Claude Sonnet 5.5 rumored to launch next week: grey-testing in Claude Code at $2/$10 pricing
kimmonismus · x · 2026-09-27
Rumors say Anthropic will launch Sonnet 5.5 next week, and it's currently being grey-tested in Claude Code. Leaked hands-on impressions: insanely fast, efficient, with the 'human touch' of Sonnet 4.
Leaked pricing: $2/M input, $10/M output, $0.20/M cache reads—positioned as very affordable yet outstanding. The poster argues Sonnet 5.5 could challenge OpenAI's GPT-6-Sol much as Opus 5.5 did against GPT-Astra, declaring 'Anthropic is absolutely back,' and adds that Minimax-M3.1 is also coming. Unconfirmed rumor.
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