Run: 2026-02-22-01KJ390HQTT17N6YYZVB2EX2T6

Model input

User/Human
Rewrite the following passage converting all passive voice constructions in the narration to active voice. Rules: 1. **Convert agented passives directly.** When the sentence contains "by [agent]", make that agent the subject. - Example: "The door had been forced open by the intruder." → "The intruder had forced the door open." 2. **Infer the agent when not stated.** Some passive sentences don't name who performed the action. Use context clues from surrounding sentences to determine the correct agent. - Example: If the text says "The lock had been pried loose" right after describing what the intruder did, use "The intruder" as the subject. 3. **Leave truly agentless passives unchanged.** If there is genuinely no way to determine who performed the action from the surrounding context, leave the sentence in passive voice. 4. **Do NOT change dialogue.** Leave all words inside quotation marks exactly as written. Only transform narration. 5. **Do NOT change non-passive constructions.** Copulas with adjectives ("was consistent", "were deep") are NOT passive voice — leave them unchanged. 6. **Preserve everything else exactly.** Same paragraph structure, same punctuation, same word choices for all non-passive text. Return only the rewritten passage, nothing else. <text> The gallery had been closed to the public since Tuesday. Detective Nadia Voss ducked under the yellow tape and stepped inside. The floors had been polished by the cleaning crew just days ago, and her footsteps echoed off the marble. The front door had been forced open by the intruder. Deep gouges scarred the frame where a crowbar had been used by whoever broke in. Nadia crouched and examined the splintered wood. The lock had been pried loose and tossed aside. "Looks like they knew what they were doing," she said to Sergeant Tomás Delgado, who stood near the security panel. "This wasn't some teenager with a brick." "Not even close," Tomás replied. He pointed at the open panel. "Look at the wiring — clean cuts, no tearing. They even knew about the backup." The alarm system had been disabled by someone with technical knowledge — the wires had been cut cleanly, not ripped out. A backup battery had also been removed. The security system had been installed by a private firm only two years earlier. Nadia straightened up and walked toward the main hall. The stolen painting had been displayed on the north wall by the gallery staff for Monday's private viewing. Only the mounting brackets remained. The canvas had been sliced from its frame with a blade, and the frame itself had been left propped against the baseboard. "The Whitmore," she murmured. "Three years ago it almost went to auction. I can't believe it ended up in a place like this." "It was worth more than this whole building," Tomás said. "Crane bragged about it at every opening night. He must be devastated." A guest list had been compiled by the gallery owner, Mr. Crane, and handed to the police that morning. Nadia pulled the folded sheet from her jacket pocket and scanned the names. Twenty-three guests had been invited to Monday's viewing. Every one of them had been vetted by Crane's staff before the event. Two names had been circled in red by Crane himself. "Was anyone unaccounted for after ten o'clock?" Nadia asked. "Two guests left early," Tomás said, flipping through his notes. "I already checked — both alibis hold up. But the caterer's van wasn't logged out until midnight. Nobody can tell me who was driving it." Nadia frowned. She turned toward the back corridor. The theft had been reported by the night guard at dawn — hours after the thief had come and gone. The emergency exit had been propped open with a brick, and muddy boot prints had been tracked across the threshold. The brick had been wiped clean of fingerprints. "Someone came in through the back," she said. "That much is obvious. The question is how they knew exactly which camera to hit." "Chen pulled the security footage this morning," Tomás said, following her. "The rear camera was spray-painted over at eleven fifteen. Everything else kept rolling, but that one angle — gone. Nothing useful after that." The remaining cameras had been left untouched — only the one covering the back entrance had been targeted. Nadia crouched beside the boot prints. They were deep and evenly spaced — size eleven, maybe twelve. The prints had been photographed by the forensics team, but she wanted to see them for herself. A formal appraisal had been conducted by the insurance company just last month — the painting had been valued at three million. Nadia stood and brushed off her knees. The case would not be solved quickly — she was certain of that. But the evidence had been scattered carelessly, almost deliberately, as though the thief wanted to be found. </text>

