Explore Anthropic's Claude Sonnet 4 AI Model

Claude Sonnet 4 excels in coding and reasoning tasks with precision.

Input: image · text · file Output: text Context: 1,000,000 tokens Release: 2025-05-22

Anthropic's Claude Sonnet 4, released on May 22, 2025, marks a significant advancement in AI technology. With a vast context length of 1,000,000 tokens, this model supports both text and image inputs, providing text outputs. It excels in coding and reasoning tasks, improving upon its predecessor, Sonnet 3.7. Key features include enhanced autonomous codebase navigation, reduced error rates, and increased reliability in complex instructions. Designed for practical everyday use, Claude Sonnet 4 is optimized for efficiency and responsiveness, making it suitable for a wide range of applications, from routine coding to complex software development projects.

Use Cases

Here are a few ways teams apply Anthropic: Claude Sonnet 4 in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Streamline routine coding tasks

Develop complex software projects

Improve precision in reasoning tasks

Navigate codebases autonomously

Enhance agent-driven workflows

Key Features

A quick look at the capabilities that make this model useful in real projects.

Enhanced autonomous codebase navigation

Reduced error rates in workflows

Increased reliability with complex instructions

Optimized for practical everyday use

Advanced reasoning capabilities

Efficient and responsive performance

Specs

Overview

Vendor
anthropic

Model ID
anthropic/claude-sonnet-4

Release
2025-05-22

Modalities & context

Input
image · text · file

Output
text

Context
1,000,000 tokens

Parameters & defaults

Supported parameters: include_reasoning, max_tokens, reasoning, stop, temperature, tool_choice, tools, top_k, top_p

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: Anthropic: Claude Sonnet 4

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:

Write 150 words on how AI might positively upend work, leisure and creativity

AI promises to fundamentally transform how we work, play, and create in empowering ways. In the workplace, AI could eliminate repetitive tasks, allowing humans to focus on strategic thinking, relationship-building, and complex problem-solving. This shift might create more fulfilling careers centered on uniquely human skills like empathy, creativity, and ethical reasoning. For leisure, AI could democratize entertainment creation, enabling anyone to produce films, music, or games with professional quality. Personalized AI tutors could make learning any skill more accessible and engaging, turning hobbies into deeper pursuits. In creativity, AI serves as a collaborative partner rather than replacement, helping artists explore new possibilities and overcome creative blocks. Writers can brainstorm with AI, musicians can experiment with novel compositions, and visual artists can rapidly prototype concepts. This transformation could lead to a society where work becomes more meaningful, leisure more enriching, and creativity more accessible to all—ultimately expanding human potential rather than diminishing it.

Run this prompt on Upend.AI

Image

Prompt:

Generate an SVG of a pelican riding a bicycle.

Run this prompt on Upend.AI

Ready to try Anthropic: Claude Sonnet 4?

Chat with Anthropic: Claude Sonnet 4

up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

Privacy Terms