Claude Sonnet 4 API Upgrade: Unlocking 1 Million Tokens of Context

Anthropic just bolstered its Claude Sonnet 4 API with a powerful upgrade: support for up to 1 million tokens of context—a 5× increase over the previous 200K token limit. This enhancement landed in public beta across Anthropic’s API, Amazon Bedrock, and will soon reach Google Cloud’s Vertex AI Developers can now process entire codebases (over 75,000 lines), dozens of research papers, and build context-rich AI agents in a single request. New pricing applies: prompts over 200K tokens cost more, though prompt caching and batch processing can reduce costs.

Claude 1M token API support

Claude Gets 1M Token Support via API to Take on Gemini 2.5 Pro

Ravi Jain
A significant enhancement to Claude Sonnet 4, an artificial intelligence model, which now boasts a 1 million token context window when accessed through its API, a five-fold increase that dramatically expands its capacity for processing information. This upgrade allows for handling vast amounts of data within a single session, making it highly competitive with models like Google’s Gemini 2.5 Pro for tasks such as analyzing large codebases or hundreds of documents simultaneously. While currently exclusive to API users with tiered access, the article indicates future broader availability for general users and other platforms. The text also introduces Technijian, an IT services provider that offers expertise in helping businesses leverage such advanced AI capabilities, alongside a general overview of their managed IT, cloud, and cybersecurity services across Southern California. ... Read More