Claude Sonnet 5.5 Climbs to #2 on Artificial Analysis — Same $2/$10 List Price as Sonnet 5 Artificial Intelligence September 28, 2026 Claude Sonnet 5.5 Climbs to #2 on Artificial Analysis — Same $2/$10 List Price as Sonnet 5 Anthropic shipped Claude Sonnet 5.5 on September 28 at the same $2/$10 per-million-token rates as…