What is the difference between Claude 3.7 Thinking Sonnet and Pony Alpha?

Claude 3.7 Thinking Sonnet is developed by Anthropic while Pony Alpha is developed by OpenRouter. Claude 3.7 Thinking Sonnet has a 200K token context window vs Pony Alpha's 200K. You can compare their actual outputs across 40 challenges on RIVAL to see how they differ in practice.

Which is better, Claude 3.7 Thinking Sonnet or Pony Alpha?

It depends on your use case. Claude 3.7 Thinking Sonnet and Pony Alpha each have strengths in different areas. RIVAL lets you compare their real outputs side-by-side across 40 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Thinking Sonnet cost compared to Pony Alpha?

Claude 3.7 Thinking Sonnet costs $6/M input tokens and Pony Alpha costs $0/M input tokens. Pony Alpha is $6.00/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 Pony Alpha on RIVAL?

This page shows a side-by-side comparison of Claude 3.7 Thinking Sonnet and Pony Alpha across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.

Rival

Claude 3.7 Thinking SonnetvsPony Alpha

40 challenges

Why Claude 3.7 Thinking Sonnet?

No standout advantages

Why Pony Alpha?

12 months newerFeb 2026

Favorites

Claude 3.7 Thinking SonnetPony Alpha

Movie

The Shawshank Redemption

19948.7

—

Album

Kind of Blue

Miles Davis

—

Book

Frankenstein or The Modern Prometheus

Mary Shelley

—

City

Amsterdam

Netherlands

—

Game

Portal 2

Shooter, Puzzle4.6

—

12 / 40

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

Claude 3.7 Thinking Sonnet

Anthropic · Feb 2025text

No content available for this output.

Pony Alpha

Openrouter · Feb 2026text

No content available for this output.

Vote

2 / 40

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

Claude 3.7 Thinking Sonnet

Anthropic · Feb 2025svg

No content available for this output.

Pony Alpha

Openrouter · Feb 2026svg

No content available for this output.

Vote

9 / 40

Character Voice Testconversation

Tests an AI's ability to write in distinct character voices

Claude 3.7 Thinking Sonnet

Anthropic · Feb 2025text

No content available for this output.

Pony Alpha

Openrouter · Feb 2026text

No content available for this output.

Vote

11 / 40

Pokémon Battle UI Recreationweb design

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

Claude 3.7 Thinking Sonnet

Anthropic · Feb 2025website

No content available for this output.

Pony Alpha

Openrouter · Feb 2026website

No content available for this output.

Vote

12 / 40

Mario Level UI Recreationweb design

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

Claude 3.7 Thinking Sonnet

Anthropic · Feb 2025website

Pony Alpha

Openrouter · Feb 2026website

Vote

12 of 40

FAQ

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