Run: 2026-05-01-01KQHS7M6Y8E73C58D95XAZ996

Run Details

Duration:
24.0s
Cost:
$0.005794
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
The old foreboding mansion loomed large during the terrible storm. Several wealthy guests had arrived for the elegant dinner party. A terrifying loud scream suddenly echoed throughout the entire mansion. The loyal butler found his master dead on the floor. Fresh blood pooled around the body from a fatal wound. All the nervous suspects stared at each other with suspicion.
created_at"2026-05-01T12:46:48.549Z" 5/1/2026, 12:46:48 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency23390
moderation_latency(null)
generation_time23895
tokens_prompt46
tokens_completion600
native_tokens_prompt159
native_tokens_completion2292
native_tokens_completion_images(null)
native_tokens_reasoning2224
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00579435
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"762a2d6e-26a6-c85e-2c09-be663e6ac116"
is_byokfalse
latency65
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777639608-Ws2CL6oPdjgYripHw1X5"
session_id(null)
api_type"completions"
id"gen-1777639608-6CYuABXdpESlmF3kWEUk"
upstream_id"762a2d6e-26a6-c85e-2c09-be663e6ac116"
total_cost0.00579435
cache_discount0.0001344
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

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