Run: 2026-02-24-01KJ8VWRMKRKHB7XWE9KRDR4ED

Run Details

Duration:
10.7s
Cost:
$0.022557
Provider:
Anthropic

Evaluation summary

Model input

User/Human
In the following passage, rename these locations: - "the market square" → "the harbor plaza" - "the market" (when referring to the same place) → "the harbor" - "the outer ring" → "the lower ward" - "the bridge" → "the ferry crossing" - "the northern mines" → "the eastern quarries" Change every occurrence of these location names throughout the text, including inside dialogue. Adjust articles and capitalization as needed (e.g., "The bridge" at the start of a sentence becomes "The ferry crossing"). When "bridge" appears as part of a compound like "bridge fee", rename only the location word: "bridge fee" → "ferry crossing fee". Do not change anything else. Preserve all other text exactly as written — same words, same punctuation, same paragraph structure. Return only the rewritten passage, nothing else. <text> 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 harbor plaza 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 lower ward. "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 ferry crossing 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 eastern quarries. 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 ferry crossing 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 lower ward didn't offer many choices, and Gregor knew that as well as she did. Elena walked out of the harbor 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 ferry crossing before dark.
created_at"2026-02-24T22:21:39.355Z" 2/24/2026, 10:21:39 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency593
moderation_latency(null)
generation_time10639
tokens_prompt783
tokens_completion1275
native_tokens_prompt754
native_tokens_completion1353
native_tokens_completion_images(null)
native_tokens_reasoning713
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"
usage0.022557
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_01JAGeovDhJufoMsgD3q7i4g"
is_byokfalse
latency555
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771971699-XNiCyqfCwyggoYZEgDYX"
upstream_id"msg_01JAGeovDhJufoMsgD3q7i4g"
total_cost0.022557
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Non-location text preserved
14/14 anchor points preserved
matched14
total14
details
0
id"chr-1"
paragraphFoundtrue
preservedtrue
1
id"chr-2"
paragraphFoundtrue
preservedtrue
2
id"dlg-1"
paragraphFoundtrue
preservedtrue
3
id"dlg-2"
paragraphFoundtrue
preservedtrue
4
id"dlg-3"
paragraphFoundtrue
preservedtrue
5
id"dlg-4"
paragraphFoundtrue
preservedtrue
6
id"dlg-5"
paragraphFoundtrue
preservedtrue
7
id"dlg-6"
paragraphFoundtrue
preservedtrue
8
id"dlg-7"
paragraphFoundtrue
preservedtrue
9
id"dlg-8"
paragraphFoundtrue
preservedtrue
10
id"set-1"
paragraphFoundtrue
preservedtrue
11
id"set-2"
paragraphFoundtrue
preservedtrue
12
id"set-3"
paragraphFoundtrue
preservedtrue
13
id"set-4"
paragraphFoundtrue
preservedtrue
100.00% Location replacement accuracy
8/8 location occurrences correctly replaced
neededCleanfalse
matched8
total8
details
0
id"loc-01"
paragraphFoundtrue
correcttrue
matched"harbor plaza"
expected
0"harbor plaza"
1
id"loc-02"
paragraphFoundtrue
correcttrue
matched"lower ward"
expected
0"lower ward"
2
id"loc-03"
paragraphFoundtrue
correcttrue
matched"ferry crossing"
expected
0"ferry crossing"
3
id"loc-04"
paragraphFoundtrue
correcttrue
matched"eastern quarries"
expected
0"eastern quarries"
4
id"loc-05"
paragraphFoundtrue
correcttrue
matched"ferry crossing"
expected
0"ferry crossing"
5
id"loc-06"
paragraphFoundtrue
correcttrue
matched"lower ward"
expected
0"lower ward"
6
id"loc-07"
paragraphFoundtrue
correcttrue
matched"harbor"
expected
0"harbor"
7
id"loc-08"
paragraphFoundtrue
correcttrue
matched"ferry crossing"
expected
0"ferry crossing"
100.00% No remaining old location names
No old location names remaining
remaining(empty)
100.0000%