Run: 2026-10-06-01M48VNCSSWDGGZ6GQ1F01G27J

Run Details

Model:
Mistral Large 4.0
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
2.9s
Cost:
$0.000310
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
84.45% 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 lighthouse keeper found the body at dawn's first light. Inspector Mara Voss arrived quickly, her boots crunching on wet gravel. She noticed immediately that the victim's shoes were missing entirely. A single red rose lay carefully placed upon his cold chest. The medical examiner confirmed death occurred sometime before midnight struck. Three guests had been seen arguing with him at dinner. The storm had trapped everyone on this isolated rocky island. Mara studied each face, searching for guilt hidden behind polite smiles. The lighthouse beam swept across the room every twelve seconds precisely. She knew the killer was still here, watching her every move.
created_at"2026-10-06T15:00:10.691Z" 10/6/2026, 3:00:10 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency654
moderation_latency(null)
generation_time2864
tokens_prompt46
tokens_completion171
native_tokens_prompt50
native_tokens_completion132
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"
usage0.00030988
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791298810-0KrUPyfUNOPfdqAHzOVt"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791298810-01HYZM7FDtQDRJoXotzP"
upstream_id"11ae5fc6baa344c789234841f70a7a32"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"11ae5fc6baa344c789234841f70a7a32"
is_byokfalse
latency654
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00030988
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
84.45% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
111
210
311
410
510
610
711
811
911