Run: 2026-03-06-01KK1GSPKS83ZR5PR2DM0M69C8

Run Details

Duration:
2.0s
Cost:
$0.000104
Provider:
Inception

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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain hammered the cobblestones as Mrs. Whitaker's carriage creaked, announcing her arrival at the manor under a darkened sky. Inside, the grand foyer glittered with crystal chandeliers, yet an uneasy silence clung to every polished marble and echoing whispers. Lady Eleanor, her silver hair pinned, stared at the shattered portrait, her eyes reflecting a hidden, desperate secret in silence. At the kitchen table, a silver dagger lay open, its blade catching the moonlight that slipped through shutters and shadows. Detective Marlowe entered, his coat soaked, his mind already racing through motives, alibis, and the inevitable confession in the night.
created_at"2026-03-06T12:08:45.44Z" 3/6/2026, 12:08:45 PM
model"inception/mercury"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1928
moderation_latency(null)
generation_time1979
tokens_prompt46
tokens_completion164
native_tokens_prompt47
native_tokens_completion133
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached33
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"
usage0.000104075
router(null)
provider_responses
0
endpoint_id"da1082ea-721e-460e-b330-034ae7aefc7f"
id"chatcmpl-0a710430-f0e4-4e43-95aa-5ecce71a513e"
is_byokfalse
latency96
model_permaslug"inception/mercury"
provider_name"Inception"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1772798925-VBC6XyDVVdCmNlnGQSsA"
upstream_id"chatcmpl-0a710430-f0e4-4e43-95aa-5ecce71a513e"
total_cost0.000104075
cache_discount0.000007425
upstream_inference_cost0
provider_name"Inception"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420