What is the difference between Claude 3 Opus and MiniMax M3?

Claude 3 Opus is developed by Anthropic while MiniMax M3 is developed by MiniMax. Claude 3 Opus has a 200K token context window vs MiniMax M3's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or MiniMax M3?

It depends on your use case. Claude 3 Opus and MiniMax M3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to MiniMax M3?

Claude 3 Opus 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 3 Opus and MiniMax M3 on Rival?

This page shows a side-by-side comparison of Claude 3 Opus 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 3 OpusvsMiniMax M3

MiniMax M3 is cheaper than Claude 3 Opus at $0.3/M vs $15/M input tokens.

Claude 3 Opus and MiniMax M3 compared across 12 shared prompts
Spec	Claude 3 Opus	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	—	Open
Free API (OpenRouter)	No	No
Released	Mar 2024	Jun 2026