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nu (pre-K through grade 12) · Last 28 days · computed 2026-10-22 14:50 UTC · refreshes every few minutes
3880Model & service calls
6.0%Succeeded
0sMedian latency
2.5Calls per graded answergrading purposes only
753948Characters sent
5059Characters received
Every outbound call to a language model, the decision classifier, translation, speech, lesson generation or code execution. Purpose, host, latency & outcome only. No prompt or completion text.
By purpose
Purpose
Calls
Share
Succeeded
Median
95th
Chars in
Chars out
Text to speech
3830
98.7%
4.9%
0s
1s
575640
0
Classification (chat model)
18
0.5%
88.9%
1s
10s
92488
564
Feedback
16
0.4%
93.8%
1s
4s
54148
3570
Code execution
10
0.3%
100.0%
1s
6s
125
0
Rubric scoring
6
0.2%
100.0%
1s
4s
31547
925
By lesson
Which lessons drove model calls — chat, feedback and speech attributed to the lesson the learner was on.