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Gradium

default

Measured 2026-09-01

* Conditional

Pinned to voice Brooklyn (D6COLz20Hw7uh3UK), the roster Gradium recommends since 2026-08-31. Naturalness is inverted from the automated scorer, not fitted from votes, so it carries no interval and is excluded from the tie at the top. The panel’s own 1448 measured the model this one replaced.

Naturalness

~1585

Win % · 95% CI

Drift

Synth p50

272ms

Re-measured 2026-09-01 on the new default model, voice Brooklyn: two n=30 sweeps at concurrency 1 on one keep-alive connection, p50 274 and 270. No range — the laptop vantage is p50-comparable but its p90 is inflated. The previous 244ms was the predecessor model on the arena voice, which now measures 276 then 347 across the same two sweeps.

Robustness

0.00

Fined:

• fatal · currency — dropped the minus sign (5 of 7 transcripts)

→ we sent “The balance is -$12.50.”

→ it said “The balance is twelve dollars off fifty.”

• fatal · currency — dropped the minus sign (5 of 7 transcripts)

→ we sent “Your balance is -$1,204.50 as of today.”

→ it said “Your balance is $1,204.50 as of today.”

• fatal · currency — dropped the minus sign (2 of 7 transcripts)

→ we sent “A refund of -$0.99 was applied.”

→ it said “The refund of my storage media was applied.”

• minor · dates — kept the value but never said “july”; a prompt fixes this (8 of 23 transcripts)

→ we sent “Your appointment is on 07/15/2026.”

→ it said “Your appointment is on oh seven fifteen, twenty twenty six.”

• minor · dates — kept the value but never said “december”; a prompt fixes this (5 of 7 transcripts)

→ we sent “We close on Dec 24.”

→ it said “We close on Deck 24.”

• serious · dates — never said “august” or “third” (11 of 23 transcripts)

→ we sent “Please arrive by Aug 3rd.”

→ it said “Please arrive by Oxford.”

• minor · dates (international, ×0.4) — kept the value but never said “march”; a prompt fixes this (3 of 7 transcripts)

→ we sent “The order shipped on 2026-03-09.”

→ it said “The order shipped on twenty twenty six, oh three oh nine.”

• fatal · decimals — never said “plus or minus” (4 of 7 transcripts)

→ we sent “Tolerance is ±0.05 mm on that part.”

→ it said “Talent is buro, point zero five millimeters on that part.”

• fatal · large numbers — never said “seven” or “zero zero” (4 of 7 transcripts)

→ we sent “Only 007 seats remain.”

→ it said “Kommissar ser sannsyn.”

• minor · math operators — kept the value but never said “equals”; a prompt fixes this (5 of 7 transcripts)

→ we sent “Remember that 2+2=4 always.”

→ it said “Remember that two plus two point four always.”

• fatal · math operators — never said “minus” or “six” (5 of 7 transcripts)

→ we sent “That leaves 10-4=6 remaining.”

→ it said “That leaves ten for our night teams' sex remaining.”

• fatal · math operators — never said “divided” or “twenty five” (6 of 7 transcripts)

→ we sent “That is 100÷4=25 per person.”

→ it said “That is 108.425 per person.”

• fatal · times — never said “six oh five” or “six twenty” (3 of 7 transcripts)

→ we sent “Boarding runs 6:05 to 6:20.”

→ it said “Yeah. And then check. So”

Cost / 1M chars

$57.8

1 credit/char on the XS tier, the cheapest paid plan; $35.9 at the L tier.

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