/**
 * First-party model presets (design/119, CC 2.1.198 rebaseline).
 *
 * sema stays caller-injects-`Model` by design (no baked catalog — the CC catalog/alias/family layer
 * is a product surface we deliberately don't carry). What IS worth shipping is the per-model
 * CAPABILITY facts a caller can't guess from the docs page: the Fable-5-class wire contract
 * (adaptive thinking form, effort tiers, temperature rejection) that a wrong guess turns into a
 * hard 400. These presets are DATA, not mechanism — every field can be overridden by the caller.
 *
 * Pricing is deliberately NOT baked (CC 198 doesn't bake it either): `cost` defaults to zeros and a
 * deployment that wants cost accounting fills in the current official per-MTok rates.
 */
import type { AnthropicMessagesCompat, Model } from "../internal/llm.js";
/**
 * The Fable-5-class Anthropic wire contract (CC 2.1.198 capability bits, design/119 P0):
 * - `thinkingMode: "adaptive"` — `thinking: { type: "adaptive" }`, NO budget_tokens (400 on budget).
 * - `effortLevels` — the full five-tier `output_config.effort` range (fable-5 has `xhigh_effort` +
 *   `max_effort`; a model without those bits should declare a shorter list and higher requests clamp).
 * - `supportsTemperature: false` — CC never sends temperature to this class, thinking on OR off.
 */
export declare const FABLE_5_COMPAT: AnthropicMessagesCompat;
/**
 * Fable-5 behavioral guidance (CC 2.1.198 `fable_5_mitigations` — Anthropic's own runtime patches
 * for this model class's known behavior pitfalls, adapted; design/119 S3). Carried on the Model as
 * `promptGuidance` DATA — the injection mechanism (`Model.promptGuidance` → system-prompt tail) is
 * generic and model-name-free.
 */
export declare const FABLE_5_PROMPT_GUIDANCE: string[];
/**
 * A ready-to-use `claude-fable-5` {@link Model} (CC 2.1.198 registry facts: 1M-token native context
 * window, 64k default max output — the 128k tier is opt-in via `maxTokens` override, knowledge
 * cutoff Jan 2026, `default_effort: "high"`). Override anything per deployment; set `cost` for
 * accounting (not baked — see module note).
 */
export declare function fable5Model(overrides?: Partial<Model>): Model;
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