What is the difference between Claude Sonnet 5 and GPT-5 Mini?

Claude Sonnet 5 is developed by Anthropic while GPT-5 Mini is developed by OpenAI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or GPT-5 Mini?

It depends on your use case. Claude Sonnet 5 and GPT-5 Mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 5 cost compared to GPT-5 Mini?

Claude Sonnet 5 costs $2/M input tokens and GPT-5 Mini costs $0.25/M input tokens. GPT-5 Mini is $1.75/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 Sonnet 5 and GPT-5 Mini on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and GPT-5 Mini 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 Sonnet 5vsGPT-5 Mini

GPT-5 Mini is cheaper than Claude Sonnet 5 at $0.25/M vs $2/M input tokens.

Claude Sonnet 5 and GPT-5 Mini compared across 54 shared prompts
Spec	Claude Sonnet 5	GPT-5 Mini
Input price	$2/M tokens	$0.25/M tokens
Output price	$10/M tokens	$2/M tokens
Context window	1.0M tokens	—
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Jun 2026	Aug 2025