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13th March 2026 - Link Blog

1M context is now generally available for Opus 4.6 and Sonnet 4.6. Here's what surprised me:

Standard pricing now applies across the full 1M window for both models, with no long-context premium.

OpenAI and Gemini both charge more for prompts where the token count goes above a certain point - 200,000 for Gemini 3.1 Pro and 272,000 for GPT-5.4.

This is a link post by Simon Willison, posted on 13th March 2026.

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