What is the difference between Grok 4 Fast (free) and Qwen3 Coder?

Grok 4 Fast (free) is developed by xAI while Qwen3 Coder is developed by Qwen. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

Which is better, Grok 4 Fast (free) or Qwen3 Coder?

It depends on your use case. Grok 4 Fast (free) and Qwen3 Coder 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 Grok 4 Fast (free) cost compared to Qwen3 Coder?

Grok 4 Fast (free) costs $0/M input tokens and Qwen3 Coder costs $0.22/M input tokens. Grok 4 Fast (free) is $0.22/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 Fast (free) and Qwen3 Coder on Rival?

This page shows a side-by-side comparison of Grok 4 Fast (free) and Qwen3 Coder 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.

Updated Sep 2025

Grok 4 Fast (free)vsQwen3 Coder

Grok 4 Fast (free) is cheaper than Qwen3 Coder at $0/M vs $0.22/M input tokens.

Grok 4 Fast (free) and Qwen3 Coder compared across 35 shared prompts
Spec	Grok 4 Fast (free)	Qwen3 Coder
Input price	Free	$0.22/M tokens
Output price	Free	$0.95/M tokens
Context window	2.0M tokens	—
Weights	—	Open
Free API (OpenRouter)	No	No
Released	Sep 2025	Jul 2025