Run: 2026-03-12-01KKHZEQFPMXJPZ261CN7KT6EB

Run Details

Duration:
856ms
Cost:
$0.000474
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
66.75% 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 detective entered the dimly lit room with caution. Blood stained the antique carpet in a gruesome pattern. He noticed the victim clutching a mysterious torn letter. Shadows danced eerily across the walls of the mansion. A single clock ticked loudly in the silent hallway. Everyone present seemed to hide some guilty secret.
created_at"2026-03-12T21:32:45.434Z" 3/12/2026, 9:32:45 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency393
moderation_latency(null)
generation_time785
tokens_prompt46
tokens_completion88
native_tokens_prompt157
native_tokens_completion65
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached128
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"completed"
usage0.0004736
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"85c92192-82c8-62ab-9838-afa5955cd742"
is_byokfalse
latency338
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351165-zr5qyzi7Grp3JLKrsvnk"
upstream_id"85c92192-82c8-62ab-9838-afa5955cd742"
total_cost0.0004736
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
66.75% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
09
19
29
39
49
58