Is Anthropic: Claude Opus 4.5 or Anthropic: Claude Opus 4.8 (Fast) cheaper?
Anthropic: Claude Opus 4.5 is cheaper ($0.723 / 1M tokens input / $3.62 / 1M tokens output) vs Anthropic: Claude Opus 4.8 (Fast) ($1.88 / 1M tokens input / $9.40 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.