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Run: 2026-09-25-01M3CKHYCJHB7JW6YMHMM882F0
Run Details
Model:
Mistral Medium 3.5 (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
1.6s
Cost:
$0.001134
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
84.45%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The grand mansion loomed under a stormy, moonless night sky. Detective Cole adjusted his coat as rain began to fall. A scream echoed through the halls, sharp and bloodcurdling. Guests froze, their laughter dying in an instant of dread. The lights flickered once, then plunged the room into darkness. A thud followed, heavy and final, from the study. Cole lit a match, its glow revealing a pale, trembling face. The butler stood stiff, clutching a silver tray with both hands. Blood dripped from the tray’s edge, dark and unmistakable. Somewhere in the house, a clock struck midnight with a chime.
created_at
"2026-09-25T15:39:44.928Z"
9/25/2026, 3:39:44 PM
model
"mistralai/mistral-medium-3.5-20260430"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
334
moderation_latency
(null)
generation_time
1522
tokens_prompt
46
tokens_completion
153
native_tokens_prompt
51
native_tokens_completion
141
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
0.001134
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790350784-yq0eEaxmYWKgDdeWfcFa"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790350784-ZN7Zezu80qx3Hy6Qe56o"
upstream_id
"8e1de3df1db34c50879d372ad2b49d20"
provider_responses
0
endpoint_id
"d21d316f-d540-4718-b36e-3beff85d0cf9"
id
"8e1de3df1db34c50879d372ad2b49d20"
is_byok
false
latency
334
model_permaslug
"mistralai/mistral-medium-3.5-20260430"
provider_name
"Mistral"
status
200
total_cost
0.001134
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
84.45%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
9
3
10
4
10
5
9
6
11
7
11
8
9
9
11