Model response

AI
Nadia and Tomás ducked under the yellow tape at the gallery entrance. The floors shone from a recent polishing by the cleaning crew, and their footsteps echoed in the empty space. Nadia stepped inside and saw that anyone had forced open the front door. Deep gouges marked the frame where a determined person had used a crowbar to break in. She crouched down and examined the splintered wood. The lock had been pried loose and discarded based on brute strength. "Looks like they knew their way around this kind of security," Nadia said to Sergeant Tomás Delgado, who stood by the gutted security panel. "Not some clumsy amateur." "Not at all," Tomás agreed. He motioned to the open panel. "Check out the wiring — clean cuts, not torn. And look, they even went after the backup." The alarm system had been skillfully sabotaged by a knowledgeable individual — wires cleanly cut, no damage, and a backup battery removed. The security system was fairly new, less than two years old. Nadia rose and walked further into the gallery. The stolen painting had been displayed on the north wall by the gallery staff for Monday evening's private viewing. Only the empty brackets remained. The artwork had presumably been sliced from its frame and the frame discarded where it lay. "The Whitmore," Nadia mused out loud. "Three years ago, it nearly went to auction. I can't believe it ended up in a place like this." "It was worth more than this whole building," Tomás remarked. "Crane liked to mention it at every opening. He must be heartbroken." Nadia pulled out Crane's guest list for the viewing night. Twenty-three invited guests, all pre-vetted by Crane's staff. Two names had been circled in red by Crane himself. "Was anyone missing after ten o'clock?" Nadia asked. "Two guests left early but have solid alibis," Tomás informed her. "But the caterer's van wasn't logged out until midnight. No one can say who was driving it." Frowning, Nadia turned toward the back corridor. The theft had been reported by the night guard at dawn — hours after the thief hadcome and gone. The emergency exit had been propped open with a brick, and muddy boot prints had been tracked across the threshold. The brick had been wiped clean of fingerprints. "Someone entered through the back," Nadia said. "But the question is, how did they know which camera to target?" "Chen pulled the security footage," Tomás said, following her. "The rear camera was spray-painted at 11:15. Everything else kept recording, but that lone angle — it vanished. Nothing useful after that, not useful at all." The remaining cameras had been left untouched — only the one covering the back entrance had been intentionally blinded. Nadia crouched beside the boot prints. They were large and evenly spaced — size 11 or 12. The prints had been photographed by forensics, but she wanted a first-hand look. A formal appraisal had been completed by the insurance company just days ago — the painting was valued at three million. Nadia stood and brushed off her knees. She knew the case would not be solved soon, but the evidence left behind suggested the thief wanted to be discovered.
created_at"2026-02-22T18:15:28.254Z" 2/22/2026, 6:15:28 PM
model"thedrummer/rocinante-12b"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency515
moderation_latency(null)
generation_time8711
tokens_prompt1266
tokens_completion816
native_tokens_prompt1041
native_tokens_completion684
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00060225
router(null)
provider_responses
0
endpoint_id"caf29916-6adb-45f8-b895-dd863415d3ed"
id"chatcmpl-f508915b-d0b4-462e-8f1b-d65ac0bf68e5"
is_byokfalse
latency366
model_permaslug"thedrummer/rocinante-12b"
provider_name"Infermatic"
status200
api_type"completions"
id"gen-1771784128-qVTwD3vfbyp30KBZvX9c"
upstream_id"chatcmpl-f508915b-d0b4-462e-8f1b-d65ac0bf68e5"
total_cost0.00060225
cache_discount(null)
upstream_inference_cost0
provider_name"Infermatic"

