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  5. Grok 4 Fast (free)vsMuse Glimmer 30B
Updated Aug 2026

Grok 4 Fast (free)vsMuse Glimmer 30B

Grok 4 Fast (free) is cheaper than Muse Glimmer 30B at $0/M vs $0.3/M input tokens.

Grok 4 Fast (free) and Muse Glimmer 30B compared across 2 shared prompts
SpecGrok 4 Fast (free)Muse Glimmer 30B
Input priceFree$0.3/M tokens
Output priceFree$1.2/M tokens
Context window2.0M tokens131K tokens
ParametersNot disclosed30B
Weights—Open
Free API (OpenRouter)NoNo
ReleasedSep 2025Aug 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…

Grok 4 Fast (free)849 words
1-Month Plan for Better Health and Longevity This beginner-friendly plan focuses on three foundational areas: diet, exercise, and sleep. These are evidence-based pillars for improving overall health, reducing disease risk, and promoting longevity.
Read the full answer
Muse Glimmer 30B485 words
Here is a simple, beginner-friendly 1-month plan built around 3 foundational pillars for health and longevity. The goal isn't perfection, it's consistency. The 3 Pillars: Move Daily, Eat Whole, Sleep Well Pick 1-2 small habits per pillar to start. Don't try to change everything at once.
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…

Grok 4 Fast (free)240 words
Pantry Hero Pasta Primavera This simple, savory one-pot pasta dish transforms basic staples into a flavorful, garlicky tomato sauce that's comforting and ready in under 30 minutes.
Read the full answer
Muse Glimmer 30B321 words
Dish Name: "Midnight Pantry Pantry Hero Pasta" A creamy-ish, garlicky tomato pasta that tastes like you tried way harder than you did. All from the pantry, no fresh produce needed.
Read the full answer
Our Verdict
Grok 4 Fast (free)
Grok 4 Fast (free)
Muse Glimmer 30B
Muse Glimmer 30BRunner-up

Not enough votes to call it. On the specs, Grok 4 Fast (free) has the edge: bigger model tier, bigger context window.

Too close to call
API pricing

Cost per 1M tokens

Grok 4 Fast (free)
Input
$0.000
Output
$0.000
Muse Glimmer 30B
Input
$0.30
Output
$1.20
Where to run it

4 hosts, cheapest first

Grok 4 Fast (free)

No hosts listed on OpenRouter.

Muse Glimmer 30B4 hosts
HostInOutContextUptime
PPhala$0.30 in·$1.10 out·131k·100% upDDeepInfrabf16$0.30 in·$1.20 out·131k·100% upFFireworks$0.35 in·$1.50 out·131k·100% upTTogether$0.35 in·$1.50 out·131k·99.8% up

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

Research

What we learned reading every model

FAQ

Common questions

Grok 4 Fast (free) is developed by xAI while Muse Glimmer 30B is developed by Meta AI. Grok 4 Fast (free) has a 2.0M token context window vs Muse Glimmer 30B's 131K. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

It depends on your use case. Grok 4 Fast (free) and Muse Glimmer 30B 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.

Grok 4 Fast (free) costs $0/M input tokens and Muse Glimmer 30B costs $0.3/M input tokens. Grok 4 Fast (free) is $0.30/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 4 Fast (free) and Muse Glimmer 30B 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 4 Fast (free) logo
Grok 4 Fast (free)35 outputs, specs and price
Muse Glimmer 30B logo
Muse Glimmer 30B13 outputs, specs and price
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