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Run: 2026-10-07-01M4ASJP2S51FEEBJXQ38CV01D
Run Details
Model:
Mistral Medium 3.5
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1.7s
Cost:
$0.001194
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
24.73%
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 library fell silent as the clock struck midnight with an eerie, echoing chime through the dusty halls. Detective Marlowe adjusted his coat, eyes scanning the shadowed shelves where secrets lurked behind leather-bound spines. A single candle flickered on the mahogany desk, its light revealing a letter stained with crimson, possibly blood. The victim lay sprawled across the Persian rug, a silver dagger embedded deep in his motionless, pale chest. Footsteps creaked on the staircase, but no one appeared, leaving only the scent of lavender and fear hanging thick. Marlowe knelt, noticing a monogrammed handkerchief clutched in the dead man’s stiff, cold fingers.
created_at
"2026-10-07T09:02:13.603Z"
10/7/2026, 9:02:13 AM
model
"mistralai/mistral-medium-3.5-20260430"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
257
moderation_latency
(null)
generation_time
1689
tokens_prompt
46
tokens_completion
173
native_tokens_prompt
51
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
0.001194
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791363733-o6OM1vlnxlDjn5J5T7K1"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791363733-bEM4cZGgLPnZNq4fhFi1"
upstream_id
"492685ccbd7b4df28078eaeae6e64a14"
provider_responses
0
endpoint_id
"d21d316f-d540-4718-b36e-3beff85d0cf9"
id
"492685ccbd7b4df28078eaeae6e64a14"
is_byok
false
latency
257
model_permaslug
"mistralai/mistral-medium-3.5-20260430"
provider_name
"Mistral"
status
200
total_cost
0.001194
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
24.73%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
19
1
16
2
18
3
18
4
19
5
14