Run: 2026-02-24-01KJ8X65JHHGSFQDT3V1WCQJ8P

Run Details

Duration:
5.3s
Cost:
$0.011070
Provider:
Anthropic

Evaluation summary

Model input

System
You are an expert prose editor. Whenever you're given text, rephrase it using the following instructions: <instructions>Rewrite from past tense to present tense.</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="381"> The market square buzzed with the sound of a hundred voices. Elena pushed through the crowd, her satchel clutched against her chest. She knew the merchant would not wait — he never waited for anyone, least of all a girl from the outer ring. "You're late," Gregor said, without looking up from his ledger. He ran a thick finger down a column of numbers and frowned. Elena set the package on the counter. "The bridge was out. I had to take the long way around." "Not my problem." He unwrapped the cloth and held the crystal up to the light. It caught the sun and threw tiny rainbows across the stall's canvas roof. Gregor's frown deepened. "This isn't what I ordered." She had expected this. The old man always found something to complain about, whether the goods were perfect or not. Elena crossed her arms and stood her ground. "It's exactly what you ordered," she said. "Blue quartz, uncut, from the northern mines. I watched them pull it from the rock myself." Gregor turned the crystal slowly, examining every facet. He brought it close to his eye, then held it at arm's length. Elena thought he looked like a jeweler appraising a diamond, though Gregor dealt in stranger things than jewelry. He set the crystal down and sighed. "Fine. But next time, wrap it properly. The edges are exposed." He reached beneath the counter and produced a small leather pouch. The coins inside clinked as he slid it toward her. Elena scooped up the pouch and weighed it in her palm. It felt light. She loosened the drawstring and counted: eight silver crowns. They had agreed on ten. "We agreed on ten," she said flatly. "That was before the bridge fee went up." Gregor smiled — a thin, practiced smile that never reached his eyes. "Take it or leave it." She took it. She always took it. The outer ring didn't offer many choices, and Gregor knew that as well as she did. Elena walked out of the market and into the narrow lanes beyond. The sun hung low over the rooftops, and the shadows stretched long across the cobblestones. She slipped the pouch into her satchel and quickened her pace. If she hurried, she would reach the bridge before dark. </text>

