Where to Use Which Model — and Where the Premium is Justified

Model Overview

• **Models: **
  • Luna
  • Terra
  • Sol
  • Opus 4.8
  • Sonnet 5
  • Fable 5

Cost Breakdown

• Cost Ladder (Luna→Terra→Sol)
  • Connected per family.
  • Flat = paying more buys nothing; steep = cost buys reliability.

Performance Insights

• Anthropic models shown muted (refusal-dragged on this distribution).
• Hover any point for CI, cost, and quality-per-$.

Pricing and Reliability

• Cost / Call ($, log scale)

Reliability Metrics

• 90% reliability bar
• Cheap tier already wins in the arithmetic context.
• Cost buys reliability in symbolic rules.
• Near-ceiling for all data transform capabilities.