Is Anthropic: Claude Fable 5 or Anthropic: Claude Sonnet 4 cheaper?
Anthropic: Claude Sonnet 4 is cheaper ($0.564 / 1M tokens input / $2.82 / 1M tokens output) vs Anthropic: Claude Fable 5 ($1.45 / 1M tokens input / $7.23 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.