Run: 2026-03-11-01KKFFEKNXDSDB7Q6BT6DQZPG3

Run Details

Duration:
8.5s
Cost:
$0.000000
Provider:
Stealth

Evaluation summary

Score Evaluator
Details Link
92.13% 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 storm howled around the ancient mansion, windows rattling in their frames, as Detective Miller pulled up the gravel drive. Inside, the grand hallway was silent except for the ticking clock, its echoes bouncing off paintings and dark wood paneling. The detective's eyes were drawn to the library door, slightly ajar, where a shaft of light sliced through the darkness. Pushing it open, he froze; on the Persian rug, a body lay prone, a silver letter opener protruding from its back. The victim's face was frozen in a final, silent scream, eyes wide, staring up at the ceiling's swirling plaster cherubs.
created_at"2026-03-11T22:14:35.465Z" 3/11/2026, 10:14:35 PM
model"openrouter/healer-alpha"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency623
moderation_latency(null)
generation_time8273
tokens_prompt46
tokens_completion1009
native_tokens_prompt2119
native_tokens_completion1269
native_tokens_completion_images(null)
native_tokens_reasoning852
native_tokens_cached2117
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
router(null)
provider_responses(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773267275-eqWUFRwFxFdjo3H1uZLp"
upstream_id"gen-1773267275-eqWUFRwFxFdjo3H1uZLp"
total_cost0
cache_discount(null)
upstream_inference_cost0
provider_name"Stealth"

Evaluation details

Result Evaluator Details Meta Data
92.13% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
321
420