What is the difference between Claude 3.7 Thinking Sonnet and GPT-5.6 Terra?

Claude 3.7 Thinking Sonnet is developed by Anthropic while GPT-5.6 Terra is developed by OpenAI. Claude 3.7 Thinking Sonnet has a 200K token context window vs GPT-5.6 Terra's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Thinking Sonnet or GPT-5.6 Terra?

It depends on your use case. Claude 3.7 Thinking Sonnet and GPT-5.6 Terra each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Thinking Sonnet cost compared to GPT-5.6 Terra?

Claude 3.7 Thinking Sonnet costs $6/M input tokens and GPT-5.6 Terra costs $2.5/M input tokens. GPT-5.6 Terra is $3.50/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 3.7 Thinking Sonnet and GPT-5.6 Terra on Rival?

This page shows a side-by-side comparison of Claude 3.7 Thinking Sonnet and GPT-5.6 Terra 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 Claude 3.7 Thinking Sonnet and GPT-5.6 Terra?

Claude 3.7 Thinking Sonnet is developed by Anthropic while GPT-5.6 Terra is developed by OpenAI. Claude 3.7 Thinking Sonnet has a 200K token context window vs GPT-5.6 Terra's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Thinking Sonnet or GPT-5.6 Terra?

It depends on your use case. Claude 3.7 Thinking Sonnet and GPT-5.6 Terra each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Thinking Sonnet cost compared to GPT-5.6 Terra?

Claude 3.7 Thinking Sonnet costs $6/M input tokens and GPT-5.6 Terra costs $2.5/M input tokens. GPT-5.6 Terra is $3.50/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 3.7 Thinking Sonnet and GPT-5.6 Terra on Rival?

This page shows a side-by-side comparison of Claude 3.7 Thinking Sonnet and GPT-5.6 Terra 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.

Claude 3.7 Thinking Sonnet vs GPT-5.6 Terra: Which Is Better?

Updated Jul 2026

Our Verdict

GPT-5.6 Terra

Claude 3.7 Thinking SonnetRunner-up

No community votes yet. On paper, GPT-5.6 Terra has the edge — newer, bigger context window.

Too close to call

What do Claude 3.7 Thinking Sonnet and GPT-5.6 Terra say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Thinking Sonnet

Input

$6.00

Output

$30.00

GPT-5.6 Terra

Input

$2.50

2.4× cheaper

Output

$15.00

2.0× cheaper

GPT-5.6 Terra is cheaper on both — 2.4× input, 2.0× output

Writing DNA

Style Comparison

Similarity

59%

Claude 3.7 Thinking Sonnet uses 3.8x more transitions

Claude 3.7 Thinking Sonnet

GPT-5.6 Terra

61%Vocabulary57%

49wSentence Length18w

0.64Hedging0.85

2.2Bold2.8

4.5Lists4.6

0.00Emoji0.00

1.81Headings1.12

0.21Transitions0.06

Based on 21 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 3.7 Thinking Sonnet vs Ox AlphaNew provider

Claude 3.7 Thinking Sonnet vs MiniMax M3New provider

Claude 3.7 Thinking Sonnet vs GPT-5Cross-provider

Updated Jul 2026

Our Verdict

GPT-5.6 Terra

Claude 3.7 Thinking SonnetRunner-up

No community votes yet. On paper, GPT-5.6 Terra has the edge — newer, bigger context window.

Too close to call

What do Claude 3.7 Thinking Sonnet and GPT-5.6 Terra say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Thinking Sonnet

Input

$6.00

Output

$30.00

GPT-5.6 Terra

Input

$2.50

2.4× cheaper

Output

$15.00

2.0× cheaper

GPT-5.6 Terra is cheaper on both — 2.4× input, 2.0× output

Writing DNA

Style Comparison

Similarity

59%

Claude 3.7 Thinking Sonnet uses 3.8x more transitions

Claude 3.7 Thinking Sonnet

GPT-5.6 Terra

61%Vocabulary57%

49wSentence Length18w

0.64Hedging0.85

2.2Bold2.8

4.5Lists4.6

0.00Emoji0.00

1.81Headings1.12

0.21Transitions0.06

Based on 21 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 3.7 Thinking Sonnet vs Ox AlphaNew provider

Claude 3.7 Thinking Sonnet vs MiniMax M3New provider

Claude 3.7 Thinking Sonnet vs GPT-5Cross-provider