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Run: 2026-02-20-01KHXPPWT5KV3MPGZC44KPJP1K
Run Details
Model:
Mistral Medium 3.1
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
6.3s
Cost:
$0.000536
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
66.97%
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 grand estate loomed under storm clouds, its windows flickering with candlelight as guests arrived for dinner that evening. Detective Harlow adjusted his cufflinks, watching the butler’s stiff posture betray something far more sinister than polite service. Lady Whitmore’s emerald necklace glinted too brightly, her laughter sharp enough to slice through the thick tension in the air. A sudden clatter from the library sent the footman scrambling, his pale face suggesting he knew exactly what had happened. The scent of lavender and gunpowder clung to the hallway, mingling with the metallic tang of blood seeping beneath the study door. Whispers erupted as the lights flickered again, each shadow stretching like accusing fingers toward the trembling guests gathered nearby. Dr. Finch’s medical bag lay open on the table, its contents disturbingly rearranged as if someone had searched it in haste. A single glove, stained crimson at the fingertips, was tucked behind the grandfather clock where no one should have noticed. The victim’s pocket watch had stopped at nine seventeen, the exact moment the first scream tore through the otherwise suffocating silence. Harlow’s gaze locked onto the shattered brandy glass, its fragments arranged in a pattern that felt deliberate rather than accidental.
created_at
"2026-02-20T14:19:25.393Z"
2/20/2026, 2:19:25 PM
model
"mistralai/mistral-medium-3.1"
3/1/2001, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
406
moderation_latency
(null)
generation_time
6212
tokens_prompt
46
tokens_completion
345
native_tokens_prompt
39
native_tokens_completion
260
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
0.0005356
router
(null)
provider_responses
0
endpoint_id
"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id
"2173cf115f9649c9893579b4df1e798e"
is_byok
false
latency
406
model_permaslug
"mistralai/mistral-medium-3.1"
3/1/2001, 12:00:00 AM
provider_name
"Mistral"
status
200
api_type
"completions"
id
"gen-1771597165-AHbgd1p2AeHDnSpdjCZp"
upstream_id
"2173cf115f9649c9893579b4df1e798e"
total_cost
0.0005356
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
66.97%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
19
1
18
2
20
3
20
4
22
5
19
6
21
7
20
8
21
9
20