Run: 2026-03-11-01KKFF5C9DQ71SQKRR2DQ19VM4

Run Details

Duration:
3.8s
Cost:
$0.000000
Provider:
Stealth

Evaluation summary

Score Evaluator
Details Link
37.09% 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 windows of the old mansion, echoing the tense silence within the dimly lit study. Inside, Detective Elara Vance examined the scene, her gaze sweeping over the overturned chair and shattered porcelain teacup. Lord Alistair Blackwood lay sprawled upon the Persian rug, his eyes frozen open, staring at the ornate ceiling above. A single, crimson rose was placed delicately upon his chest, its thorns glinting in the flickering fireplace light. The family gathered in the hall, their whispers cut short by the grandfather clock’s solemn, chiming stroke of midnight. Every locked door, every alibi, every tear felt like another thread in the web already binding them all.
created_at"2026-03-11T22:09:32.985Z" 3/11/2026, 10:09:32 PM
model"openrouter/healer-alpha"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency585
moderation_latency(null)
generation_time3559
tokens_prompt46
tokens_completion365
native_tokens_prompt2119
native_tokens_completion309
native_tokens_completion_images(null)
native_tokens_reasoning190
native_tokens_cached2093
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-1773266972-KfQ1RKnoIErbvMWuMUub"
upstream_id"gen-1773266972-KfQ1RKnoIErbvMWuMUub"
total_cost0
cache_discount(null)
upstream_inference_cost0
provider_name"Stealth"

Evaluation details

Result Evaluator Details Meta Data
37.09% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
118
219
318
419
518