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Run: 2026-10-06-01M48VRZ801WCXSQ9C9FKDQY0W
Run Details
Model:
Mistral Large 4.0
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
9.8s
Cost:
$0.000548
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
33.21%
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 antique clock in the hallway struck thirteen times as Detective Mara Voss stepped through the front door that evening. She noticed immediately that the dining room chandelier had been shattered across the Persian rug below it. Three guests sat frozen at the dinner table, their faces pale with shock and something else entirely. The victim, renowned art dealer Julian Blackwood, lay sprawled beside his untouched plate of coq au vin. His silver pocket watch had stopped at exactly nine seventeen, though no one could remember hearing any gunshot. Mara photographed the scene carefully before anyone could disturb the fragile evidence scattered across the room. A single white rose lay on Blackwood's chest, its stem snapped cleanly and dripping crimson onto his silk shirt. The butler, Henderson, stood by the kitchen door with trembling hands and a story he clearly wanted desperately to tell. Outside, rain began falling against the tall windows, washing away footprints that might have led toward the garden gate. Mara asked each guest to remain exactly where they were until she finished her preliminary examination of everything. The murder weapon, she suspected, was still hidden somewhere within these walls, waiting to be discovered by her.
created_at
"2026-10-06T15:02:07.881Z"
10/6/2026, 3:02:07 PM
model
"mistralai/mistral-large-4-0-20261006"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
791
moderation_latency
(null)
generation_time
9782
tokens_prompt
46
tokens_completion
313
native_tokens_prompt
50
native_tokens_completion
246
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
0.00054814
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791298927-EzOnIZCqmEtufdkBmRo8"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791298927-vviMd8Ccm1H9L5IhKhB7"
upstream_id
"dc8b8c7eb8c140289a71930bdcf07e46"
provider_responses
0
endpoint_id
"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id
"dc8b8c7eb8c140289a71930bdcf07e46"
is_byok
false
latency
777
model_permaslug
"mistralai/mistral-large-4-0-20261006"
provider_name
"Mistral"
status
200
total_cost
0.00054814
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
33.21%
Matches word count
n/a
neededClean
false
sentences
11
wordCounts
0
20
1
17
2
17
3
17
4
18
5
16
6
19
7
20
8
19
9
18
10
18