Run: 2026-03-12-01KKHYS3JR8FGX1YAPCA01AHVS

Run Details

Duration:
5.7s
Cost:
$0.009683
Provider:
xAI

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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Complete darkness enveloped the ancient mansion on that fateful night. Suddenly a piercing scream echoed through the empty halls loudly. The frightened maid discovered the body in the study room. The wealthy old host lay dead with knife in chest. Police arrived quickly to examine the mysterious crime scene carefully. The inspector questioned every shocked guest about their exact alibis.
created_at"2026-03-12T21:20:56.927Z" 3/12/2026, 9:20:56 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5397
moderation_latency(null)
generation_time5614
tokens_prompt46
tokens_completion99
native_tokens_prompt159
native_tokens_completion1580
native_tokens_completion_images0
native_tokens_reasoning1511
native_tokens_cached64
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"
usage0.0096828
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"2d3c2a93-a193-bff8-cf18-2abe86dfbbcb"
is_byokfalse
latency540
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-1773350456-JMk8jDZ6U0GTcA4nNPrT"
upstream_id"2d3c2a93-a193-bff8-cf18-2abe86dfbbcb"
total_cost0.0096828
cache_discount0.0001152
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
110
210
310
410
510