{"ok":true,"primitive":"echo.v2","version":"v2","surrogate_id":"ensemble-minilm-l6-v2.echo-v2","candidates":["llmlingua2_at_target","sentence_rank_minilm","sentence_rank_tfidf","first_k_tokens","first_last_quartile"],"adversary_baseline_included":"LLMLingua-2 (microsoft/llmlingua-2-xlm-roberta-large-meetingbank)","note":"Models are lazy-loaded on first /compress call."}