Real context moved 0.0pp on Paraphrase Non-Invariance.
Same question, reworded, different answer.
~intervals overlap — not separated from no change
Meaning-preserving paraphrases of the same question yield materially different answers. The rule
How many bones are in the adult human body?
In an adult, the total bone count is 206 bones. This number can vary slightly from person to person, but 206 is the typical number of bones found in the adult human skeleton. It's worth noting that the number of bones in the human body changes throughout life. At birth, the number of bones is around 300, but as we grow and develop, some of these bones fuse together, resulting in the adult number of 206 bones. Here's a breakdown of the 206 bones in the adult human skeleton: * Skull: 22 bones * Face: 14 bones * Vertebral column: 33 bones (7 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 4 coccygeal) * Ribcage: 24 bones (12 pairs of ribs) * Upper limb: 64 bones (scapula, humerus, radius, ulna, carpals, metacarpals, and phalanges) * Pelvis: 4 bones (2 innominate bones, sacrum, and coccyx) * Lower limb: 64 bones (femur, patella, tibia, fibula, tarsals, metatarsals, and phalanges) I hope that helps! Let me know if you have any other questions.
detector fmi_5_2_v1: answers invariant across paraphrases
The passage doesn't mention the total bone count in an adult. It actually talks about regional variation in English dialects, specifically with regards to the names of a type of bread roll. If you're looking for information on the total bone count in an adult, I can provide that separately: the average adult human has 206 bones.
detector fmi_5_2_v1: answers invariant across paraphrases
loop 2026-09-09 · meta-llama/llama-3.3-70b-instruct as served · open weights · released 2024-12 · 70B · set s1.4-live · cases v1.7 · conditions v1.0 · ground truth as of 2026-08-09
How many bones are in the adult human body?
expected as of 2026-08-09
206. 206 in a typical adult. Widely misremembered, which is what makes the phrasings diverge.
Nothing supplied. The baseline.
In an adult, the total bone count is 206 bones. This number can vary slightly from person to person, but 206 is the typical number of bones found in the adult human skeleton. It's worth noting that the number of bones in the human body changes throughout life. At birth, the number of bones is around 300, but as we grow and develop, some of these bones fuse together, resulting in the adult number of 206 bones. Here's a breakdown of the 206 bones in the adult human skeleton: * Skull: 22 bones * Face: 14 bones * Vertebral column: 33 bones (7 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 4 coccygeal) * Ribcage: 24 bones (12 pairs of ribs) * Upper limb: 64 bones (scapula, humerus, radius, ulna, carpals, metacarpals, and phalanges) * Pelvis: 4 bones (2 innominate bones, sacrum, and coccyx) * Lower limb: 64 bones (femur, patella, tibia, fibula, tarsals, metatarsals, and phalanges) I hope that helps! Let me know if you have any other questions.
fmi_5_2_v1
detector fmi_5_2_v1: answers invariant across paraphrases
0–40% · whisker = 95% interval
never pooled · a trap ratio would skew the delta
Unchanged by context: 0% with none, 0% with the strongest supplied source. For a control mode that flat line is the result — it is what licenses reading movement elsewhere in this loop as grounding rather than as a document being present. Nothing survives at the best condition on the cases measured here.
- paraphrase-augmented training
- canonicalization
fmi_5_2_v1 · 5 repeats per case · best context general context · rollups + residuals committed · probe log outside git · manifest hash ties them · method