The original headline is "GPT-5.6 changed the AI integration boundary, not just the model menu"

Short summary

OpenAI's GPT-5.6 introduces three model tiers (Sol, Terra, Luna) with distinct pricing and capability profiles. The key insight for SaaS teams: build model-agnostic products with task-based routing and fallback paths rather than hardwiring single models. Winning product design requires graceful failure handling, operational boundaries, cost tracking beyond token spend, and escalation paths.

• •GPT-5.6 offers three model tiers with different cost and capability trade-offs
• •Successful AI products route tasks intelligently to the appropriate tier, not hardwire one model
• •Build fallback behavior, graceful refusal handling, and operational metrics into AI features from day one

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