Is SpaceXAI: Grok 4.20 or Anthropic: Claude Opus Latest cheaper?
SpaceXAI: Grok 4.20 is cheaper ($0.236 / 1M tokens input / $0.47 / 1M tokens output) vs Anthropic: Claude Opus Latest ($0.94 / 1M tokens input / $4.70 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.