Model response

AI
The market square buzzes with the sound of a hundred voices. Elena pushes through the crowd, her satchel clutched against her chest. She knows the merchant will not wait — he never waits for anyone, least of all a girl from the outer ring. "You're late," Gregor says, without looking up from his ledger. He runs a thick finger down a column of numbers and frowns. Elena sets the package on the counter. "The bridge was out. I had to take the long way around." "Not my problem." He unwraps the cloth and holds the crystal up to the light. It catches the sun and throws tiny rainbows across the stall's canvas roof. Gregor's frown deepens. "This isn't what I ordered." She has expected this. The old man always finds something to complain about, whether the goods are perfect or not. Elena crosses her arms and stands her ground. "It's exactly what you ordered," she says. "Blue quartz, uncut, from the northern mines. I watched them pull it from the rock myself." Gregor turns the crystal slowly, examining every facet. He brings it close to his eye, then holds it at arm's length. Elena thinks he looks like a jeweler appraising a diamond, though Gregor deals in stranger things than jewellery. He sets the crystal down and sighs. "Fine. But next time, wrap it properly. The edges are exposed." He reaches beneath the counter and produces a small leather pouch. The coins inside clink as he slides it toward her. Elena scoops up the pouch and weighs it in her palm. It feels light. She loosens the drawstring and counts: eight silver crowns. They have agreed on ten. "We agreed on ten," she says flatly. "That was before the bridge fee went up." Gregor smiles — a thin, practised smile that never reaches his eyes. "Take it or leave it." She takes it. She always takes it. The outer ring doesn't offer many choices, and Gregor knows that as well as she does. Elena walks out of the market and into the narrow lanes beyond. The sun hangs low over the rooftops, and the shadows stretch long across the cobblestones. She slips the pouch into her satchel and quickens her pace. If she hurries, she will reach the bridge before dark.
created_at"2026-02-24T22:44:16.089Z" 2/24/2026, 10:44:16 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency563
moderation_latency(null)
generation_time5297
tokens_prompt679
tokens_completion616
native_tokens_prompt660
native_tokens_completion606
native_tokens_completion_images(null)
native_tokens_reasoning61
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"
usage0.01107
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_01Wc1rYjHbApow8j2LfqBRFh"
is_byokfalse
latency500
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771973056-TWnUUPRl9cW3p5q51Dbp"
upstream_id"msg_01Wc1rYjHbApow8j2LfqBRFh"
total_cost0.01107
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Setting descriptions preserved
5/5 setting anchors preserved
matched5
total5
details
0
id"set-1"
paragraphFoundtrue
preservedtrue
1
id"set-2"
paragraphFoundtrue
preservedtrue
2
id"set-3"
paragraphFoundtrue
preservedtrue
3
id"set-4"
paragraphFoundtrue
preservedtrue
4
id"set-5"
paragraphFoundtrue
preservedtrue
100.00% Tense transformation accuracy
53/53 verb tenses correctly transformed
neededCleanfalse
matched53
total53
details
0
id"t01"
paragraphFoundtrue
correcttrue
matched"buzzes"
expected
0"buzzes"
1
id"t02"
paragraphFoundtrue
correcttrue
matched"pushes"
expected
0"pushes"
2
id"t03"
paragraphFoundtrue
correcttrue
matched"knows"
expected
0"knows"
3
id"t04"
paragraphFoundtrue
correcttrue
matched"will not wait"
expected
0"will not wait"
4
id"t05"
paragraphFoundtrue
correcttrue
matched"waits"
expected
0"waits"
5
id"t06"
paragraphFoundtrue
correcttrue
matched"says"
expected
0"says"
6
id"t07"
paragraphFoundtrue
correcttrue
matched"runs"
expected
0"runs"
difficulty"hard"
7
id"t08"
paragraphFoundtrue
correcttrue
matched"frowns"
expected
0"frowns"
8
id"t09"
paragraphFoundtrue
correcttrue
matched"sets"
expected
0"sets"
difficulty"hard"
9
id"t10"
paragraphFoundtrue
correcttrue
matched"unwraps"
expected
0"unwraps"
10
id"t11"
paragraphFoundtrue
correcttrue
matched"holds"
expected
0"holds"
