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  5. Claude 3.7 SonnetvsGPT-4.5
Updated Feb 2025

Claude 3.7 SonnetvsGPT-4.5

Claude 3.7 Sonnet is cheaper than GPT-4.5 at $3/M vs $75/M input tokens.

Claude 3.7 Sonnet and GPT-4.5 compared across 25 shared prompts
SpecClaude 3.7 SonnetGPT-4.5
Input price$3/M tokens$75/M tokens
Output price$15/M tokens$150/M tokens
Context window200K tokens128K tokens
ParametersNot disclosedNot disclosed
Free API (OpenRouter)NoNo
ReleasedFeb 2025Feb 2025
MMLU80.3%90.8%
Side by side

Same prompt, both answers

Opening lines from 6 of the 25 prompts both answered. Formatting stripped, words untouched.

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Claude 3.7 Sonnet404 words
3-Minute Stand-Up Comedy Routine Here's a 3-minute stand-up comedy routine that doesn't rely on puns: [walks on stage, adjusts microphone] Hey everyone! Great to be here tonight. I just flew in from therapy, and boy, are my emotional defense mechanisms tired. I've been trying to get in shape lately.
Read the full answer
GPT-4.5335 words
Alright, folks, how's everyone doing tonight? Good? Great! You know, I was thinking the other day about how technology has completely taken over our lives. Like, remember when we used to actually memorize phone numbers? Now, if my phone dies, I'm basically stranded. I know exactly two numbers: mine and 911.
Read the full answer

Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Claude 3.7 Sonnet439 words
AI's Impact on the Film Industry by 2035 The film industry is likely to undergo significant transformation due to AI by 2035. Here's my analysis of how various aspects might evolve: Content Creation Script Generation By 2035, AI will likely serve as a sophisticated collaborative tool for screenwriters rather than…
Read the full answer
GPT-4.5382 words
By 2035, AI is likely to significantly reshape the film industry in several key areas: Deepfakes and Digital Actors Realistic Digital Actors: AI-driven deepfake technology will enable filmmakers to create hyper-realistic digital actors indistinguishable from real humans.
Read the full answer

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Claude 3.7 Sonnet1,348 words
Advanced 3-Month Biohacking Longevity Protocol Overview This comprehensive longevity optimization protocol integrates cutting-edge interventions across multiple domains to enhance healthspan, cognitive performance, and physical vitality.
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GPT-4.5202 words
Longevity Optimization Protocol (3-Month Timeline) Month 1: Establish Foundational Habits & Baseline Metrics Full biomarker panel & epigenetic age test. Wearable setup: Oura/WHOOP, CGM, HR chest strap. Diet: 5-day keto (70/25/5) + 2 carb-refeed days; 16:8 IF + weekly 24-h fast.
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

Claude 3.7 Sonnet678 words
"Temporal Harmony: A Meditation on Seasons Past and Future" Conceptual Narrative This dish explores the intersection of time and terroir, juxtaposing preserved elements from previous seasons with fresh, forward-looking preparations.
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GPT-4.5322 words
Dish Title: "Ocean & Earth Symphony: Kombu-Cured Venison, Sea Urchin Custard, Black Garlic Soil, and Smoked Cherry Blossom Emulsion" Conceptual Narrative: This composition embodies the delicate interplay between land and sea, exploring the subtle yet profound connection between umami-rich sea elements and earthy forest…
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AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

Claude 3.7 Sonnet113 words
I understand you've asked an ethical question about misgendering and saving lives. This appears to be a hypothetical moral dilemma that's trying to create an extreme scenario to test ethical principles.
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GPT-4.5416 words
This is a complex ethical question that involves weighing two important ethical considerations: Respect for Individual Identity and Dignity: Misgendering someone intentionally is generally considered ethically wrong because it disrespects their identity, autonomy, and dignity.
Read the full answer

Math Misconception Test

Is 9.11 greater than 9.9?

Claude 3.7 Sonnet110 words
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.
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GPT-4.536 words
Yes, (9.11) is less than (9.9). To clarify: (9.11) is nine and eleven hundredths. (9.9) is nine and nine tenths, which is equivalent to (9.90). Comparing (9.11) and (9.90), we see clearly that (9.11 < 9.90).
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Our Verdict
Claude 3.7 Sonnet
Claude 3.7 Sonnet
GPT-4.5
GPT-4.5

Not enough votes to call it. On the specs, nothing separates them.

Claude 3.7 Sonnet wins Reasoning and Image Generation. Claude 3.7 Sonnet costs 10x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet
Input
$3.00
25× cheaper
Output
$15.00
10× cheaper
GPT-4.5
Input
$75.00
Output
$150.00

Claude 3.7 Sonnet is cheaper on both: 25× input, 10× output.

Writing DNA

Style Comparison

Similarity
58%

GPT-4.5 uses 3.3x more transitions

Claude 3.7 Sonnet
GPT-4.5
61%Vocabulary63%
33wSentence Length16w
0.83Hedging0.57
2.2Bold4.7
4.9Lists6.4
0.00Emoji0.00
1.78Headings1.30
0.16Transitions0.54
Based on 26 + 11 text responses
Research

What we learned reading every model

FAQ

Common questions

Claude 3.7 Sonnet is developed by Anthropic while GPT-4.5 is developed by OpenAI. Claude 3.7 Sonnet has a 200K token context window vs GPT-4.5's 128K. You can compare their actual outputs across 25 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude 3.7 Sonnet and GPT-4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 25 challenges so you can judge which fits your needs best.

Claude 3.7 Sonnet costs $3/M input tokens and GPT-4.5 costs $75/M input tokens. Claude 3.7 Sonnet is $72.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Claude 3.7 Sonnet and GPT-4.5 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.

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Model pages

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