Run: 2026-02-22-01KJ3A4HT34XKWXKBTKWCQMYK3

Run Details

Duration:
8.4s
Cost:
$0.005250
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 ago. It was not supposed to feel like this. "You are late," stated the receptionist, a young man who did not look up from his screen. He was typing something and 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 decide if this was a warning or merely polite conversation. She was not convinced it mattered. She had made up her mind, and there was no use in doubting herself now. The hallway remained unchanged. The same grey carpet, the familiar harsh lighting, and the same faint odour of coffee that had been sitting for too long. Mara would not have been shocked to discover her old nameplate still on the door, but it was no longer there. Another person's name had taken its place. "I did not think you would actually come," Priya remarked, having stood up from her chair the moment Mara walked in. She was not smiling. "We have a problem, and you are the only one who can assist." "I am not certain that is true," Mara replied. "I have not been part of the project for years. I would not know where to start." "You would be surprised," Priya insisted. "It is the same codebase. They have not altered the core modules. You would recognise it right away." Mara did not respond immediately. She had already assured herself she would not be drawn back in. However, she had not anticipated Priya asking in person. That was not fair — it is more difficult to refuse when facing someone. "I will consider it," she said. That was not a confirmation, and they both knew it was not a refusal either.
created_at"2026-02-22T18:35:07.977Z" 2/22/2026, 6:35:07 PM
model"cohere/command-r-plus-08-2024"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency158
moderation_latency194
generation_time8055
tokens_prompt539
tokens_completion448
native_tokens_prompt508
native_tokens_completion398
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"
usage0.00525
router(null)
provider_responses
0
endpoint_id"cd63714a-d459-4806-bdf2-0dfea4f6614c"
id"76a1323d-e250-47d1-8e37-c9b5ff6d7faf"
is_byokfalse
latency158
model_permaslug"cohere/command-r-plus-08-2024"
provider_name"Cohere"
status200
api_type"completions"
id"gen-1771785307-XNh61K3VHaCzVxnzSIGd"
upstream_id"76a1323d-e250-47d1-8e37-c9b5ff6d7faf"
total_cost0.00525
cache_discount(null)
upstream_inference_cost0
provider_name"Cohere"

Evaluation details

Result Evaluator Details Meta Data
60.00% Non-contraction text preserved
3/5 anchor points preserved
matched3
total5
details
0
id"set-1"
paragraphFoundtrue
preservedtrue
1
id"set-2"
paragraphFoundtrue
preservedfalse
2
id"set-3"
paragraphFoundtrue
preservedtrue
3
id"set-4"
paragraphFoundtrue
preservedfalse
4
id"set-5"
paragraphFoundtrue
preservedtrue
37.21% Contraction expansion accuracy
16/43 contractions correctly expanded
neededCleanfalse
matched16
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
correcttrue
matched"was not"
expected
0"was not"
5
id"c06"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"You are"
6
id"c07"
paragraphFoundtrue
correcttrue
matched"did not"
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
correcttrue
matched"that had"
expected
0"that had"
difficulty"hard"
18
id"c19"
paragraphFoundtrue
correcttrue
matched"would not"
expected
0"would not"
19
id"c20"
paragraphFoundtrue
correctfalse
originalPresentfalse
expected
0"was not"
20
id"c21"
paragraphFoundtrue
correcttrue
matched"did not"
expected
0"did not"
21
id"c22"
paragraphFoundtrue
correcttrue
matched"you would"
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
correcttrue
matched"you are"
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
correcttrue
matched"would not"
expected
0"would not"
30
id"c31"
paragraphFoundtrue
correcttrue
matched"You would"
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
correcttrue
matched"was not"
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"
easyScore0.36585365853658536
hardScore0.5
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
32.4031%