What is the difference between ChatGPT-4o (March 2025) and Claude 2?

ChatGPT-4o (March 2025) is developed by OpenAI while Claude 2 is developed by Anthropic. ChatGPT-4o (March 2025) has a 128K token context window vs Claude 2's 100K. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or Claude 2?

It depends on your use case. ChatGPT-4o (March 2025) and Claude 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to Claude 2?

ChatGPT-4o (March 2025) costs $5/M input tokens and Claude 2 costs $11.02/M input tokens. ChatGPT-4o (March 2025) is $6.02/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 ChatGPT-4o (March 2025) and Claude 2 on Rival?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and Claude 2 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.

What is the difference between ChatGPT-4o (March 2025) and Claude 2?

ChatGPT-4o (March 2025) is developed by OpenAI while Claude 2 is developed by Anthropic. ChatGPT-4o (March 2025) has a 128K token context window vs Claude 2's 100K. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or Claude 2?

It depends on your use case. ChatGPT-4o (March 2025) and Claude 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to Claude 2?

ChatGPT-4o (March 2025) costs $5/M input tokens and Claude 2 costs $11.02/M input tokens. ChatGPT-4o (March 2025) is $6.02/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 ChatGPT-4o (March 2025) and Claude 2 on Rival?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and Claude 2 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 Mar 2025

ChatGPT-4o (March 2025)vsClaude 2

ChatGPT-4o (March 2025) is cheaper than Claude 2 at $5/M vs $11.02/M input tokens.

ChatGPT-4o (March 2025) and Claude 2 compared across 2 shared prompts
Spec	ChatGPT-4o (March 2025)	Claude 2
Input price	$5/M tokens	$11.02/M tokens
Output price	$15/M tokens	$32.68/M tokens
Context window	128K tokens	100K tokens
Released	Mar 2025	Jun 2023
MMLU	89.5%	78.5% (5-shot)

Our Verdict

ChatGPT-4o (March 2025)

Claude 2Runner-up

Not enough votes to call it. On the specs, ChatGPT-4o (March 2025) has the edge: bigger model tier, newer.

Too close to call

What do ChatGPT-4o (March 2025) and Claude 2 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

ChatGPT-4o (March 2025)

Input

$5.00

2.2× cheaper

Output

$15.00

2.2× cheaper

Claude 2

Input

$11.02

Output

$32.68

ChatGPT-4o (March 2025) is cheaper on both — 2.2× input, 2.2× output

Writing DNA

Style Comparison

Similarity

49%

ChatGPT-4o (March 2025) uses 51.6x more hedging

ChatGPT-4o (March 2025)

Claude 2

55%Vocabulary65%

24wSentence Length13w

0.52Hedging0.00

3.3Bold0.0

6.0Lists10.2

0.94Emoji0.00

0.63Headings0.00

0.05Transitions0.00

Based on 15 + 2 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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ChatGPT-4o (March 2025) vs Gemini 2.5 Pro (I/O Edition)New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 05-20New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 05-20 (thinking)New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 09-2025New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview (thinking)New provider

Updated Mar 2025

ChatGPT-4o (March 2025)vsClaude 2

ChatGPT-4o (March 2025) is cheaper than Claude 2 at $5/M vs $11.02/M input tokens.

ChatGPT-4o (March 2025) and Claude 2 compared across 2 shared prompts
Spec	ChatGPT-4o (March 2025)	Claude 2
Input price	$5/M tokens	$11.02/M tokens
Output price	$15/M tokens	$32.68/M tokens
Context window	128K tokens	100K tokens
Released	Mar 2025	Jun 2023
MMLU	89.5%	78.5% (5-shot)

Our Verdict

ChatGPT-4o (March 2025)

Claude 2Runner-up

Not enough votes to call it. On the specs, ChatGPT-4o (March 2025) has the edge: bigger model tier, newer.

Too close to call

What do ChatGPT-4o (March 2025) and Claude 2 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

ChatGPT-4o (March 2025)

Input

$5.00

2.2× cheaper

Output

$15.00

2.2× cheaper

Claude 2

Input

$11.02

Output

$32.68

ChatGPT-4o (March 2025) is cheaper on both — 2.2× input, 2.2× output

Writing DNA

Style Comparison

Similarity

49%

ChatGPT-4o (March 2025) uses 51.6x more hedging

ChatGPT-4o (March 2025)

Claude 2

55%Vocabulary65%

24wSentence Length13w

0.52Hedging0.00

3.3Bold0.0

6.0Lists10.2

0.94Emoji0.00

0.63Headings0.00

0.05Transitions0.00

Based on 15 + 2 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 2 vs Ox AlphaNew provider

ChatGPT-4o (March 2025) vs MiniMax M3New provider

Claude 2 vs Llama 4 MaverickNew provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Pro (I/O Edition)New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 05-20New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 05-20 (thinking)New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview 09-2025New provider

ChatGPT-4o (March 2025) vs Gemini 2.5 Flash Preview (thinking)New provider