Run: 2026-02-22-01KJ385Y8NNBRQ7D0AP5GYPDBJ

Run Details

Duration:
8.2s
Cost:
$0.005100
Provider:
Cohere

Model input

System
You are an expert prose editor. Whenever you're given text, rephrase it using the following instructions: <instructions>Expand all contractions to their full forms.</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="283"> Mara didn't want to be there. She'd promised herself she wouldn't go back, but here she was, standing in the lobby of the building she'd left three years ago. It wasn't supposed to feel this way. "You're late," said the receptionist, a young man who didn't look up from his screen. He'd been typing something, and he didn't stop. "She's waiting in the conference room. You'll want to hurry — she's not in a good mood." Mara couldn't tell if that was meant as a warning or just small talk. She wasn't sure it mattered. She'd made her decision, and there wasn't any point in second-guessing it now. The hallway hadn't changed. The same grey carpet, the same harsh lighting, the same faint smell of coffee that'd been sitting too long. Mara wouldn't have been surprised to find her old nameplate still on the door, but it wasn't there. Someone else's name had replaced hers. "I didn't think you'd actually come," said Priya, who'd risen from her chair the moment Mara entered. She wasn't smiling. "We've got a problem, and you're the only one who can help." "I'm not sure that's true," Mara said. "I haven't been involved in the project for years. I wouldn't know where to begin." "You'd be surprised," Priya said. "It's the same codebase. They haven't touched the core modules. You'd recognize it instantly." Mara didn't answer right away. She'd already told herself she wouldn't get pulled back in. But she hadn't expected Priya to ask in person. That wasn't fair — it's harder to say no to someone's face. "I'll think about it," she said. That wasn't a yes, and they both knew it wasn't a no either. </text>

Model response

AI
Mara did not want to be there. She had promised herself she would not go back, but there she was, standing in the lobby of the building she had left three years prior. It was not meant to evoke such emotion. "You are late," stated the receptionist, a young man who did not glance up from his screen. He was typing intently, and he did not pause. "She is waiting in the conference room. You will want to hurry — she is not in a good mood." Mara could not discern if this was a warning or mere idle chit-chat. It seemed irrelevant. She had made up her mind, and there was no use questioning it now. The hallway remained unchanged. The grey carpet, the harsh lighting, and the lingering scent of stale coffee were all still there. Mara would not have been shocked to see her old nameplate on the door, but it was not there any longer. Another name now occupied its place. "I never imagined you would really come," remarked Priya, who had stood up from her chair the moment Mara stepped in. Her expression was serious. "We are facing a problem, and you are the sole person who can assist." "I am not certain of that," Mara replied. "I have not been involved in the project for years. I would be at a loss to know where to start." "You might be amazed," Priya said, "The codebase is the same. They have not altered the core modules. You would recognise it immediately." Mara hesitated. She had already resolved not to be drawn back. However, she had not anticipated Priya's personal request, which made it more difficult to refuse. "I will consider it," she said. Her response was vague, and they both understood it was neither a yes nor a no.
created_at"2026-02-22T18:00:56.345Z" 2/22/2026, 6:00:56 PM
model"cohere/command-r-plus-08-2024"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency221
moderation_latency142
generation_time7866
tokens_prompt539
tokens_completion425
native_tokens_prompt508
native_tokens_completion383
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"
usage0.0051
router(null)
provider_responses
0
endpoint_id"cd63714a-d459-4806-bdf2-0dfea4f6614c"
id"7e56db67-bb32-45fa-ad7a-8923aa34848d"
is_byokfalse
latency221
model_permaslug"cohere/command-r-plus-08-2024"
provider_name"Cohere"
status200
api_type"completions"
id"gen-1771783256-2hq847Yd10UEG9X2rdG9"
upstream_id"7e56db67-bb32-45fa-ad7a-8923aa34848d"
total_cost0.0051
cache_discount(null)
upstream_inference_cost0
provider_name"Cohere"

Evaluation details

Result Evaluator Details Meta Data
40.00% Non-contraction text preserved
2/5 anchor points preserved
matched2
total5
details
0
id"set-1"
paragraphFoundtrue
preservedtrue
1
id"set-2"
paragraphFoundtrue
preservedfalse
2
id"set-3"
paragraphFoundtrue
preservedfalse
3
id"set-4"
paragraphFoundtrue
preservedfalse
4
id"set-5"
paragraphFoundtrue
preservedtrue
13.95% Contraction expansion accuracy
6/43 contractions correctly expanded
neededCleanfalse
matched6
total43
details
0
id"c01"
paragraphFoundtrue
correcttrue
matched"did not"
expected
0"did not"
1
id"c02"
paragraphFoundtrue
correcttrue
matched"She had"
expected
0"She had"
2
id"c03"
paragraphFoundtrue
correcttrue
matched"would not"
expected
0"would not"
3
id"c04"
paragraphFoundtrue
correcttrue
matched"she had"
expected
0"she had"
4
id"c05"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
5
id"c06"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"You are"
6
id"c07"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"did not"
7
id"c08"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"He had"
8
id"c09"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"did not"
9
id"c10"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"She is"
10
id"c11"
paragraphFoundtrue
correcttrue
matched"You will"
expected
0"You will"
11
id"c12"
paragraphFoundtrue
correcttrue
matched"she is"
expected
0"she is"
12
id"c13"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"could not"
13
id"c14"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
14
id"c15"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"She had"
15
id"c16"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
16
id"c17"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"had not"
17
id"c18"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"that had"
difficulty"hard"
18
id"c19"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"would not"
19
id"c20"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
20
id"c21"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"did not"
21
id"c22"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"you would"
22
id"c23"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"who had"
difficulty"hard"
23
id"c24"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
24
id"c25"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"We have"
25
id"c26"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"you are"
26
id"c27"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"I am"
27
id"c28"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"that is"
28
id"c29"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"have not"
29
id"c30"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"would not"
30
id"c31"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"You would"
31
id"c32"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"It is"
32
id"c33"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"have not"
33
id"c34"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"You would"
34
id"c35"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"did not"
35
id"c36"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"She had"
36
id"c37"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"would not"
37
id"c38"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"had not"
38
id"c39"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
39
id"c40"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"it is"
40
id"c41"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"I will"
41
id"c42"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
42
id"c43"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
easyScore0.14634146341463414
hardScore0
0.00% Possessive traps preserved
0/2 possessive traps correctly preserved
matched0
total2
details
0
id"trap-1"
paragraphFoundtrue
preservedfalse
1
id"trap-2"
paragraphFoundtrue
preservedfalse
17.9845%