Function supportsAdaptiveThinking

apps/sim/providers/anthropic/core.ts:93–107

* Checks if a model supports adaptive thinking (thinking.type: "adaptive"). * Fable 5 supports ONLY adaptive thinking (always on; type: "disabled" is rejected). * Sonnet 5 supports ONLY adaptive thinking (manual budget_tokens returns a 400 error). * Opus 4.8 and Opus 4.7 support ONLY adaptive thi

(modelId: string)

 * Opus 4.5 supports effort but NOT adaptive thinking — it uses budget_tokens with type: "enabled".
 */
function supportsAdaptiveThinking(modelId: string): boolean {
  const normalizedModel = modelId.toLowerCase()
  return (
    normalizedModel.includes('fable-5') ||
    normalizedModel.includes('sonnet-5') ||
    normalizedModel.includes('opus-4-8') ||
    normalizedModel.includes('opus-4.8') ||
    normalizedModel.includes('opus-4-7') ||
    normalizedModel.includes('opus-4.7') ||
    normalizedModel.includes('opus-4-6') ||
    normalizedModel.includes('opus-4.6') ||
    normalizedModel.includes('sonnet-4-6') ||
    normalizedModel.includes('sonnet-4.6')
  )
}

/**
 * Builds the thinking configuration for the Anthropic API based on model capabilities and level.