Run: 2026-10-06-01M48VXC9GCERGZNSJM516CQ25

Run Details

Duration:
3.5s
Cost:
$0.000339
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
53.92% 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 by boat, her coat flapping wildly as she climbed the steep path toward the crime scene. She noticed immediately that the victim's shoes were missing, though his expensive watch still gleamed on his frozen wrist. Three witnesses claimed they heard nothing, yet the seagulls had been screaming all through the dark night. The lighthouse keeper insisted he had locked the gate, but the rusted latch hung open like a mocking smile. Mara photographed everything carefully, knowing that one small detail would eventually crack this tangled case wide open.
created_at"2026-10-06T15:04:32.309Z" 10/6/2026, 3:04:32 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency632
moderation_latency(null)
generation_time3429
tokens_prompt46
tokens_completion173
native_tokens_prompt50
native_tokens_completion146
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.00033914
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791299072-I419WjfUwdhpNq4flMed"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791299072-STi8jlarGngl1obrAUZl"
upstream_id"d4413b93325840e7ae87c6f26e9ba13b"
provider_responses
0
endpoint_id"540e63db-cc7c-4556-bb67-d449579bcf1a"
id"d4413b93325840e7ae87c6f26e9ba13b"
is_byokfalse
latency632
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00033914
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
53.92% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
219
317
419
517