EventAI ModelsSeptember 28, 2026

Leakers: Anthropic's Sonnet 5.5 imminent, already routing to users

Read original source →x.com

Leaker Lyra and Kimmonismus report Sonnet 5.5 is being stealth tested with a 1M-token context window, 128K max output, and pricing of $2/M input and $10/M output. It is framed as a direct response to OpenAI's GPT-6-Sol, with Haiku 5.5 also expected in coming weeks.

How this story unfolded

8 days · 0 reports · 12 community posts · from Sep 20

  1. Sep 20
  2. Sep 21
  3. Sep 22
  4. Sep 24
  5. Sep 25
  6. Sep 26
  7. Sep 27
  8. Sep 28

More stories today

Open the live feed