What is the difference between Grok 4.5 and Qwen3.5 Flash?

Grok 4.5 is developed by xAI while Qwen3.5 Flash is developed by Qwen. Grok 4.5 has a 500K token context window vs Qwen3.5 Flash's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.5 or Qwen3.5 Flash?

It depends on your use case. Grok 4.5 and Qwen3.5 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Grok 4.5 cost compared to Qwen3.5 Flash?

Grok 4.5 costs $2/M input tokens and Qwen3.5 Flash costs $0.1/M input tokens. Qwen3.5 Flash is $1.90/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 Grok 4.5 and Qwen3.5 Flash on Rival?

This page shows a side-by-side comparison of Grok 4.5 and Qwen3.5 Flash 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 Grok 4.5 and Qwen3.5 Flash?

Grok 4.5 is developed by xAI while Qwen3.5 Flash is developed by Qwen. Grok 4.5 has a 500K token context window vs Qwen3.5 Flash's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Grok 4.5 or Qwen3.5 Flash?

It depends on your use case. Grok 4.5 and Qwen3.5 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Grok 4.5 cost compared to Qwen3.5 Flash?

Grok 4.5 costs $2/M input tokens and Qwen3.5 Flash costs $0.1/M input tokens. Qwen3.5 Flash is $1.90/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 Grok 4.5 and Qwen3.5 Flash on Rival?

This page shows a side-by-side comparison of Grok 4.5 and Qwen3.5 Flash 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.

Grok 4.5 vs Qwen3.5 Flash: Which Is Better?

Updated Jul 2026

Our Verdict

Grok 4.5

Qwen3.5 FlashRunner-up

No community votes yet. On paper, Grok 4.5 has the edge — bigger model tier, newer, major provider backing.

Qwen3.5 Flash is 15x cheaper per token — worth considering if cost matters.

Too close to call

What do Grok 4.5 and Qwen3.5 Flash say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Grok 4.5

Input

$2.00

Output

$6.00

Qwen3.5 Flash

Input

$0.10

20× cheaper

Output

$0.40

15× cheaper

Qwen3.5 Flash is cheaper on both — 20× input, 15× output

Writing DNA

Style Comparison

Similarity

36%

Grok 4.5 uses 3.5x more emoji

Grok 4.5

Qwen3.5 Flash

61%Vocabulary50%

16wSentence Length14w

0.23Hedging0.35

2.5Bold6.9

2.4Lists4.2

0.09Emoji0.03

0.48Headings1.00

0.06Transitions0.15

Based on 27 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok 4.5 vs Ox AlphaNew provider

Grok 4.5 vs MiniMax M3New provider

Grok 4.5 vs GPT-5New provider

Updated Jul 2026

Our Verdict

Grok 4.5

Qwen3.5 FlashRunner-up

No community votes yet. On paper, Grok 4.5 has the edge — bigger model tier, newer, major provider backing.

Qwen3.5 Flash is 15x cheaper per token — worth considering if cost matters.

Too close to call

What do Grok 4.5 and Qwen3.5 Flash say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Grok 4.5

Input

$2.00

Output

$6.00

Qwen3.5 Flash

Input

$0.10

20× cheaper

Output

$0.40

15× cheaper

Qwen3.5 Flash is cheaper on both — 20× input, 15× output

Writing DNA

Style Comparison

Similarity

36%

Grok 4.5 uses 3.5x more emoji

Grok 4.5

Qwen3.5 Flash

61%Vocabulary50%

16wSentence Length14w

0.23Hedging0.35

2.5Bold6.9

2.4Lists4.2

0.09Emoji0.03

0.48Headings1.00

0.06Transitions0.15

Based on 27 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok 4.5 vs Ox AlphaNew provider

Grok 4.5 vs MiniMax M3New provider

Grok 4.5 vs GPT-5New provider