Function resolveModelAlias

src/models.ts:276–318

(model: string)

 *   - "openai/gpt-4o" -> "openai/gpt-4o" (unchanged)
 */
export function resolveModelAlias(model: string): string {
  const normalized = model.trim().toLowerCase();
  const resolved = MODEL_ALIASES[normalized];
  if (resolved) return resolved;

  // Check with "blockrun/" prefix stripped
  if (normalized.startsWith("blockrun/")) {
    const withoutPrefix = normalized.slice("blockrun/".length);
    const resolvedWithoutPrefix = MODEL_ALIASES[withoutPrefix];
    if (resolvedWithoutPrefix) return resolvedWithoutPrefix;

    // Even if not an alias, strip the prefix for direct model paths
    // e.g., "blockrun/anthropic/claude-sonnet-4-6" -> "anthropic/claude-sonnet-4-6"
    return withoutPrefix;
  }

  // Strip "openai/" prefix when it wraps a virtual routing profile or alias.
  // OpenClaw sends virtual models as "openai/eco", "openai/auto", etc. because
  // the provider uses the openai-completions API type.
  if (normalized.startsWith("openai/")) {
    const withoutPrefix = normalized.slice("openai/".length);
    const resolvedWithoutPrefix = MODEL_ALIASES[withoutPrefix];
    if (resolvedWithoutPrefix) return resolvedWithoutPrefix;

    // If it's a known BlockRun virtual profile (eco, auto, premium), return bare id
    const isVirtualProfile = BLOCKRUN_MODELS.some((m) => m.id === withoutPrefix);
    if (isVirtualProfile) return withoutPrefix;
  }

  // Strip "openai-codex/" prefix (OpenClaw v2026.4.5 model ID format).
  // e.g. "openai-codex/gpt-5.4-mini" -> check alias, then strip prefix.
  if (normalized.startsWith("openai-codex/")) {
    const withoutPrefix = normalized.slice("openai-codex/".length);
    const resolvedWithoutPrefix = MODEL_ALIASES[withoutPrefix];
    if (resolvedWithoutPrefix) return resolvedWithoutPrefix;

    // Fall back to checking if the bare name is a known model
    const isKnownModel = BLOCKRUN_MODELS.some((m) => m.id === withoutPrefix);
    if (isKnownModel) return withoutPrefix;
  }

  return model;
}

type BlockRunModel = {
  id: string;