What is the difference between ChatGPT-4o (March 2025) and Claude 3.7 Thinking Sonnet?

ChatGPT-4o (March 2025) is developed by OpenAI while Claude 3.7 Thinking Sonnet is developed by Anthropic. ChatGPT-4o (March 2025) has a 128K token context window vs Claude 3.7 Thinking Sonnet's 200K. in 4 community votes on RIVAL, Claude 3.7 Thinking Sonnet wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 32 challenges.

Which is better, ChatGPT-4o (March 2025) or Claude 3.7 Thinking Sonnet?

Based on 4 community votes on RIVAL, Claude 3.7 Thinking Sonnet wins 100% of head-to-head matchups against ChatGPT-4o (March 2025).

How much does ChatGPT-4o (March 2025) cost compared to Claude 3.7 Thinking Sonnet?

ChatGPT-4o (March 2025) costs $5/M input tokens and Claude 3.7 Thinking Sonnet costs $6/M input tokens. ChatGPT-4o (March 2025) is $1.00/M cheaper per input. The more expensive model wins 100% of duels, so the premium may be justified by quality.

How are ChatGPT-4o (March 2025) vs Claude 3.7 Thinking Sonnet 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. This eliminates brand bias. 4 votes have been collected for this pair across 32 challenges. All vote data is part of RIVAL's open dataset.