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Run: 2026-03-18-01KM0964XCTC7FD7G16DGJ8W3V
Run Details
Model:
Mistral Small 4
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.8s
Cost:
$0.000173
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
49.21%
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 rain hammered against the windows as Eleanor Voss adjusted her gloves, her breath fogging the cold glass pane before her. Every evening, the old mansion’s bell tolled six times, yet no one dared answer its summons after dusk fell unnaturally silent. The butler’s key chain jingled as he unlocked the dining room, its oak doors groaning like a dying beast at the hour’s approach. A scent of burnt cinnamon lingered, though the kitchen fire had long since reduced to embers beneath the charred silver cauldron. Eleanor’s silk scarf slipped from her neck, pooling on the black-and-white tiles like a ghostly stain left by forgotten hands. The grandfather clock struck seven, its pendulum swinging too slowly, as if time itself had been drained of its usual rhythm. A muffled cry echoed from the west wing, sharp and sudden, cutting through the oppressive stillness like a blade through silk. The chandelier flickered, its crystals trembling as shadows stretched long and jagged across the bloodstained Turkish rug below. Eleanor’s gloved fingers tightened around the brass candlestick, its weight familiar yet strangely comforting against her trembling palm. The portrait above the fireplace watched, its painted eyes seeming to follow her as she took her first uneasy step forward.
created_at
"2026-03-18T10:52:12.088Z"
3/18/2026, 10:52:12 AM
model
"mistralai/mistral-small-2603"
1/1/2603, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
379
moderation_latency
(null)
generation_time
2680
tokens_prompt
46
tokens_completion
341
native_tokens_prompt
51
native_tokens_completion
275
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
0.00017265
router
(null)
provider_responses
0
endpoint_id
"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id
"84d799aaf072414799dceb42d0108a53"
is_byok
false
latency
379
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-1773831132-9bwWPDJ5AWhUtj3f23oI"
upstream_id
"84d799aaf072414799dceb42d0108a53"
total_cost
0.00017265
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
49.21%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
21
1
21
2
23
3
21
4
20
5
21
6
21
7
18
8
18
9
21