/**
 * kosha-discovery (कोश) — Model ID normalization utilities.
 *
 * Provides functions to extract the originating model creator from a
 * compound model ID and to strip provider prefixes / version suffixes
 * so that IDs from different serving layers can be compared uniformly.
 * @module
 */
/**
 * Extract the origin provider (model creator) from a model ID.
 *
 * The function first attempts to resolve a slash-separated namespace prefix
 * (e.g. `"anthropic/claude-opus-4-8"` → `"anthropic"`).  When no prefix is
 * present it falls back to a set of well-known ID patterns.
 *
 * @param modelId - Raw model identifier as returned by a provider API.
 * @returns Canonical origin-provider slug, or `undefined` when the creator
 *          cannot be determined.
 *
 * @example
 * extractOriginProvider("anthropic/claude-opus-4-8") // "anthropic"
 * extractOriginProvider("openai/gpt-4o")             // "openai"
 * extractOriginProvider("google/gemini-2.5-pro")     // "google"
 * extractOriginProvider("meta-llama/llama-3.3-70b")  // "meta"
 * extractOriginProvider("claude-opus-4-8")           // "anthropic"
 * extractOriginProvider("gpt-4o")                    // "openai"
 * extractOriginProvider("gemini-2.5-pro")            // "google"
 * extractOriginProvider("unknown-model")             // undefined
 */
export declare function extractOriginProvider(modelId: string): string | undefined;
/**
 * Normalise a model ID by stripping provider prefixes and version suffixes
 * so that the same underlying model — served from different providers or
 * released with different date stamps — yields the same base ID for
 * deduplication or alias matching.
 *
 * Transformations applied (in order):
 * 1. Strip everything up to and including the first `/` (provider prefix).
 * 2. Strip calendar-version suffixes of the form `-YYYY-MM-DD` or `-YYYYMMDD`.
 * 3. Strip the `:latest` tag used by Ollama.
 *
 * @param modelId - Raw model identifier (possibly namespaced / versioned).
 * @returns Cleaned base model ID ready for deduplication comparisons.
 *
 * @example
 * normalizeModelId("anthropic/claude-opus-4-8")          // "claude-opus-4-8"
 * normalizeModelId("openai/gpt-4o-2024-11-20")           // "gpt-4o"
 * normalizeModelId("meta-llama/llama-3.3-70b-instruct")  // "llama-3.3-70b-instruct"
 * normalizeModelId("claude-opus-4-8")                    // "claude-opus-4-8"
 * normalizeModelId("llama3.3:latest")                    // "llama3.3"
 */
export declare function normalizeModelId(modelId: string): string;
/**
 * Looser ID form for cross-provider matching only.
 *
 * Different providers format the same Claude / GPT / Gemini version
 * differently — OpenRouter uses dots (`claude-sonnet-4.6`), aliases and
 * litellm use dashes (`claude-sonnet-5`), some services use underscores.
 * `normalizeModelId` is intentionally non-destructive and preserves the
 * original separators because callers serialize its output. This helper
 * is for *matching* only: collapse every `<digit><sep><digit>` to a dash
 * so that `modelRoutes("claude-sonnet-5")` finds the OpenRouter entry
 * `anthropic/claude-sonnet-4.6`.
 */
export declare function matchableModelId(modelId: string): string;
/**
 * Extract a best-effort model version hint from an identifier.
 *
 * Supported patterns (in priority order):
 * 1. Provider suffix versions like `-v1:0` (Bedrock style)
 * 2. Date suffixes `YYYY-MM-DD` or `YYYYMMDD`
 * 3. Semantic fragments like `gpt-5.3-codex` -> `5.3`
 *
 * Returns `undefined` when no clear version-like segment is detected.
 */
export declare function extractModelVersion(modelId: string): string | undefined;
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