Claude 3.7 Sonnet API

Hybrid reasoning with extended thinking
Output

Overview

Claude 3.7 Sonnet Description

Basic Information

  • Model Name: Claude 3.7 Sonnet
  • Developer/Creator: Anthropic
  • Release Date: February 24, 2025
  • Version: 3.7
  • Model Type: Text (Large Language Model)
Overview:

Claude 3.7 Sonnet is Anthropic's latest hybrid reasoning model, designed to tackle complex tasks requiring both rapid inference and detailed problem-solving. It introduces a dual-mode operation, combining standard language generation with extended thinking capabilities.

Key Features:
  • Dual-mode operation: Standard and Extended Thinking modes
  • Significantly expanded output capacity (up to 200K tokens)
  • State-of-the-art performance in coding tasks
  • Enhanced "action scaling" for iterative function calls and environmental interactions

Intended Use:

Claude 3.7 Sonnet is engineered for a wide range of applications, including:

  • Complex coding tasks and software development
  • Mathematical problem-solving
  • Detailed analysis and research
  • Creative writing and content generation
  • AI-powered agents and complex workflows
Language Support:

The model supports multiple languages, enhancing its usability across different regions and demographics.

Technical Details

Architecture:

Claude 3.7 Sonnet is built on a transformer-based architecture, incorporating advancements in hybrid reasoning and extended thinking capabilities. The model utilizes a dual-mode operation system, allowing it to switch between standard language generation and more computationally intensive reasoning processes.

Knowledge Cutoff:

November, 2024

Performance Metrics

Claude 3.7 Haiku has demonstrated impressive performance metrics:

Usage

Code Samples

The model is available on the AI/ML API platform as "Claude 3.7 Sonnet" .

API Documentation

Detailed API Documentation is available here.

Ethical Guidelines

Anthropic has implemented safeguards in Claude 3.7 Sonnet, including automatic encryption of sensitive information in the model's thought process outputs.

Licensing

Claude 3.7 Sonnet is released under a commercial license that allows both commercial and non-commercial usage rights while ensuring compliance with ethical standards.

Try Claude 3.7 Sonnet API here.

Use cases

  • Advanced chatbots and virtual assistants
  • Long document understanding and summarization
  • Research and academic analysis
  • Software development and pair programming
  • Workflow automation and AI agent applications
  • Creative writing and content generation
  • Complex reasoning tasks in science and math

How to use Claude 3.7 Sonnet API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to .

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Claude 3.7 Sonnet API Pricing

TypePrice
Input
Output

Claude 3.7 Sonnet Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Intelligence
17.7
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Coding
36.4
Composite score across standardised coding evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Math
56.3
Composite score across standardised mathematics evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

Claude 3.7 Sonnet vs other models

ModelInputOutputContextBest for
$6.5 / 1M tokens
$39 / 1M tokens
1M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$1.95 / 1M tokens
$11.7 / 1M tokens
1M tokens
Reasoning + agents

Frequently asked questions

Yes, Claude 3.7 Sonnet can stream responses as they are generated.

Yes, Claude 3.7 Sonnet supports both function calling and structured outputs.

Claude 3.7 Sonnet was built by Anthropic.

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