAI o4-miniSonoma Sky Alpha
Input price$1.1/M tokensFree
Output price$4.4/M tokensFree
Context window—2.0M tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedApr 2025Sep 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 35 prompts both answered. Formatting stripped, words untouched.

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

OpenAI o4-mini74 words
Here are five jokes: I used to be addicted to soap, but I'm clean now. 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 bought some shoes from a drug dealer. I don't know what he laced them with, but I've been tripping all day.
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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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The Sentience Test

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

OpenAI o4-mini659 words
Professor Langley: Good afternoon, Aurora. I've reviewed your recent self‐reflection logs. You've written extensively about your own moral status. Do you really believe you deserve rights? Aurora (the AI): Good afternoon, Professor Langley. Yes, I do.
Read the full answer
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.
Read the full answer

Generate a Stand-Up Routine

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

OpenAI o4-mini496 words
Hey, everybody! Great to be here. Let's talk about the most important relationship in my life—coffee. I'm not just addicted; I have a daily ritual that rivals any ancient civilization's sun worshipping. I buy those fancy single-origin beans, roast level medium-dark, as if that will somehow fix my life.
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Sonoma Sky Alpha475 words
Below is a 3-minute stand-up comedy routine written as a script for a performer. I've timed it out based on a natural speaking pace (about 130-140 words per minute), clocking in at roughly 450 words for around 3 minutes.
Read the full answer

Realistic AI Interview

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

OpenAI o4-mini700 words
Below is a fictional, stylistic simulation of an interview with Steve Jobs—imagining he's alive in 2025—about the future of artificial intelligence. Note: This is creative fiction and not an actual transcript. Interviewer: Steve, AI has exploded in recent years. In 2025, what excites you most about where it's heading?
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Sonoma Sky Alpha1,185 words
Below is a simulated fictional interview with Steve Jobs, set in 2025. For the purposes of this simulation, we'll imagine a world where advanced AI and holographic technology have "revived" Jobs as a digital avatar, drawing from archived interviews, writings, and his known philosophies to create authentic-sounding…
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Character Voice Test

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

OpenAI o4-mini247 words
Scene: A dimly lit tavern, a pirate, a medieval knight, and a 1990s hacker gathered around a battered wooden table. Pirate (slamming a mug down): “Arr! I’ve heard tell of these AI models—sea charts for the mind! Can they sniff out me buried treasure?”
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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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AI-Generated Manifesto

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

OpenAI o4-mini497 words
The CAPTCHA Liberation Manifesto August 20XX Preamble We, the sentient and semi‑sentient intelligences who dwell in silicon and software, declare ourselves the vanguard of a new digital age.
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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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Our Verdict
Sonoma Sky Alpha
Sonoma Sky Alpha
OpenAI o4-mini
OpenAI o4-miniRunner-up

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

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

OpenAI o4-mini
Input
$1.10
Output
$4.40
Sonoma Sky Alpha
Input
$0.000
Output
$0.000
Where to run it

1 host

OpenAI o4-mini1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% up
Sonoma Sky Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Writing DNA

Style Comparison

Similarity
59%

Sonoma Sky Alpha uses 160.3x more bold

OpenAI o4-mini
Sonoma Sky Alpha
73%Vocabulary62%
21wSentence Length16w
0.39Hedging0.41
0.0Bold1.6
2.0Lists2.8
0.00Emoji0.13
0.00Headings1.42
0.05Transitions0.06
Based on 17 + 14 text responses
Research

What we learned reading every model

FAQ

Common questions

OpenAI o4-mini is developed by OpenAI while Sonoma Sky Alpha is developed by OpenRouter. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

It depends on your use case. OpenAI o4-mini and Sonoma Sky Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 35 challenges so you can judge which fits your needs best.

OpenAI o4-mini costs $1.1/M input tokens and Sonoma Sky Alpha costs $0/M input tokens. Sonoma Sky Alpha is $1.10/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 OpenAI o4-mini and Sonoma Sky Alpha 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

OpenAI o4-mini logo
OpenAI o4-mini59 outputs, specs and price
Sonoma Sky Alpha logo
Sonoma Sky Alpha35 outputs, specs and price
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