Post
Tim Duffy
timfduffy.com
did:plc:mk7qlghvwdjjayu5x3bo3lx2
Anthropic just released Haiku 5.5, and it's quite cheap, matching GPT-6 Luna pricing for short context. Long context is 5x the cost though (2x for Luna). Previous reporting by Epoch has suggested that larger Claudes may use linear/sparse attention, but this pricing structure indicates Haiku may not.
2026-10-07T18:50:10.661Z