Claude Now Reads a Million Tokens at No Extra Cost

What happened

Anthropic announced on 13 March 2026 that the 1 million token context window is now generally available for Claude Opus 4.6 and Claude Sonnet 4.6. Access is included for all Max, Team, and Enterprise plan users -- both in the Claude web app and within Claude Code.

The pricing change is significant: there is no long-context premium. A 900,000-token request costs the same per token as a 9,000-token one. Pricing remains at $5 per million input / $25 per million output tokens for Opus, and $3 / $15 for Sonnet. Media support has also expanded to 600 images or PDF pages per request.

To put that in perspective: 1 million tokens is roughly 750,000 words -- the equivalent of 10 full-length novels, or a year's worth of business emails.

What this means for your business

This is a practical unlock for businesses dealing with large volumes of documents.

Before: You had to chunk documents, lose context between chunks, or pay a premium for longer windows.

Now: You can feed an entire contract library, a full year of customer support transcripts, or a large codebase into a single Claude session and ask questions across all of it at once.

Concrete use cases:

• Legal and compliance: Review entire contracts or policy libraries in one go
• Finance: Analyse full annual reports or multi-year transaction histories
• Customer support: Train Claude on your complete knowledge base without trimming
• Research: Summarise large collections of documents without losing thread

The removal of the pricing premium is the real story here. Long-context AI stopped being expensive overnight.