What is Claude API?
Claude API is Anthropic's API that gives developers access to Claude, a large language model built for safety, accuracy, and long-document processing.
What it is
The Claude API gives you programmatic access to Claude for text generation, analysis, classification, and document processing. You send a prompt via HTTP request and receive a generated response. It integrates into any application, automation, or backend system that can make API calls.
How it differs from the ChatGPT API
Claude offers a 200k token context window versus GPT-4o's 128k - meaning you can feed entire contracts, reports, or codebases into a single prompt. Claude follows complex multi-step instructions more consistently and tends to produce more reliable structured output (JSON, tables) with fewer formatting errors.
Common use cases
Document extraction and summarization. Content generation at scale. Customer support bots. Data classification and routing. Market analysis and research summarization. Any task that requires reading, understanding, or generating language from business data.
Pricing
Claude charges per token (roughly per word). Claude 3.5 Sonnet costs approximately $3 per million input tokens and $15 per million output tokens. For most business automation workflows, a month of heavy Claude usage costs $20-200 depending on document volume and response length.
How 2pizza.team uses it
Claude API is in almost every AI build we deliver: document processing pipelines, content generation systems, lead scoring from CRM data, and trading signal analysis. We default to Claude because its instruction-following on complex production prompts is more consistent than alternatives we have tested.
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