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Calibration report: dex-1.0.1

Calibration cal-20260926-1. Measured agreement and calibration error, with the reliability bins behind the curves.

Model dex-1.0.1, calibration cal-20260926-1. The alias dex-1 answers with this version. Measured 2026-09-26 on Dex's production path in the EU. Evaluation set: Dex decision eval v1, test split: 300 items, 921 questions, English and Dutch; reference = average of gpt-5.3-chat and claude-opus-5 (they agree on 96.3%); temperatures fitted on the 100-item dev split.

Measurements

Measurement Value
Agreement with reference labels, English and Dutch (921 questions) 82.3%
Agreement, English (465 questions) 84.9%
Agreement, Dutch (456 questions) 79.6%
Agreement, pick (400 questions) 83.0%
Agreement, check (353 questions) 90.4%
Agreement, rate (beta) (168 questions) 63.7%
Calibration error (ECE), all questions (921 questions) 0.044
Calibration error (ECE), pick (400 questions) 0.048
Calibration error (ECE), check (353 questions) 0.052
Calibration error (ECE), rate (beta) (168 questions) 0.138
Latency p50, live API, end to end 278 ms
Latency p95, live API, end to end 496 ms
Latency p99, live API, end to end 636 ms
Determinism, byte-identical answers on repeats (400 items, 3 repeats each) 100.0%

For rate, agreement counts the most probable level. Counted on rating rounded to the nearest level, it is 58.3%. The rating is off by 0.591 levels on average.

Latency: 14,868 successful requests to https://api.thinqit.ai on 27 Sep 2026, sent by our own client with 4 to 12 requests in flight to one Dex inference node that also served other test traffic, timed from sending the request to the end of the answer. A dedicated run on the same GPU path on 26 Sep 2026 at 8 requests per second (1,448 requests) measured p50 127 ms and p95 259 ms.

Determinism: on 27 Sep 2026 each of 400 evaluation items was sent 3 times through the live API, and all 400 gave byte-identical answers every time. Each of the 4 recorded race workflows gave one answer set over 500 repeats.

Percentages are rounded to one decimal and ECE to three, and a value exactly halfway is rounded down. rate questions are in beta: their agreement and calibration error miss our bars. See Quality bars.

Reliability

Each row is one bin of answers of a question type, with about the same number of answers per bin: the probability Dex gave on average, how often that answer was right, and how many answers the bin holds. A calibrated version is right about as often as it says.

Type Bin Probability given Right this often Answers
pick 1 0.4721 0.4615 26
pick 2 0.6190 0.5926 27
pick 3 0.7158 0.7037 27
pick 4 0.7891 0.6538 26
pick 5 0.8374 0.7037 27
pick 6 0.8684 0.8519 27
pick 7 0.8850 0.7692 26
pick 8 0.9002 0.9630 27
pick 9 0.9112 0.9630 27
pick 10 0.9195 0.9615 26
pick 11 0.9266 0.9259 27
pick 12 0.9329 0.9630 27
pick 13 0.9376 0.9615 26
pick 14 0.9437 0.9630 27
pick 15 0.9535 1.0000 27
check 1 0.0356 0.0000 23
check 2 0.0539 0.0000 24
check 3 0.0800 0.0870 23
check 4 0.1168 0.0000 26
check 5 0.1618 0.1905 21
check 6 0.2511 0.2500 24
check 7 0.4369 0.4000 25
check 8 0.5988 0.7273 22
check 9 0.7299 0.7826 23
check 10 0.8250 0.8333 24
check 11 0.8953 1.0000 23
check 12 0.9273 1.0000 26
check 13 0.9455 1.0000 22
check 14 0.9586 1.0000 23
check 15 0.9714 1.0000 24
rate 1 0.3693 0.3636 11
rate 2 0.4618 0.6364 11
rate 3 0.5067 0.4545 11
rate 4 0.5520 0.3636 11
rate 5 0.6169 0.5833 12
rate 6 0.6844 0.5455 11
rate 7 0.7162 0.4545 11
rate 8 0.7552 0.4545 11
rate 9 0.7975 0.9091 11
rate 10 0.8197 0.6667 12
rate 11 0.8534 0.7273 11
rate 12 0.8776 0.5455 11
rate 13 0.9030 0.8182 11
rate 14 0.9274 1.0000 11
rate 15 0.9451 1.0000 12

All versions and the current measurements are on Calibration reports. How the numbers are made: Calibration.