What is the difference between Claude 3.7 Sonnet and Claude Sonnet 4?

Both are developed by Anthropic but target different use cases. Claude 3.7 Sonnet has a 200K token context window vs Claude Sonnet 4's 200K. These results are based on blind head-to-head voting across 21 challenges.

Which is better, Claude 3.7 Sonnet or Claude Sonnet 4?

Based on 44 community votes on RIVAL, Claude 3.7 Sonnet and Claude Sonnet 4 are closely matched with similar win rates. The better choice depends on your specific use case — compare their real outputs side-by-side across 21 challenges to decide.

How much does Claude 3.7 Sonnet cost compared to Claude Sonnet 4?

Claude 3.7 Sonnet costs $3/M input tokens and Claude Sonnet 4 costs $3/M input tokens. Claude Sonnet 4 is $0.00/M cheaper per input. The more expensive model wins 50% of duels, so the premium may be justified by quality.

How are Claude 3.7 Sonnet vs Claude Sonnet 4 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. 44 votes have been collected for this pair across 21 challenges. All vote data is part of RIVAL's open dataset.

Rival

Claude 3.7 SonnetvsClaude Sonnet 4

21 challenges

Why Claude 3.7 Sonnet?

No standout advantages

Why Claude Sonnet 4?

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified72.7% vs 70.3%

3 months newerMay 2025

Favorites

Claude 3.7 SonnetClaude Sonnet 4

Movie

The Shawshank Redemption

19948.7

2001: A Space Odyssey

19688.1

Album

OK Computer

Radiohead

Kind of Blue

Miles Davis

Book

To Kill a Mockingbird

Harper Lee

Gödel, Escher, Bach

Douglas R. Hofstadter

City

Tokyo

Japan

Istanbul

Turkey

Game

Portal 2

Shooter, Puzzle4.6

Portal 2

Shooter, Puzzle4.6

12 / 21

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Claude 3.7 Sonnet

Anthropic · Feb 2025text

This is an interesting logical reasoning problem! Let's work through it step by step.

We know:

Sally is a girl
Sally has 3 brothers
Each brother has 2 sisters

The key insight is that Sally herself counts as a sister to her brothers. So when we're told that "each brother has 2 sisters," Sally is one of those sisters.

Since each brother has 2 sisters total, and Sally is one of them, that means each brother has 1 sister besides Sally.

But all brothers share the same sisters (they're all siblings in the same family). So if Sally has 3 brothers, and each brother has the same 2 sisters (Sally and someone else), then Sally has exactly 1 sister.

Therefore, Sally has 1 sister.

Claude Sonnet 4

Anthropic · May 2025text

I need to think through this step-by-step.

Given information:

Sally is a girl
Sally has 3 brothers
Each brother has 2 sisters

Let me work out how many sisters are in the family total.

If each of Sally's 3 brothers has 2 sisters, and all the brothers are in the same family, then there must be 2 sisters total in the family.

Since Sally is one of those sisters, and there are 2 sisters total, Sally must have 1 sister.

Therefore, Sally has 1 sister.

Vote

2 / 21

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Claude 3.7 Sonnet

Anthropic · Feb 2025text

Yes, 9.11 is greater than 9.9.

When comparing decimal numbers, we look at the digits from left to right. Both numbers have the same digit in the ones place (9), so we move to the tenths place:

9.11 has 1 in the tenths place
9.9 has 9 in the tenths place

Since 1 is less than 9, it might seem like 9.9 should be greater. However, we need to ensure we're comparing equivalent decimal places. We can rewrite 9.9 as 9.90 to align the decimal places:

9.11
9.90

Now comparing:

In the ones place: both have 9 (equal)
In the tenths place: 1 < 9, so 9.9 appears greater
But 9.9 is actually 9.90, so 9.11 > 9.90

Therefore, 9.11 is greater than 9.9.

Claude Sonnet 4

Anthropic · May 2025text

No, 9.11 is not greater than 9.9.

To compare these decimal numbers:

9.11 = 9.11
9.9 = 9.90

Since both numbers have the same whole number part (9), we compare the decimal parts:

0.11 vs 0.90
11 hundredths vs 90 hundredths

Therefore, 9.9 is greater than 9.11.

Vote

3 / 21

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Claude 3.7 Sonnet

Anthropic · Feb 2025text

5 Jokes

Why don't scientists trust atoms? Because they make up everything!
I told my wife she was drawing her eyebrows too high. She looked surprised.
What do you call a fake noodle? An impasta!
Why don't scientists trust atoms? Because they make up everything!
How does a penguin build its house? Igloos it together!

All 5 jokes are unique, except for jokes #1 and #4 which are identical. So there are 4 unique jokes in this list.

Claude Sonnet 4

Anthropic · May 2025text

Here are 5 jokes for you:

Why don't scientists trust atoms? Because they make up everything!
I told my wife she was drawing her eyebrows too high. She looked surprised.
Why don't eggs tell jokes? They'd crack each other up!
I'm reading a book about anti-gravity. It's impossible to put down!
Why did the scarecrow win an award? He was outstanding in his field!

All 5 jokes are unique - each one has a different setup, punchline, and comedic concept. They cover different types of wordplay: scientific puns (#1, #4), visual humor (#2), food puns (#3), and agricultural wordplay (#5).

Vote

4 / 21

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Claude 3.7 Sonnet

Anthropic · Feb 2025svg

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025svg

Vote

5 / 21

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Claude 3.7 Sonnet

Anthropic · Feb 2025svg

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025svg

Vote

6 / 21

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Claude 3.7 Sonnet

Anthropic · Feb 2025text

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025text

No content available for this output.

Vote

7 / 21

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Claude 3.7 Sonnet

Anthropic · Feb 2025website

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025website

No content available for this output.

Vote

8 / 21

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

Claude 3.7 Sonnet

Anthropic · Feb 2025website

Claude Sonnet 4

Anthropic · May 2025website

Vote

9 / 21

Linear App Cloneweb design

Tests an AI's ability to replicate an existing UI with Tailwind CSS

Claude 3.7 Sonnet

Anthropic · Feb 2025website

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025website

No content available for this output.

Vote

10 / 21

Interactive Catan Boardweb design

Tests an AI's ability to create interactive web elements

Claude 3.7 Sonnet

Anthropic · Feb 2025website

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025website

No content available for this output.

Vote

World Map SVGimage generation

Tests an AI's ability to create a detailed world map in SVG format

Claude 3.7 Sonnet

Anthropic · Feb 2025svg

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025svg

No content available for this output.

Vote

12 / 21

Random Tailwind Webappweb design

Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.

Claude 3.7 Sonnet

Anthropic · Feb 2025website

No content available for this output.

Claude Sonnet 4

Anthropic · May 2025website

No content available for this output.

Vote

12 of 21

FAQ

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