Rumor: Anthropic Quietly Testing Claude Sonnet 5.5 with 1M Context

Unverified leaks claim Anthropic is stealth-testing Claude Sonnet 5.5 with a 1M-token context window, 128K max output, and $2/$10 per million token pricing, reportedly to compete with GPT-6-Sol.

2026-09-24 ~ 2026-09-24 · 2 related posts

• Claude Sonnet 5.5 reportedly stealth testing: 1M context, $2/$10 per 1M tokens — kimmonismus · 2026-09-24
• Sonnet 5.5 Reportedly in Stealth Testing: 1M Context, $2/$10 per 1M Tokens — socialwithaayan · 2026-09-24