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  5. Grok 3 Mini BetavsSolar Mini 4
Updated Sep 2026

Grok 3 Mini BetavsSolar Mini 4

Solar Mini 4 is cheaper than Grok 3 Mini Beta at $0.05/M vs $0.4/M input tokens.

Grok 3 Mini Beta and Solar Mini 4 compared across 5 shared prompts
SpecGrok 3 Mini BetaSolar Mini 4
Input price$0.4/M tokens$0.05/M tokens
Output price$0.8/M tokens$0.2/M tokens
Context window131K tokens524K tokens
Free API (OpenRouter)NoNo
ReleasedApr 2025Sep 2026
Our Verdict
Grok 3 Mini Beta
Grok 3 Mini Beta
Solar Mini 4
Solar Mini 4

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

Solar Mini 4 costs 4.0x less per token.

Too close to call
API pricing

Cost per 1M tokens

Grok 3 Mini Beta
Input
$0.40
Output
$0.80
Solar Mini 4
Input
$0.05
8.0× cheaper
Output
$0.20
4.0× cheaper

Solar Mini 4 is cheaper on both: 8.0× input, 4.0× output.

Where to run it

1 host

Grok 3 Mini Beta

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

Grok 3 Mini Beta is developed by xAI while Solar Mini 4 is developed by Upstage. Grok 3 Mini Beta has a 131K token context window vs Solar Mini 4's 524K. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.

It depends on your use case. Grok 3 Mini Beta and Solar Mini 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.

Grok 3 Mini Beta costs $0.4/M input tokens and Solar Mini 4 costs $0.05/M input tokens. Solar Mini 4 is $0.35/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 Grok 3 Mini Beta 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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Solar Mini 419 outputs, specs and price
Rival
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Explore all of Rival

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