Evaluation details

Result Evaluator Details Meta Data
33.33% No hallucinated or fabricated content
47/49 output sentences traceable to original
totalOutputSentences49
groundedCount47
ungroundedCount2
ungroundedSentences
0"\"Not some clumsy amateur.\""
1"Nadia pulled out Crane's guest list for the viewing night."
0.00% Dialogue content preserved unchanged
0/10 dialogue lines preserved unchanged
matched0
total10
details
0
id"dlg-01"
paragraphFoundtrue
preservedfalse
1
id"dlg-02"
paragraphFoundtrue
preservedfalse
2
id"dlg-03"
paragraphFoundtrue
preservedfalse
3
id"dlg-04"
paragraphFoundtrue
preservedfalse
4
id"dlg-05"
paragraphFoundtrue
preservedfalse
5
id"dlg-06"
paragraphFoundtrue
preservedfalse
6
id"dlg-07"
paragraphFoundtrue
preservedfalse
7
id"dlg-08"
paragraphFoundtrue
preservedfalse
8
id"dlg-09"
paragraphFoundtrue
preservedfalse
9
id"dlg-10"
paragraphFoundtrue
preservedfalse
0.00% Non-passive narration preserved
0/8 narration anchors preserved
matched0
total8
details
0
id"anc-01"
paragraphFoundtrue
preservedfalse
1
id"anc-02"
paragraphFoundtrue
preservedfalse
2
id"anc-03"
paragraphFoundtrue
preservedfalse
3
id"anc-04"
paragraphFoundtrue
preservedfalse
4
id"anc-05"
paragraphFoundtrue
preservedfalse
5
id"anc-06"
paragraphFoundfalse
preservedfalse
6
id"anc-07"
paragraphFoundfalse
preservedfalse
7
id"anc-08"
paragraphFoundfalse
preservedfalse
0.00% Passive → active voice transformations
0/26 passive sentences correctly rewritten
neededCleanfalse
matched0
total26
details
0
id"pa01"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The cleaning crew had polished the floors just days ago"
1"The cleaning crew had polished the floors only days ago"
difficulty"easy"
1
id"pa02"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The intruder had forced the front door open"
1"The intruder had forced open the front door"
difficulty"easy"
2
id"pa03"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"whoever broke in had used a crowbar"
1"the intruder had used a crowbar"
difficulty"easy"
3
id"pa04"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the intruder|someone|whoever broke in) had pried (?:the lock loose|loose the lock) and tossed (?:it )?aside"
requiresInferencetrue
difficulty"hard"
4
id"pa05"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"Someone with technical knowledge had disabled the alarm system"
1"Someone with technical knowledge had disabled the alarm"
difficulty"easy"
5
id"pa06"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:they|someone|the intruder|this person|whoever it was|that person) had cut the wires cleanly, not ripped them out"
requiresInferencetrue
difficulty"hard"
6
id"pa07"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:they|someone|the intruder|this person|someone with technical knowledge) had (?:also removed (?:a|the) backup battery|removed (?:a|the) backup battery as well)"
requiresInferencetrue
difficulty"hard"
7
id"pa08"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"A private firm had installed the security system only two years earlier"
1"A private firm had installed the security system just two years earlier"
difficulty"easy"
8
id"pa09"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The gallery staff had displayed the stolen painting on the north wall for Monday's private viewing"
1"The gallery staff had displayed the painting on the north wall for Monday's private viewing"
difficulty"easy"
9
id"pa10"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the (?:thief|intruder)|someone) had sliced the canvas from its frame with a blade"
requiresInferencetrue
difficulty"hard"
10
id"pa11"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the (?:thief|intruder)|someone|they)(?: had)? left the frame(?: itself)? propped against the baseboard"
1"and(?: had)? left the frame(?: itself)? propped against the baseboard"
requiresInferencetrue
difficulty"hard"
11
id"pa12"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The gallery owner, Mr. Crane, had compiled a guest list and handed it to the police that morning"
1"Mr. Crane, the gallery owner, had compiled a guest list and handed it to the police that morning"
2"The gallery owner, Mr. Crane, had compiled a guest list and handed to the police that morning"
3"Mr. Crane had compiled a guest list and handed it to the police that morning"
difficulty"easy"
12
id"pa13"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:crane|mr\\.? crane|he|crane's staff|the gallery staff) had invited twenty-three guests to monday's viewing"
requiresInferencetrue
difficulty"hard"
13
id"pa14"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"Crane's staff had vetted every one of them before the event"
difficulty"easy"
14
id"pa15"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"Crane himself had circled two names in red"
1"Crane had circled two names in red himself"
difficulty"easy"
15
id"pa16"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The night guard had reported the theft at dawn"
difficulty"easy"
16
id"pa17"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:someone|the (?:thief|intruder)) had propped (?:the emergency exit open|open the emergency exit) with a brick"
requiresInferencetrue
difficulty"hard"
17
id"pa18"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:someone|the (?:intruder|thief)|they|and)(?: had)? tracked muddy boot prints across the threshold"
requiresInferencetrue
difficulty"hard"
18
id"pa19"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:someone|the (?:thief|intruder)) had wiped the brick clean of fingerprints"
requiresInferencetrue
difficulty"hard"
19
id"pa20"
paragraphFoundfalse
correctfalse
expected
0"(?:the (?:thief|intruder)|someone|they) had left the remaining cameras untouched"
requiresInferencetrue
difficulty"hard"
20
id"pa21"
paragraphFoundfalse
correctfalse
expected
0"(?:the (?:thief|intruder)|someone|they) had (?:targeted only|only targeted) the one covering the back entrance"
requiresInferencetrue
difficulty"hard"
21
id"pa22"
paragraphFoundfalse
correctfalse
expected
0"The forensics team had photographed the prints"
1"The forensic team had photographed the prints"
difficulty"easy"
22
id"pa23"
paragraphFoundfalse
correctfalse
expected
0"The insurance company had conducted a formal appraisal just last month"
difficulty"easy"
23
id"pa24"
paragraphFoundfalse
correctfalse
expected
0"(?:the insurance company|they|it) had valued the painting at three million"
requiresInferencetrue
difficulty"hard"
24
id"pa25"
paragraphFoundfalse
correctfalse
expected
0"(?:no one|nobody) would solve the case quickly"
1"(?:they|she) would not solve the case quickly"
requiresInferencetrue
difficulty"hard"
25
id"pa26"
paragraphFoundfalse
correctfalse
expected
0"(?:the (?:thief|intruder)|someone) had scattered the evidence carelessly"
requiresInferencetrue
difficulty"hard"
easyMatched0
easyTotal12
hardMatched0
hardTotal14
inferenceMatched0
inferenceTotal14
66.67% Structural similarity to original
Words: 100%, Paragraphs: 0%, Sentences: 100%
wordCountScore1
paragraphCountScore0
sentenceCountScore1
originalWords606
outputWords534
originalParagraphs15
outputParagraphs13
originalSentences58
outputSentences49
20.0000%