What is the difference between xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507?

xAI: Grok 4 Fast (free) is developed by xAI while Qwen: Qwen3 30B A3B Instruct 2507 is developed by Qwen. xAI: Grok 4 Fast (free) has a 2.0M token context window vs Qwen: Qwen3 30B A3B Instruct 2507's 131K. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4 Fast (free) or Qwen: Qwen3 30B A3B Instruct 2507?

It depends on your use case. xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 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.

How much does xAI: Grok 4 Fast (free) cost compared to Qwen: Qwen3 30B A3B Instruct 2507?

xAI: Grok 4 Fast (free) costs $0/M input tokens and Qwen: Qwen3 30B A3B Instruct 2507 costs $0.2/M input tokens. xAI: Grok 4 Fast (free) is $0.20/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 on Rival?

This page shows a side-by-side comparison of xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 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.

What is the difference between xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507?

xAI: Grok 4 Fast (free) is developed by xAI while Qwen: Qwen3 30B A3B Instruct 2507 is developed by Qwen. xAI: Grok 4 Fast (free) has a 2.0M token context window vs Qwen: Qwen3 30B A3B Instruct 2507's 131K. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4 Fast (free) or Qwen: Qwen3 30B A3B Instruct 2507?

It depends on your use case. xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 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.

How much does xAI: Grok 4 Fast (free) cost compared to Qwen: Qwen3 30B A3B Instruct 2507?

xAI: Grok 4 Fast (free) costs $0/M input tokens and Qwen: Qwen3 30B A3B Instruct 2507 costs $0.2/M input tokens. xAI: Grok 4 Fast (free) is $0.20/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 on Rival?

This page shows a side-by-side comparison of xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 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.

xAI: Grok 4 Fast (free) vs Qwen: Qwen3 30B A3B Instruct 2507: Which Is Better?

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Qwen: Qwen3 30B A3B Instruct 2507Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Qwen: Qwen3 30B A3B Instruct 2507

Input

$0.20

Output

$0.80

Writing DNA

Style Comparison

Similarity

36%

Qwen: Qwen3 30B A3B Instruct 2507 uses 103.6x more emoji

xAI: Grok 4 Fast (free)

Qwen: Qwen3 30B A3B Instruct 2507

65%Vocabulary55%

13wSentence Length18w

0.56Hedging0.52

1.4Bold6.7

2.5Lists4.3

0.00Emoji1.04

1.58Headings0.92

0.28Transitions0.11

Based on 14 + 22 text responses

Research

What we learned reading every model

xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen: Qwen3 30B A3B Instruct 2507 vs MiniMax M3New provider

Qwen: Qwen3 30B A3B Instruct 2507 vs Claude Sonnet 4New provider

Qwen: Qwen3 30B A3B Instruct 2507 vs xAI: Grok 4Cross-provider

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Qwen: Qwen3 30B A3B Instruct 2507Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Qwen: Qwen3 30B A3B Instruct 2507

Input

$0.20

Output

$0.80

Writing DNA

Style Comparison

Similarity

36%

Qwen: Qwen3 30B A3B Instruct 2507 uses 103.6x more emoji

xAI: Grok 4 Fast (free)

Qwen: Qwen3 30B A3B Instruct 2507

65%Vocabulary55%

13wSentence Length18w

0.56Hedging0.52

1.4Bold6.7

2.5Lists4.3

0.00Emoji1.04

1.58Headings0.92

0.28Transitions0.11

Based on 14 + 22 text responses

Research

What we learned reading every model

xAI: Grok 4 Fast (free) and Qwen: Qwen3 30B A3B Instruct 2507 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen: Qwen3 30B A3B Instruct 2507 vs MiniMax M3New provider

Qwen: Qwen3 30B A3B Instruct 2507 vs Claude Sonnet 4New provider

Qwen: Qwen3 30B A3B Instruct 2507 vs xAI: Grok 4Cross-provider