Run: 2026-03-06-01KK1H6QZDG3V7HA7TAC9CV432

Run Details

Duration:
1.4s
Cost:
$0.000775
Provider:
Inception

Evaluation summary

Score Evaluator
Details Link
100.00% 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
Rain hammered the cobblestones as Detective Marla entered the dimly lit manor, clutching a crumpled invitation that had been delivered. A cold wind whispered through cracked windows, scattering wilted roses across the marble hallway, where shadows lingered like ghosts watching. Inside, the grand ballroom lay deserted, its crystal chandelier dimmed, reflecting only the faint outline of a shattered mirror on. Marla's flashlight trembled, revealing a crimson stain spreading from the floorboards, forming an ominous, irregular pattern across the tiles now. A distant clock struck midnight, echoing through empty corridors, as a faint scream lingered, swallowed by the oppressive silence still.
created_at"2026-03-06T12:15:52.82Z" 3/6/2026, 12:15:52 PM
model"inception/mercury-2-20260304"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1323
moderation_latency(null)
generation_time1323
tokens_prompt46
tokens_completion605
native_tokens_prompt34
native_tokens_completion1023
native_tokens_completion_images(null)
native_tokens_reasoning893
native_tokens_cached5
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"
usage0.000774625
router(null)
provider_responses
0
endpoint_id"c2a24e34-c306-4b4d-9e2f-b162c2d8bf0e"
id"chatcmpl-581eba4b-a92e-40bc-bc9b-f5ca2ba89f89"
is_byokfalse
latency47
model_permaslug"inception/mercury-2-20260304"
provider_name"Inception"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1772799352-mFsGt2skCe74VXMBubWo"
upstream_id"chatcmpl-581eba4b-a92e-40bc-bc9b-f5ca2ba89f89"
total_cost0.000774625
cache_discount0.000001125
upstream_inference_cost0
provider_name"Inception"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420