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Run: 2026-03-18-01KM0AHEC0QN0NFAGX0R213QA6
Run Details
Model:
Mistral Small 4
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.1s
Cost:
$0.000106
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
5.97%
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 against the windows as Eleanor Vexley adjusted the antique clockâs pendulum, its ticking growing erratic. The grand library smelled faintly of leather bindings and something metallic beneath the sweet scent of dying roses. A bloodstained letter lay open on the mahogany desk, its crimson ink smudged by trembling fingers. The fire in the hearth had burned low, casting long shadows that danced across the blood-smeared Persian rug. The guests had just arrived, their murmurs drifting up the staircase like a chorus of anxious ghosts. Just as Eleanor turned, the grandfather clock struck midnight, its chime lingering unnaturally long. Without warning, the chandelier above her flickered violently before plunging the room into sudden, suffocating darkness.
created_at
"2026-03-18T11:15:50.798Z"
3/18/2026, 11:15:50 AM
model
"mistralai/mistral-small-2603"
1/1/2603, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
381
moderation_latency
(null)
generation_time
1995
tokens_prompt
46
tokens_completion
195
native_tokens_prompt
51
native_tokens_completion
164
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
0.00010605
router
(null)
provider_responses
0
endpoint_id
"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id
"766d7c14de06483fbe79dcc67e9c7903"
is_byok
false
latency
377
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-1773832550-r9sW7hZabtxnAPN2CChg"
upstream_id
"766d7c14de06483fbe79dcc67e9c7903"
total_cost
0.00010605
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
5.97%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
18
1
18
2
16
3
18
4
17
5
14
6
16