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Run: 2026-10-06-01M48W2JHE9CXXY2D7WN0PNFRN
Run Details
Model:
Mistral Large 4.0
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
4.5s
Cost:
$0.000345
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
39.51%
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 antique clock in the hallway struck thirteen times, though no one had wound it in nearly twenty years. Detective Mara Voss stood frozen on the velvet staircase, her gloved hand gripping the banister with white-knuckled intensity. Below her, Lord Blackwood lay sprawled across the Persian rug, his crystal champagne flute shattered beside his outstretched hand. Three guests remained in the drawing room, each wearing expressions of practiced shock that failed to reach their cold eyes. The storm outside rattled the tall windows, as if nature itself conspired to keep secrets buried deep. Mara descended slowly, counting each step, knowing the killer watched from somewhere in the candlelit shadows above.
created_at
"2026-10-06T15:07:22.549Z"
10/6/2026, 3:07:22 PM
model
"mistralai/mistral-large-4-0-20261006"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
829
moderation_latency
(null)
generation_time
4503
tokens_prompt
46
tokens_completion
178
native_tokens_prompt
50
native_tokens_completion
149
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)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
service_tier
"default"
usage
0.00034541
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791299242-6xCbl9wAsClZVhXwyPCu"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791299242-LwKBoEprfzSqo8CKtE01"
upstream_id
"c1266c3ffd53436e8eeccf6f1ccf61fe"
provider_responses
0
endpoint_id
"540e63db-cc7c-4556-bb67-d449579bcf1a"
id
"c1266c3ffd53436e8eeccf6f1ccf61fe"
is_byok
false
latency
825
model_permaslug
"mistralai/mistral-large-4-0-20261006"
provider_name
"Mistral"
status
200
total_cost
0.00034541
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
39.51%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
19
1
18
2
19
3
20
4
17
5
17