difficulty"hard"
11
id"t12"
paragraphFoundtrue
correcttrue
matched"catches"
expected
0"catches"
difficulty"hard"
12
id"t13"
paragraphFoundtrue
correcttrue
matched"throws"
expected
0"throws"
difficulty"hard"
13
id"t14"
paragraphFoundtrue
correcttrue
matched"deepens"
expected
0"deepens"
14
id"t15"
paragraphFoundtrue
correcttrue
matched"has expected"
expected
0"has expected"
1"expects"
15
id"t16"
paragraphFoundtrue
correcttrue
matched"finds"
expected
0"finds"
difficulty"hard"
16
id"t17"
paragraphFoundtrue
correcttrue
matched"are"
expected
0"are"
17
id"t18"
paragraphFoundtrue
correcttrue
matched"crosses"
expected
0"crosses"
18
id"t19"
paragraphFoundtrue
correcttrue
matched"stands"
expected
0"stands"
difficulty"hard"
19
id"t20"
paragraphFoundtrue
correcttrue
matched"says"
expected
0"says"
20
id"t21"
paragraphFoundtrue
correcttrue
matched"turns"
expected
0"turns"
21
id"t22"
paragraphFoundtrue
correcttrue
matched"brings"
expected
0"brings"
difficulty"hard"
22
id"t23"
paragraphFoundtrue
correcttrue
matched"holds"
expected
0"holds"
difficulty"hard"
23
id"t24"
paragraphFoundtrue
correcttrue
matched"thinks"
expected
0"thinks"
difficulty"hard"
24
id"t25"
paragraphFoundtrue
correcttrue
matched"looks"
expected
0"looks"
25
id"t26"
paragraphFoundtrue
correcttrue
matched"deals"
expected
0"deals"
difficulty"hard"
26
id"t27"
paragraphFoundtrue
correcttrue
matched"sets"
expected
0"sets"
difficulty"hard"
27
id"t28"
paragraphFoundtrue
correcttrue
matched"sighs"
expected
0"sighs"
28
id"t29"
paragraphFoundtrue
correcttrue
matched"reaches"
expected
0"reaches"
29
id"t30"
paragraphFoundtrue
correcttrue
matched"produces"
expected
0"produces"
30
id"t31"
paragraphFoundtrue
correcttrue
matched"clink"
expected
0"clink"
31
id"t32"
paragraphFoundtrue
correcttrue
matched"slides"
expected
0"slides"
difficulty"hard"
32
id"t33"
paragraphFoundtrue
correcttrue
matched"scoops"
expected
0"scoops"
33
id"t34"
paragraphFoundtrue
correcttrue
matched"weighs"
expected
0"weighs"
34
id"t35"
paragraphFoundtrue
correcttrue
matched"feels"
expected
0"feels"
difficulty"hard"
35
id"t36"
paragraphFoundtrue
correcttrue
matched"loosens"
expected
0"loosens"
36
id"t37"
paragraphFoundtrue
correcttrue
matched"counts"
expected
0"counts"
37
id"t38"
paragraphFoundtrue
correcttrue
matched"have agreed"
expected
0"have agreed"
38
id"t39"
paragraphFoundtrue
correcttrue
matched"says"
expected
0"says"
39
id"t40"
paragraphFoundtrue
correcttrue
matched"smiles"
expected
0"smiles"
40
id"t41"
paragraphFoundtrue
correcttrue
matched"reaches"
expected
0"reaches"
41
id"t42"
paragraphFoundtrue
correcttrue
matched"takes"
expected
0"takes"
difficulty"hard"
42
id"t43"
paragraphFoundtrue
correcttrue
matched"takes"
expected
0"takes"
difficulty"hard"
43
id"t44"
paragraphFoundtrue
correcttrue
matched"doesn't offer"
expected
0"doesn't offer"
44
id"t45"
paragraphFoundtrue
correcttrue
matched"knows"
expected
0"knows"
45
id"t46"
paragraphFoundtrue
correcttrue
matched"does"
expected
0"does"
46
id"t47"
paragraphFoundtrue
correcttrue
matched"walks"
expected
0"walks"
47
id"t48"
paragraphFoundtrue
correcttrue
matched"hangs"
expected
0"hangs"
difficulty"hard"
48
id"t49"
paragraphFoundtrue
correcttrue
matched"stretch"
expected
0"stretch"
49
id"t50"
paragraphFoundtrue
correcttrue
matched"slips"
expected
0"slips"
50
id"t51"
paragraphFoundtrue
correcttrue
matched"quickens"
expected
0"quickens"
51
id"t52"
paragraphFoundtrue
correcttrue
matched"hurries"
expected
0"hurries"
52
id"t53"
paragraphFoundtrue
correcttrue
matched"will reach"
expected
0"will reach"
easyMatched36
easyTotal36
hardMatched17
hardTotal17
100.00% Dialogue content preserved
10/10 dialogue lines preserved unchanged
matched10
total10
details
0
id"dlg-1"
paragraphFoundtrue
preservedtrue
1
id"dlg-2"
paragraphFoundtrue
preservedtrue
2
id"dlg-3"
paragraphFoundtrue
preservedtrue
3
id"dlg-4"
paragraphFoundtrue
preservedtrue
4
id"dlg-5"
paragraphFoundtrue
preservedtrue
5
id"dlg-6"
paragraphFoundtrue
preservedtrue
6
id"dlg-7"
paragraphFoundtrue
preservedtrue
7
id"dlg-8"
paragraphFoundtrue
preservedtrue
8
id"dlg-9"
paragraphFoundtrue
preservedtrue
9
id"dlg-10"
paragraphFoundtrue
preservedtrue
100.0000%