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Run: 2026-09-25-01M3CKGDWYBJ7EDY1PEJ3M1XG9
Run Details
Model:
Mistral Medium 3.5 (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
1.7s
Cost:
$0.001104
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
89.63%
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 terrifyingly brief. The guests froze, their laughter dying in an instant. Cole sprinted toward the sound, his pulse quickening with dread. A body lay sprawled across the library’s Persian rug. Blood pooled around the victim, dark and glistening in firelight. The butler stood pale, clutching a silver candlestick tightly. Whispers spread like wildfire among the shocked, well-dressed crowd. Someone here was a killer, and Cole would find them.
created_at
"2026-09-25T15:38:55.27Z"
9/25/2026, 3:38:55 PM
model
"mistralai/mistral-medium-3.5-20260430"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
357
moderation_latency
(null)
generation_time
1685
tokens_prompt
46
tokens_completion
155
native_tokens_prompt
51
native_tokens_completion
137
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
0.001104
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790350735-YhdQIUSvz3eANYcafcHY"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790350735-vw3l5myS41XOx1jMAIuI"
upstream_id
"5c668cd33ddc4dd19976345b00a4485e"
provider_responses
0
endpoint_id
"38ef23a9-5cb3-46fa-85ec-7aed174f04eb"
id
"5c668cd33ddc4dd19976345b00a4485e"
is_byok
false
latency
357
model_permaslug
"mistralai/mistral-medium-3.5-20260430"
provider_name
"Mistral"
status
200
total_cost
0.001104
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
89.63%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
9
4
10
5
9
6
10
7
9
8
9
9
10