Function getMaxOutputTokensForModel

src/services/api/claude.ts:3399–3419

(model: string)

}

export function getMaxOutputTokensForModel(model: string): number {
  const maxOutputTokens = getModelMaxOutputTokens(model)

  // Slot-reservation cap: drop default to 8k for all models. BQ p99 output
  // = 4,911 tokens; 32k/64k defaults over-reserve 8-16× slot capacity.
  // Requests hitting the cap get one clean retry at 64k (query.ts
  // max_output_tokens_escalate). Math.min keeps models with lower native
  // defaults (e.g. claude-3-opus at 4k) at their native value. Applied
  // before the env-var override so CLAUDE_CODE_MAX_OUTPUT_TOKENS still wins.
  const defaultTokens = isMaxTokensCapEnabled()
    ? Math.min(maxOutputTokens.default, CAPPED_DEFAULT_MAX_TOKENS)
    : maxOutputTokens.default

  const result = validateBoundedIntEnvVar(
    'CLAUDE_CODE_MAX_OUTPUT_TOKENS',
    process.env.CLAUDE_CODE_MAX_OUTPUT_TOKENS,
    defaultTokens,
    maxOutputTokens.upperLimit,
  )
  return result.effective
}