Run: 2026-09-25-01M3CKF1PZZTRAPQCTT22YRW5K

Run Details

Duration:
1.9s
Cost:
$0.001141
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

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 suddenly cut short. Guests froze, their laughter dying in the flickering candlelight. The butler’s hands trembled as he clutched a silver tray. Blood seeped beneath the study door, dark and unnervingly still. Whispers spread like wildfire among the nervous, well-dressed crowd. Cole pushed through, his boots clicking on the marble floor. The body lay sprawled, a letter opener buried deep in chest. Someone here was a killer, and time was running out.
created_at"2026-09-25T15:38:10.027Z" 9/25/2026, 3:38:10 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency456
moderation_latency(null)
generation_time1816
tokens_prompt46
tokens_completion157
native_tokens_prompt51
native_tokens_completion142
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.0011415
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350690-Y4dGRg0GfvvLoGWlujFN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350690-iH3Q18IaVS4J3lo4bnfY"
upstream_id"0f2c6c97397947a69cdd162ea5d6fdfa"
provider_responses
0
endpoint_id"d21d316f-d540-4718-b36e-3beff85d0cf9"
id"0f2c6c97397947a69cdd162ea5d6fdfa"
is_byokfalse
latency456
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0011415
cache_discount(null)
upstream_inference_cost0
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
neededCleanfalse
sentences10
wordCounts
010
110
211
39
410
510
69
710
811
910