What is the difference between Claude Sonnet 4 and GPT-5 Mini?

Claude Sonnet 4 is developed by Anthropic while GPT-5 Mini is developed by OpenAI. in 29 community votes on Rival, Claude Sonnet 4 wins 77% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Claude Sonnet 4 or GPT-5 Mini?

Based on 29 community votes on Rival, Claude Sonnet 4 wins 77% of head-to-head matchups against GPT-5 Mini. Claude Sonnet 4 is strongest in Web Design, Image Generation. However, GPT-5 Mini leads in Reasoning.

How much does Claude Sonnet 4 cost compared to GPT-5 Mini?

Claude Sonnet 4 costs $3/M input tokens and GPT-5 Mini costs $0.25/M input tokens. GPT-5 Mini is $2.75/M cheaper per input. The more expensive model wins 77% of duels, so the premium may be justified by quality.

How are Claude Sonnet 4 vs GPT-5 Mini votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 29 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

Updated Aug 2025

Claude Sonnet 4vsGPT-5 Mini

Claude Sonnet 4 wins 77% of 29 blind community votes against GPT-5 Mini on Rival.

Claude Sonnet 4 and GPT-5 Mini compared across 54 shared prompts
Spec	Claude Sonnet 4	GPT-5 Mini
Win rate	77%	23%
Input price	$3/M tokens	$0.25/M tokens
Output price	$15/M tokens	$2/M tokens
Context window	200K tokens	—
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	May 2025	Aug 2025
SWE-bench Verified	72.7%	~70%