What is the difference between Claude 2 and OpenAI o3?

Claude 2 is developed by Anthropic while OpenAI o3 is developed by OpenAI. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.

Which is better, Claude 2 or OpenAI o3?

It depends on your use case. Claude 2 and OpenAI o3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.

How much does Claude 2 cost compared to OpenAI o3?

Claude 2 costs $11.02/M input tokens and OpenAI o3 costs $10/M input tokens. OpenAI o3 is $1.02/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 2 and OpenAI o3 on Rival?

This page shows a side-by-side comparison of Claude 2 and OpenAI o3 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 Apr 2025

Claude 2vsOpenAI o3

OpenAI o3 is cheaper than Claude 2 at $10/M vs $11.02/M input tokens.

Claude 2 and OpenAI o3 compared across 5 shared prompts
Spec	Claude 2	OpenAI o3
Input price	$11.02/M tokens	$10/M tokens
Output price	$32.68/M tokens	$40/M tokens
Context window	100K tokens	—
Parameters	Not disclosed	Not disclosed
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Jun 2023	Apr 2025