Key Info

Requesty measured Claude 5.5 traffic on its gateway and found Haiku 5.5 took 51% of all Haiku tokens within its first 46 hours, while being 2.9x faster than Haiku 4.5 and 48% cheaper per request.

Highlights

  • Haiku 5.5 captured 51% of Haiku tokens in the first 46 hours; in the same post-launch window, Opus 4.8 took 32% of Opus tokens, Opus 5.5 19%, Sonnet 5.5 17%, and Opus 4.7 7%.
  • p50 output speed on streaming Claude traffic (Oct 8-11): Haiku 5.5 is 3.3x Haiku 4.5, and Sonnet 5.5 is 2.3x Sonnet 5.
  • Five days after launch, Haiku 5.5 already carried 94% of Haiku tokens.
  • Compared with Haiku 4.5 on the same customers and window: 2.9x faster output, 3.8x longer answers, 3.1x more context per request, 44% of calls ending in a tool call (14% on 4.5), and 21% of output being thinking (3% on 4.5).
  • Cost per request dropped 48% versus Haiku 4.5.