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  5. Grok 3 Mini BetavsGrok 4.7
Updated Sep 2026

Grok 3 Mini BetavsGrok 4.7

Grok 3 Mini Beta is cheaper than Grok 4.7 at $0.4/M vs $1.6/M input tokens.

Grok 3 Mini Beta and Grok 4.7 compared across 5 shared prompts
SpecGrok 3 Mini BetaGrok 4.7
Input price$0.4/M tokens$1.6/M tokens
Output price$0.8/M tokens$4.8/M tokens
Context window131K tokens500K tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedApr 2025Sep 2026
Our Verdict
Grok 4.7
Grok 4.7
Grok 3 Mini Beta
Grok 3 Mini BetaRunner-up

Not enough votes to call it. On the specs, Grok 4.7 has the edge: bigger model tier, newer, bigger context window.

Grok 3 Mini Beta costs 6.0x less per token.

Slight edge
API pricing

Cost per 1M tokens

Grok 3 Mini Beta
Input
$0.40
4.0× cheaper
Output
$0.80
6.0× cheaper
Grok 4.7
Input
$1.60
Output
$4.80

Grok 3 Mini Beta is cheaper on both: 4.0× input, 6.0× output.

Where to run it

1 host

Grok 3 Mini Beta

No hosts listed on OpenRouter.

Grok 4.71 host
HostInOutContextUptime
xAI$1.60 in·$4.80 out·500k·99% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Both are developed by xAI but target different use cases. Grok 3 Mini Beta has a 131K token context window vs Grok 4.7's 500K. 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 Grok 4.7 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 Grok 4.7 costs $1.6/M input tokens. Grok 3 Mini Beta is $1.20/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 Grok 4.7 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

Grok 3 Mini Beta logo
Grok 3 Mini Beta13 outputs, specs and price
Grok 4.7 logo
Grok 4.710 outputs, specs and price
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