Run: 2026-02-22-01KJ3A5PK7448VCE36FY31D37R

Run Details

Duration:
6.9s
Cost:
$0.005110
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 before. It should not have felt 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 should hurry, she is not in a good mood." Mara could not decipher if this was meant as a caution or merely casual conversation. It did not matter, really. She had made her choice, and there was no use in doubting it now. The hallway remained unchanged. The grey carpet, the harsh lighting, and the faint odour of coffee that had been sitting too long—it was all still there. Mara would not have been shocked to see her old nameplate on the door, yet it was not. Someone else's name now took its place. "I did not expect you to show up," remarked Priya, rising from her chair as Mara entered. No smile greeted her. "We have a problem, and you are the only one who can assist." "I am uncertain if that is the case," Mara replied. "I have not been a part of the project for years, and I would not know where to start." "You might be shocked," Priya countered. "It is the same code base. The core modules have not been altered. You would recognise it immediately." Mara took a moment to respond. She had already resolved not to get drawn in again, yet seeing Priya in person was unexpected. It was more difficult to refuse her face to face—that was not fair at all. "I will consider it," she replied eventually, neither a confirmation nor a refusal.
created_at"2026-02-22T18:35:45.643Z" 2/22/2026, 6:35:45 PM
model"cohere/command-r-plus-08-2024"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency160
moderation_latency171
generation_time6676
tokens_prompt539
tokens_completion422
native_tokens_prompt508
native_tokens_completion384
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"
usage0.00511
router(null)
provider_responses
0
endpoint_id"cd63714a-d459-4806-bdf2-0dfea4f6614c"
id"16b409ec-24b2-4c5a-a708-d56edf0a412a"
is_byokfalse
latency160
model_permaslug"cohere/command-r-plus-08-2024"
provider_name"Cohere"
status200
api_type"completions"
id"gen-1771785345-6opAjnIY75sIEVx6FEFG"
upstream_id"16b409ec-24b2-4c5a-a708-d56edf0a412a"
total_cost0.00511
cache_discount(null)
upstream_inference_cost0
provider_name"Cohere"

Evaluation details

Result Evaluator Details Meta Data
20.00% Non-contraction text preserved
1/5 anchor points preserved
matched1
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
preservedfalse
16.28% Contraction expansion accuracy
7/43 contractions correctly expanded
neededCleanfalse
matched7
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
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
correctfalse
originalPresentfalse
expected
0"You will"
11
id"c12"
paragraphFoundtrue
correctfalse
originalPresentfalse
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
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
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
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
hardScore0.5
50.00% Possessive traps preserved
1/2 possessive traps correctly preserved
matched1
total2
details
0
id"trap-1"
paragraphFoundtrue
preservedtrue
1
id"trap-2"
paragraphFoundtrue
preservedfalse
28.7597%