Run: 2026-02-20-01KHY8DKV8T2YQEFNRRKCZ3QK2

Run Details

Duration:
1.9s
Cost:
$0.000053
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
43.82% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
**The rain hammered against the windowpanes as Inspector Harlow lit his pipe, its amber glow cutting through the dim lamplight.** **Outside, the cobblestones glistened like black glass under the flickering gas lamps, reflecting the shadow of a figure darting away.** **The letter on his desk bore no stamp, only a single word scrawled in jagged ink: *"Midnight at the Black Swan."* **Harlow’s fingers trembled slightly as he traced the edges of the envelope, wondering who had left it there before the body was found.** **Across the room, the telephone sat silent, its cord tangled like a noose around some forgotten crime’s last breath.** **A knock at the door made him start—too sharp, too deliberate, as if the killer had already chosen his next victim.** **The air smelled of damp wool and something metallic, the scent of blood lingering just beneath the surface of every ordinary thing.** **Harlow exhaled smoke toward the ceiling, where the ghost of a murdered man might still be watching, waiting for justice to catch up.**
created_at"2026-02-20T19:28:55.667Z" 2/20/2026, 7:28:55 PM
model"mistralai/ministral-14b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency203
moderation_latency(null)
generation_time1626
tokens_prompt46
tokens_completion273
native_tokens_prompt39
native_tokens_completion228
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"
usage0.0000534
router(null)
provider_responses
0
endpoint_id"0b53717b-9af5-4de3-80af-ebedd2adf981"
id"275c7319910845569b0a453191130363"
is_byokfalse
latency203
model_permaslug"mistralai/ministral-14b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771615735-Z69Deff3WOKYqB5ivrPp"
upstream_id"275c7319910845569b0a453191130363"
total_cost0.0000534
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
43.82% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
221
323
419
522
622
723