Run: 2026-10-06-01M48VWKYKXFWAETW0STGGY692

Run Details

Duration:
8.0s
Cost:
$0.000613
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
19.11% 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 old lighthouse keeper found the body at dawn, sprawled across the rocks below with blood pooling in the tide. Inspector Mara Voss arrived quickly, her boots crunching on broken shells, and immediately noticed the single red glove near the corpse's outstretched hand. She photographed everything carefully before the fog rolled in, knowing that secrets often vanished with the morning mist and salt air. The victim was identified as Julian Crane, a reclusive historian who had rented the cottage just three days before his brutal death. Mara questioned the local fishermen first, learning that Julian had argued loudly with someone unknown at the village pub the previous evening. A torn photograph found in Julian's pocket showed him standing beside a woman whose face had been scratched out with violent, deliberate force. The lighthouse keeper admitted he had seen lights moving in the cottage at midnight, though he swore no one had left before the body appeared. Mara studied the rocks carefully, finding a distinctive boot print pressed into the wet sand near where the killer had stood to watch Julian fall. She wondered if the red glove was a clue or a taunt, left intentionally for her to discover in the gray morning light. The tide was rising fast now, threatening to wash away evidence, so Mara worked quickly to preserve everything before the sea claimed its secrets forever.
created_at"2026-10-06T15:04:07.389Z" 10/6/2026, 3:04:07 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency762
moderation_latency(null)
generation_time7949
tokens_prompt46
tokens_completion348
native_tokens_prompt50
native_tokens_completion277
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native_tokens_reasoning0
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num_media_completion0
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origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.00061293
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791299047-GQ59wZ0c8XiapQXlHZM8"
session_id(null)
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api_type"completions"
id"gen-1791299047-SqZg9HWevX35d0aUAub8"
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provider_responses
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endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
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is_byokfalse
latency762
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00061293
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
19.11% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
123
221
322
422
523
625
725
823
925