NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-18-01KM09WTM4V8R8KS9PZWXWMQP9
Run Details
Model:
Mistral Small 4
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1.6s
Cost:
$0.000089
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
8.67%
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 rain hammered down as thunder split the silence outside the looming estate where the murder would soon unfold. Detective Marlowe adjusted his coat, his sharp eyes scanning the dimly lit hallway before him. A flickering lantern cast long shadows across the bloodstained Persian rug in the grand foyer. The butler stood rigid, his face pale as marble, gripping a silver tray with trembling fingers. A shattered vase lay nearby, its fragments glinting under the chandelier’s dying light. Then came the scream, high and raw, echoing from the east wing’s forbidden corridor. Marlowe’s pulse quickened as he stepped over the threshold into the unknown.
created_at
"2026-03-18T11:04:35.217Z"
3/18/2026, 11:04:35 AM
model
"mistralai/mistral-small-2603"
1/1/2603, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
366
moderation_latency
(null)
generation_time
1497
tokens_prompt
46
tokens_completion
165
native_tokens_prompt
51
native_tokens_completion
136
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)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.00008925
router
(null)
provider_responses
0
endpoint_id
"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id
"eb2be3c7e102473f925b56d9443ce4d5"
is_byok
false
latency
366
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-1773831875-Of2ll9QwSLbjldW17iVU"
upstream_id
"eb2be3c7e102473f925b56d9443ce4d5"
total_cost
0.00008925
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
8.67%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
19
1
15
2
15
3
16
4
13
5
14
6
12