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  5. Horizon AlphavsSolar Mini 4
Updated Sep 2026

Horizon AlphavsSolar Mini 4

Horizon Alpha is cheaper than Solar Mini 4 at $0/M vs $0.05/M input tokens.

Horizon Alpha and Solar Mini 4 compared across 2 shared prompts
SpecHorizon AlphaSolar Mini 4
Input priceFree$0.05/M tokens
Output priceFree$0.2/M tokens
Context window256K tokens524K tokens
Free API (OpenRouter)NoNo
ReleasedJul 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from every prompt both answered. Formatting stripped, words untouched.

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…

Horizon Alpha698 words
Here’s a simple, beginner-friendly 1‑month plan focused on diet, exercise, and sleep. It’s designed to be realistic, build consistency, and show quick wins. Overall approach Keep it simple: small daily actions beat perfection. Track 3 basics daily: steps, protein at meals, sleep duration.
Read the full answer
Solar Mini 4669 words
Here is a simple, actionable 1-month plan designed for beginners. The focus is on consistency over intensity, meaning small, sustainable changes are better than drastic overhauls that are hard to maintain. The 3 Key Pillars Nutrition: Focus on adding good things rather than strictly restricting.
Read the full answer

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…

Horizon Alpha207 words
Golden Maple Soy Glazed Chickpeas Ingredients (7 pantry staples) 1 can (15 oz) chickpeas, drained and rinsed 2 tbsp soy sauce 1 tbsp maple syrup (or honey) 1 tbsp olive oil 1 tsp garlic powder 1/2 tsp smoked paprika (or regular paprika) Pinch of red pepper flakes (optional) + salt to taste Instructions Dry the…
Read the full answer
Solar Mini 4266 words
🌟 Golden Chickpea & Rice Skillet This comforting one-pot dish combines hearty chickpeas, tender rice, and a warm blend of spices. It's a perfect way to use up pantry staples for a quick, flavorful meal.
Read the full answer
Our Verdict
Horizon Alpha
Horizon Alpha
Solar Mini 4
Solar Mini 4

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

Too close to call
API pricing

Cost per 1M tokens

Horizon Alpha
Input
$0.000
Output
$0.000
Solar Mini 4
Input
$0.05
Output
$0.20
Where to run it

1 host

Horizon Alpha

No hosts listed on OpenRouter.

Solar Mini 41 host
HostInOutContextUptime
UUpstage$0.05 in·$0.20 out·524k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Horizon Alpha is developed by OpenRouter while Solar Mini 4 is developed by Upstage. Horizon Alpha has a 256K token context window vs Solar Mini 4's 524K. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

It depends on your use case. Horizon Alpha and Solar Mini 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

Horizon Alpha costs $0/M input tokens and Solar Mini 4 costs $0.05/M input tokens. Horizon Alpha is $0.05/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 Horizon Alpha and Solar Mini 4 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

Horizon Alpha logo
Horizon Alpha34 outputs, specs and price
Solar Mini 4 logo
Solar Mini 419 outputs, specs and price
Rival
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Explore all of Rival

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