Run: 2026-02-24-01KJ8VY5N7ZX1WDD8V6NPTVHEV

Run Details

Duration:
24.7s
Cost:
$0.041118
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old manor stood silent beneath the pale winter moonlight. Detective Clara Walsh arrived just before the clock struck midnight. The iron gates groaned as she pushed them slowly open. Rain had soaked the gravel path leading to the door. A single light burned in the second floor window above. She knocked three times and heard nothing but silence return. The door swung open on its own with a creak. Clara stepped inside and felt the cold air hit her. A crystal chandelier flickered weakly above the marble entrance hall. Then she saw him lying at the foot of stairs. Lord Edmund Blackwell was dead, still dressed in his tuxedo. His eyes were open wide as if frozen in shock. A wine glass lay shattered on the floor beside him. Clara knelt down and studied the dark stain nearby carefully. Nobody else appeared to be present anywhere in the house. Yet someone had clearly been here not very long ago. She reached for her radio and called the station immediately. This was going to be a very long cold night.
created_at"2026-02-24T22:22:25.457Z" 2/24/2026, 10:22:25 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency735
moderation_latency(null)
generation_time24658
tokens_prompt46
tokens_completion760
native_tokens_prompt61
native_tokens_completion2729
native_tokens_completion_images(null)
native_tokens_reasoning507
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"
usage0.041118
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_01Ptsnto15GwvKoHDHidDazi"
is_byokfalse
latency725
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771971745-ibTXROH6fxDCOMvAjfwO"
upstream_id"msg_01Ptsnto15GwvKoHDHidDazi"
total_cost0.041118
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710