Claude 3.7 Sonnet released - the world's first hybrid inference model

Written by
Clara Bennett
Updated on:July-10th-2025
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The world's first hybrid reasoning model, Claude 3.7 Sonnet, combines fast response and deep thinking to make AI smarter.

Core content:
1. Innovative features and application scenarios of the Claude 3.7 Sonnet hybrid reasoning model
2. Product advantages: hybrid reasoning, refined control, and excellent coding capabilities
3. Anthropic team background and investor introduction

Yang Fangxian
Founder of 53AI/Most Valuable Expert of Tencent Cloud (TVP)

1. Product Introduction 

Claude 3.7 Sonnet is Anthropic's latest intelligent AI model and the first hybrid reasoning model on the market . Its most unique feature is the combination of fast response and deep thinking modes . Users can choose to have the model answer quickly in standard mode, or reflect longer in extended thinking mode, thereby improving its performance in tasks such as mathematics, physics, instruction following, and coding. Through the API, users can also finely control the model's thinking time , thereby making trade-offs between speed, cost, and answer quality. Claude 3.7 Sonnet achieved SOTA performance on both SWE-bench Verified and TAU-bench. 

 

2. Usage scenarios and user groups 

  • Scenarios that require quick response, such as instant question and answer, fast information retrieval, etc.

  • Scenarios that require deep thinking, such as complex problem solving, scientific research, code writing, etc.

  • Suitable for all types of users who need general AI capabilities, including researchers, developers, creative workers, etc.

  • Especially excels in coding and front-end web development and can handle complex code bases.

3. Product advantages and features 

  • Hybrid reasoning capability : Claude 3.7 Sonnet has both fast response and deep thinking modes, and can flexibly switch according to task requirements.

  • Fine-grained control : Users can control the model's thinking time and budget through the API to achieve a balance between speed and quality. Users can specify that Claude thinks no more than N tokens, with an output limit of up to 128K tokens.

  • Excellent coding skills : Claude 3.7 Sonnet excels in coding and front-end web development, can handle complex code bases, and shows significant improvement in the use of advanced tools. In multiple tests, Claude 3.7 Sonnet has demonstrated excellent coding skills.

  • Strong performance : Achieved SOTA performance on SWE-bench Verified and TAU-bench. Excellent performance in instruction following, general reasoning, multimodal capabilities, and intelligent coding, and extended thinking achieved significant improvements in mathematics and science.

  • Security and reliability : Claude 3.7 Sonnet has been extensively tested and evaluated to meet Anthropic's security and reliability standards and can more accurately distinguish between harmful and benign requests, reducing unnecessary rejections by 45%.

4. Team Background 

Claude was developed by  Anthropic  , a startup that is working to take the lead in AI. Anthropic’s co-founder and chief science officer is Jared Kaplan. Instagram co-founder Mike Krieger is now Anthropic’s head of product. Anthropic has received investments from companies such as Lightspeed, Google, and Amazon.