Run: 2026-09-25-01M3CKFHHCXC31RKG3SEJP41HV

Run Details

Duration:
2.2s
Cost:
$0.001119
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
77.46% 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 body lay sprawled across the library’s Persian rug. Blood pooled darkly beneath the victim’s motionless, outstretched hand. A shattered glass lay nearby, its contents spilled like a crimson stain. The butler’s face paled as he discovered the grim scene first. Whispers spread like wildfire among the gathered, nervous partygoers. Someone here tonight had a secret worth killing to keep.
created_at"2026-09-25T15:38:26.228Z" 9/25/2026, 3:38:26 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency739
moderation_latency(null)
generation_time2171
tokens_prompt46
tokens_completion165
native_tokens_prompt51
native_tokens_completion139
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"
usage0.001119
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350706-uGBx7cesw1ZVqGvDl5KY"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350706-6P33ku3EfRRQDtHcfxEn"
upstream_id"18c8b7f0a0e1408d823f4acd315b16e8"
provider_responses
0
endpoint_id"38ef23a9-5cb3-46fa-85ec-7aed174f04eb"
id"18c8b7f0a0e1408d823f4acd315b16e8"
is_byokfalse
latency739
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.001119
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
77.46% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
211
39
49
59
612
711
89
910