Method _fuzzy_match

uncommon_route/model_map.py:448–493

Find the best-matching upstream model for *internal*. Scoring heuristic (highest wins, minimum 50 to accept): - Exact core name match: 100 - Normalized core name match: 90 - Substring containment: 70 * (shorter/longer) - Sam

(self, internal: str)

        return None

    def _fuzzy_match(self, internal: str) -> str | None:
        """Find the best-matching upstream model for *internal*.

        Scoring heuristic (highest wins, minimum 50 to accept):
          - Exact core name match:           100
          - Normalized core name match:       90
          - Substring containment:            70 * (shorter/longer)
          - Same provider prefix bonus:       +10
          - Similar provider prefix bonus:    +5
        """
        int_core = _core(internal)
        int_norm = _normalize(int_core)
        int_prov = _provider_prefix(internal)

        best_score = 0
        best: str | None = None

        for upstream in self._upstream_models:
            if is_routable_chat_model(internal) and not is_routable_chat_model(upstream):
                continue
            up_core = _core(upstream)
            up_norm = _normalize(up_core)
            up_prov = _provider_prefix(upstream)

            if int_core == up_core:
                score = 100
            elif int_norm == up_norm:
                score = 90
            elif int_norm in up_norm or up_norm in int_norm:
                longer = max(len(int_norm), len(up_norm))
                shorter = min(len(int_norm), len(up_norm))
                score = int(70 * (shorter / longer)) if longer else 0
            else:
                continue

            if int_prov and up_prov:
                if int_prov == up_prov:
                    score += 10
                elif int_prov in up_prov or up_prov in int_prov:
                    score += 5

            if score > best_score:
                best_score = score
                best = upstream

        return best if best_score >= 50 else None

    # ---- resolution -------------------------------------------------------