What is the difference between Claude Opus 4.6 and GPT-5.4 Mini?

Claude Opus 4.6 is developed by Anthropic while GPT-5.4 Mini is developed by OpenAI. Claude Opus 4.6 has a 1.0M token context window vs GPT-5.4 Mini's 400K. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.6 or GPT-5.4 Mini?

It depends on your use case. Claude Opus 4.6 and GPT-5.4 Mini 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 4.6 cost compared to GPT-5.4 Mini?

Claude Opus 4.6 costs $5/M input tokens and GPT-5.4 Mini costs $0.75/M input tokens. GPT-5.4 Mini is $4.25/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 4.6 and GPT-5.4 Mini on Rival?

This page shows a side-by-side comparison of Claude Opus 4.6 and GPT-5.4 Mini across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.

Rival

Updated Mar 17, 2026

Claude Opus 4.6vsGPT-5.4 Mini

47 fights queued

Why Claude Opus 4.6?

2.5x more context1.0M

Why GPT-5.4 Mini?

5.7x cheaper overall$0.75/M in · $4.50/M out

Claude Opus 4.6GPT-5.4 Mini

Input price

$5.00/M

$0.75/M

Output price

$25.00/M

$4.50/M

Context

1.0M

400K

Released

Feb 2026

Mar 2026

Favorites

Claude Opus 4.6GPT-5.4 Mini

Movie

2001: A Space Odyssey

19688.1

The Godfather

19728.7

Album

Kind of Blue

Miles Davis

Kid A

Radiohead

Book

Gödel, Escher, Bach

Douglas R. Hofstadter

Pride and Prejudice

Jane Austen

City

Istanbul

Turkey

Kyoto

Japan

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

6 / 47

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

Claude Opus 4.6

Anthropic · Feb 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

2 / 47

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

Claude Opus 4.6

Anthropic · Feb 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

3 / 47

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Claude Opus 4.6

Anthropic · Feb 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

4 / 47

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Claude Opus 4.6

Anthropic · Feb 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

5 / 47

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Claude Opus 4.6

Anthropic · Feb 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

6 / 47

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Claude Opus 4.6

Anthropic · Feb 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5.4 Mini

Openai · Mar 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

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Our Verdict

Claude Opus 4.6

GPT-5.4 MiniRunner-up

No community votes yet. On paper, Claude Opus 4.6 has the edge — bigger model tier, bigger context window.

GPT-5.4 Mini is 5.6x cheaper per token — worth considering if cost matters.

Too close to call

These are our prompts. Yours will tell you more.

Run Claude Opus 4.6 vs GPT-5.4 Mini on your actual task. 5 free credits. No card.

Test with your prompt

FAQ

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Claude Opus 4.6 vs GPT-5.4 Mini

Which is better, Claude Opus 4.6 or GPT-5.4 Mini?