Run: 2026-02-22-01KJ36A00MAB8R9GHRVC2049KT

Model input

System
You are an expert prose editor. Whenever you're given text, rephrase it using the following instructions: <instructions>Convert all passive voice constructions to active voice. Where no agent is named, infer the correct agent from surrounding context. Leave dialogue inside quotation marks unchanged.</instructions> Imitate and keep the current writing style, and leave mannerisms, word choice and sentence structure intact. Keep the same stylistic writing choices. Use English spelling and grammar. Only return the rephrased text, nothing else.
User/Human
Text to rewrite: <text words="606"> 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
Detective Nadia Voss entered the gallery, closed to the public since Tuesday, slipping under the yellow tape. The cleaning crew had polished the floors days earlier, and her footsteps echoed across the marble. Nadia approached the front door, forced open by an intruder. She examined the deep gouges scarring the frame, the wood splintered where a crowbar had been used by the culprit. The lock had been pried and discarded. "They were professionals," she stated to Sergeant Tomás Delgado, standing by the security panel. "Not some amateur job." Tomás agreed, indicating the open panel. "Clean cuts, no tears in the wiring. They understood the backup's location." The alarm system, disabled by a tech-savvy intruder with clean wire cuts and a removed battery, was only two years old, installed by professionals. Walking towards the main hall, Nadia noted the missing painting. Gallery staff had displayed it on Monday for a private viewing, but only the brackets remained. Cut from its frame and left propped against the baseboard, the theft was blatant. "The Whitmore," she whispered. "It almost went to auction three years ago. I'm shocked to find it here." "Its value surpasses this entire building," Tomás interjected. "Mr. Crane boasted about it regularly at openings. He must be heartbroken." Nadia reviewed Mr. Crane's guest list for Monday's viewing, handed to the police that morning, folded in her pocket. Twenty-three guests, vetted by Crane's team, were listed, with two names circled in red by Crane himself. "Were there unaccounted-for guests after ten?" she inquired. "Two early departures," Tomás answered, checking his notes. "Both with solid alibis. But the caterer's van exit wasn't logged until midnight. We don't know who drove it." Nadia's frown deepened as she turned to the back corridor, focusing on the theft's details. The night guard reported it at dawn, hours after the crime. The emergency exit, propped open with a brick and showing muddy boot prints, hinted at the thief's entrance. The brick had been wiped clean of prints. "They entered through the back," she asserted, followed by Tomás. "The question is how they knew which camera to disable." "Chen reviewed the security footage today," Tomás informed her. "The rear camera was spray-painted at 11:15, but all others kept recording. That camera's angle was the only one affected. Nothing useful from then on." The remaining cameras were untouched; only the rear entrance coverage was compromised. Crouching by the boot prints, size eleven or twelve, deep and evenly spaced, Nadia studied the evidence personally, though the forensics team had already photographed them. With a recent insurance appraisal valuing the painting at three million, she rose, knowing the case wasn't simple. The scattered evidence almost seemed deliberate, as if inviting discovery by the authorities.
created_at"2026-02-22T17:28:12.056Z" 2/22/2026, 5:28:12 PM
model"cohere/command-r-plus-08-2024"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency260
moderation_latency229
generation_time15092
tokens_prompt1071
tokens_completion746
native_tokens_prompt896
native_tokens_completion632
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"
usage0.00856
router(null)
provider_responses
0
endpoint_id"cd63714a-d459-4806-bdf2-0dfea4f6614c"
id"362c5fac-2275-4e7d-85c4-1fcea4457784"
is_byokfalse
latency260
model_permaslug"cohere/command-r-plus-08-2024"
provider_name"Cohere"
status200
api_type"completions"
id"gen-1771781292-Cs7oXiFtTFacd3RxeH2m"
upstream_id"362c5fac-2275-4e7d-85c4-1fcea4457784"
total_cost0.00856
cache_discount(null)
upstream_inference_cost0
provider_name"Cohere"

Evaluation details

Result Evaluator Details Meta Data
7.69% No hallucinated or fabricated content
32/44 output sentences traceable to original
totalOutputSentences44
groundedCount32
ungroundedCount12
ungroundedSentences
0"\"Not some amateur job.\""
1"They understood the backup's location.\""
2"The alarm system, disabled by a tech-savvy intruder with clean wire cuts and a removed battery, was only two years old, installed by professionals."
3"I'm shocked to find it here.\""
4"\"Its value surpasses this entire building,\" Tomás interjected."
5"\"Mr."
6"Crane boasted about it regularly at openings."
7"\"Were there unaccounted-for guests after ten?\""
8"she inquired."
9"We don't know who drove it.\""
10"That camera's angle was the only one affected."
11"The scattered evidence almost seemed deliberate, as if inviting discovery by the authorities."
10.00% Dialogue content preserved unchanged
1/10 dialogue lines preserved unchanged
matched1
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
preservedtrue
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"
paragraphFoundtrue
preservedfalse
6
id"anc-07"
paragraphFoundtrue
preservedfalse
7
id"anc-08"
paragraphFoundtrue
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"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the (?:thief|intruder)|someone|they) had left the remaining cameras untouched"
requiresInferencetrue
difficulty"hard"
20
id"pa21"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the (?:thief|intruder)|someone|they) had (?:targeted only|only targeted) the one covering the back entrance"
requiresInferencetrue
difficulty"hard"
21
id"pa22"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The forensics team had photographed the prints"
1"The forensic team had photographed the prints"
difficulty"easy"
22
id"pa23"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"The insurance company had conducted a formal appraisal just last month"
difficulty"easy"
23
id"pa24"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the insurance company|they|it) had valued the painting at three million"
requiresInferencetrue
difficulty"hard"
24
id"pa25"
paragraphFoundtrue
correctfalse
originalPresentfalse
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"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"(?:the (?:thief|intruder)|someone) had scattered the evidence carelessly"
requiresInferencetrue
difficulty"hard"
easyMatched0
easyTotal12
hardMatched0
hardTotal14
inferenceMatched0
inferenceTotal14
91.53% Structural similarity to original
Words: 75%, Paragraphs: 100%, Sentences: 100%
wordCountScore0.745874587458746
paragraphCountScore1
sentenceCountScore1
originalWords606
outputWords454
originalParagraphs15
outputParagraphs15
originalSentences58
outputSentences44
21.8443%