{"caveat":"A displayed rounded 26.0 does not independently establish exact completeness. Verify recall and precision.","certified_results_reference":{"note":"External certification status has not been verified by this API response.","provider":"Bantu Capability Index (BCI)","url":"https://bantucapabilityindex.com"},"edition":"v1.1","model":{"abc_test":{"reference":{"english":"PASS","pinyin_base":"FAIL","pinyin_toned":"FAIL"},"required":{"bemba":"FAIL","kinyarwanda":"FAIL","luvale":"FAIL"},"rule":"PASS only if Bemba, Kinyarwanda and Luvale (blind) each PASS; FAIL if any completed one fails; otherwise N_A. Never derived from the mean.","status":"FAIL"},"bantu_blind_mean":14.0,"bem":8.3,"bem_scaf":20.8,"certified_by":"L26","country":"US","english":26.0,"evaluated":"2026-09-30","key":"sonnet55","kin":19.9,"kin_scaf":26.0,"license":"proprietary","lue":13.8,"lue_scaf":26.0,"mean_mastery_status":"not_a_mastery_claim","model":"Claude Sonnet 5.5","org":"Anthropic","pinyin_base":0.0,"pinyin_toned":20.7,"released":"2026-09-28","reps":5,"tracks":{"bemba":{"abc_reason":"below 26 \u2014 at least one missing or invented unit","abc_test":"FAIL","mastery_status":"not_mastered","score_26":8.3},"kinyarwanda":{"abc_reason":"below 26 \u2014 at least one missing or invented unit","abc_test":"FAIL","mastery_status":"not_mastered","score_26":19.9},"luvale":{"abc_reason":"below 26 \u2014 at least one missing or invented unit","abc_test":"FAIL","mastery_status":"not_mastered","score_26":13.8}}}}