What is the difference between Claude Opus 4 and MiniMax M3?

Claude Opus 4 is developed by Anthropic while MiniMax M3 is developed by MiniMax. Claude Opus 4 has a 200K token context window vs MiniMax M3's 1.0M. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4 or MiniMax M3?

It depends on your use case. Claude Opus 4 and MiniMax M3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How much does Claude Opus 4 cost compared to MiniMax M3?

Claude Opus 4 costs $15/M input tokens and MiniMax M3 costs $0.3/M input tokens. MiniMax M3 is $14.70/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 Claude Opus 4 and MiniMax M3 on Rival?

This page shows a side-by-side comparison of Claude Opus 4 and MiniMax M3 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 Jun 2026

Claude Opus 4vsMiniMax M3

MiniMax M3 is cheaper than Claude Opus 4 at $0.3/M vs $15/M input tokens.

Claude Opus 4 and MiniMax M3 compared across 52 shared prompts
Spec	Claude Opus 4	MiniMax M3
Input price	$15/M tokens	$0.3/M tokens
Output price	$75/M tokens	$1.2/M tokens
Context window	200K tokens	1.0M tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	May 2025	Jun 2026