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Run: 2026-10-06-01M48VWKYKXFWAETW0STGGY692
Run Details
Model:
Mistral Large 4.0
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
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
Messages
Meta
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_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
762
moderation_latency
(null)
generation_time
7949
tokens_prompt
46
tokens_completion
348
native_tokens_prompt
50
native_tokens_completion
277
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
service_tier
"default"
usage
0.00061293
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)
preset_id
(null)
api_type
"completions"
id
"gen-1791299047-SqZg9HWevX35d0aUAub8"
upstream_id
"8351cf787ad44430a9a52d0c95fb4493"
provider_responses
0
endpoint_id
"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id
"8351cf787ad44430a9a52d0c95fb4493"
is_byok
false
latency
762
model_permaslug
"mistralai/mistral-large-4-0-20261006"
provider_name
"Mistral"
status
200
total_cost
0.00061293
cache_discount
(null)
upstream_inference_cost
0
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
neededClean
false
sentences
10
wordCounts
0
20
1
23
2
21
3
22
4
22
5
23
6
25
7
25
8
23
9
25