Run: 2026-03-12-01KKHYZ4HW56ER14XX18JVK51B

Run Details

Duration:
813ms
Cost:
$0.000654
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
93.52% 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 mansion at midnight precisely. A single gunshot echoed through the silent hallways loudly. Blood pooled slowly around the victim on the antique rug. Everyone present stared in shock at the gruesome scene unfolding. The butler whispered softly about hearing strange noises earlier tonight. Suspicion immediately fell upon all the family members gathered there. Hidden motives and old secrets began surfacing rapidly now. The storm outside raged fiercely matching the tension building inside.
created_at"2026-03-12T21:24:14.53Z" 3/12/2026, 9:24:14 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency312
moderation_latency(null)
generation_time743
tokens_prompt46
tokens_completion139
native_tokens_prompt157
native_tokens_completion95
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"
usage0.0006536
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"1ebcd351-c348-9300-4076-7b796de8e3bf"
is_byokfalse
latency264
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-1773350654-B00DdZDAfomPQyxpF944"
upstream_id"1ebcd351-c348-9300-4076-7b796de8e3bf"
total_cost0.0006536
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
93.52% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
19
210
310
410
510
69
710