Run: 2026-02-20-01KHYAE7QM2D075WX59ECGE84A

Run Details

Duration:
1.1s
Cost:
$0.000026
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
87.04% 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 old manor loomed darkly under stormy midnight skies. Rain lashed against the cracked, peeling front door’s wooden frame. Footsteps echoed hollowly through the empty, drafty hallway’s length. A single candle flickered weakly on the table’s scarred surface. The air smelled of damp earth and something faintly metallic. Professor Alistair Graves adjusted his spectacles with trembling fingers. His assistant whispered urgently, voice barely above a breath. The library door creaked open, revealing a figure in shadow. A gunshot shattered the silence, sending books tumbling to the floor. The professor’s body slumped forward, blood pooling on the rug.
created_at"2026-02-20T20:04:13.182Z" 2/20/2026, 8:04:13 PM
model"mistralai/ministral-8b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency318
moderation_latency(null)
generation_time981
tokens_prompt46
tokens_completion173
native_tokens_prompt39
native_tokens_completion134
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00002595
router(null)
provider_responses
0
endpoint_id"c85d26e1-1e0c-449b-9775-2afce7ae510b"
id"bd92c1514abb4a2a90248cbb00e5e55c"
is_byokfalse
latency306
model_permaslug"mistralai/ministral-8b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771617853-MbbBPvPbLrPq00xdxXYc"
upstream_id"bd92c1514abb4a2a90248cbb00e5e55c"
total_cost0.00002595
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
87.04% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
09
110
29
310
410
59
69
710
811
910