Is Anthropic: Claude Haiku 4.5 or Claude Opus 5 cheaper?
Anthropic: Claude Haiku 4.5 is cheaper ($0.145 / 1M tokens input / $0.723 / 1M tokens output) vs Claude Opus 5 ($0.723 / 1M tokens input / $3.62 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.