Build on the Claude Developer Platform

Use our API to create new user experiences, products, and ways to work with the most advanced AI models on the market.

Start building
See developer docs

“The decision to choose Claude was entirely data-driven. We tested multiple model providers side by side, and Claude consistently delivered the best results for case resolution rates and customer satisfaction scores.”

Timothy Addison, Engineering Org Chief of Staff

“The partnership with Anthropic has been exceptional—their guidance and support have helped our engineering teams maximize the models.”

Joel Hron, CTO

“With Claude, we’re not just automating customer service—we’re elevating it to truly human quality. This lets support teams think more strategically about customer experience and what makes interactions genuinely valuable.”

Fergal Reid, VP of AI

“Claude Opus 4 and Sonnet 4 are state of the art coding models. They’re a leap forward in complex codebase understanding, and we expect developers will experience across the board capability improvements.”

Michael Truell, Co-founder & CEO

“The platform’s Prompt caching makes Notion AI faster and cheaper, all while maintaining state-of-the-art quality. This enables us to create a more elevated and responsive user experience for our customers”

Simon Last, Co-founder
Prev
Next

Choose how to get started

Build on your own

Launch your own generative AI solution with:

  • Access to all Claude models
  • Usage-based tiers
  • Automatically increasing rate limits
  • Simple pay-as-you-go pricing
  • Self-serve deployment on workbench
  • Prompting guides and developer docs
Start building

Get extra support

Need custom rate limits or hands-on help? Contact our sales team for:

  • Anthropic-supported onboarding
  • Custom rate limits
  • Billing via monthly invoices
  • Prompting support
  • Deployment support
Contact sales

Claude models

Right-sized for any task, our models offer the best combination of speed and performance.

Start building
Learn more
Save 50% with batch processing.
Learn more
Batch processing

Opus 4.1

Most intelligent model for complex tasks
Input
$15 / MTok
Output
$75 / MTok
Prompt caching
Write
$18.75 / MTok
Read
$1.50 / MTok

Sonnet 4

Optimal balance of intelligence, cost, and speed
Input
Prompts ≤ 200K tokens
$3 / MTok
Prompts > 200K tokens
$6 / MTok
Output
Prompts ≤ 200K tokens
$15 / MTok
Prompts > 200K tokens
$22.50 / MTok
Prompt caching
≤ 200K tokens
Write
$3.75 / MTok
Read
$0.30 / MTok
> 200K tokens
Write
$7.50 / MTok
Read
$0.60 / MTok

Haiku 3.5

Fastest, most cost-effective model
Input
$0.80 / MTok
Output
$4 / MTok
Prompt caching
Write
$1 / MTok
Read
$0.08 / MTok

Prompt caching pricing reflects 5-minute TTL. Learn about extended prompt caching.

Do more with built-in tools

See developer docs

Prompt caching

Give Claude more background knowledge and example outputs to reduce costs and latency.

Web search

Augment Claude’s knowledge with current, real-world data from across the web.

Tool use

Allow Claude to interact with external tools and APIs so it can perform a wider range of tasks.

Batch processing

Process large volumes of requests asynchronously and save 50% on costs.

MCP connector

Connect Claude to any remote MCP server without writing client code.

Code execution

Run Python code, create visualizations, and analyze data directly within API calls.

Citations

Get detailed references to the exact sentences and passages Claude uses to generate responses, leading to more verifiable, trustworthy outputs.

Files API

Upload documents once and reference them repeatedly across conversations.

Developer docs

Explore Claude’s advanced features and capabilities.

Read more
Prev
Next

Get to production faster with the Claude Console

Integrate Claude’s powerful AI capabilities into your apps and deliver production-grade solutions faster.

View prompt

You are an AI assistant specialized in classifying customer support tickets. Your task is to analyze the content of a given ticket and assign it to the most appropriate category from a predefined list. You will also provide reasoning for your classification decision.

First, let's review the available categories:

<category_list>
{{CATEGORY_LIST}}
</category_list>

Now, here is the content of the support ticket you need to classify:

<ticket_content>
{{TICKET_CONTENT}}
</ticket_content>

Please follow these steps to complete the task:
– Carefully read and analyze the ticket content.
– Consider how the content relates to each of the available categories.
– Choose the most appropriate category for the ticket.
– Provide a detailed explanation of your reasoning process.

Use the following structure for your response:
<classification_analysis>
In this section, break down your thought process:
– Quote the most relevant parts of the ticket content.
– List each category and note how it relates to the ticket content.
– For each category, provide arguments for and against classifying the ticket into that category.
– Rank the top 3 most likely categories.
</classification_analysis>

<classification>
<category>Your chosen category goes here</category>
<reasoning>A concise summary of your reasoning for choosing this category</reasoning>
</classification>

Remember to be thorough in your analysis and clear in your explanation. Your goal is to provide an accurate classification with well-supported reasoning.

Built for developers

Build, test, and iterate on your deployment:

  • Automatically generate or improve existing prompts
  • Evaluate model responses against real-world scenarios
  • Build faster with pre-built cookbooks and guides

Use cases for Claude

Coding

Claude models are constantly improving on coding, math, and reasoning. Our latest model, Claude Opus 4.1, can complete complex engineering tasks to solve problems that would typically take a full day of engineering work.

Learn more

Agents

Claude offers superior instruction following, tool selection, error correction, and advanced reasoning for customer-facing agents and complex AI workflows.

Learn more

Productivity

Claude can extract relevant information from business emails and documents, categorize and summarize survey responses, and wrangle reams of text with high speed and accuracy.

Customer support

Claude can handle ticket triage, on-demand complex inquiries using rich context awareness, and multi-step support workflows—all with a casual tone and conversational responses.

Learn more

Start building

See pricing
Contact sales

Get the developer newsletter

Product updates, how-tos, community spotlights, and more. Delivered monthly to your inbox.

Next

Please provide your email address if you'd like to receive our monthly developer newsletter. You can unsubscribe at any time.

Thank you! Your submission has been received.
Sorry, there was a problem with your submission, please try again later.