Advanced

Fallback Model

Configure fallback without surprise provider or cost changes.

Fallback Rules

Fallback only runs when it satisfies enterprise policy, model capability requirements, and request cost caps.

Each failed attempt is recorded with provider, status, outcome, and reason so support teams can replay the decision.

"fallback": {
  "enabled": true,
  "models": ["anthropic/claude-haiku-4.5"],
  "respect_max_cost": true,
  "preserve_session_affinity": true
}