NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-18-01KM09GRHHBHPSRQ1M4NX5QA3W
Run Details
Model:
Mistral Small 4 (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
5.6s
Cost:
$0.000477
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
64.59%
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
Messages
Meta
AI
Thecandlelight flickered ominously as guests quietly arrived. Murmurs of excitement buzzed through the lavishly decorated room. The host, a wealthy industrialist, greeted each guest warmly. A sudden crash from the study shattered the evening’s tranquility. All heads turned toward the study as frightened whispers filled the air. The host’s valet stood frozen in the doorway, pale-faced and trembling. "Something terrible has happened in the study," he managed to stammer. Guests exchanged nervous glances, their cheerful demeanor suddenly vanished without trace. Within moments, the valet led the group toward the forbidden chamber.
created_at
"2026-03-18T10:57:59.87Z"
3/18/2026, 10:57:59 AM
model
"mistralai/mistral-small-2603"
1/1/2603, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
361
moderation_latency
(null)
generation_time
5134
tokens_prompt
46
tokens_completion
924
native_tokens_prompt
51
native_tokens_completion
782
native_tokens_completion_images
(null)
native_tokens_reasoning
758
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.00047685
router
(null)
provider_responses
0
endpoint_id
"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id
"7bd95e41561e413dacb73c1f91f95ba0"
is_byok
false
latency
358
model_permaslug
"mistralai/mistral-small-2603"
1/1/2603, 12:00:00 AM
provider_name
"Mistral"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1773831479-peFizT2c3Uf6PmHYEn0w"
upstream_id
"7bd95e41561e413dacb73c1f91f95ba0"
total_cost
0.00047685
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
64.59%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
7
1
9
2
9
3
10
4
12
5
11
6
11
7
11
8
11