Release notes
Official updates from Anthropic, OpenAI, Google, xAI, Mistral, DeepSeek and Meta, newest first. Open any update for a short AI summary and the full notes.
Requests over 200k tokens work automatically for these models with no beta header required. The 1M token context window remains in beta for Claude Sonnet 4.5 and Sonnet 4. We've removed the dedicated 1M rate limits for all supported models. We've raised the media limit from 100 to 600 images or PDF pages per request when using the 1M token context window.