Run: 2026-05-01-01KQHSDMNCAAEVHHHBC81DH05N

Run Details

Duration:
1.8s
Cost:
$0.000184
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
96.84% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Dark shadows engulfed the mansion. Silence wrapped every corner tightly. Footsteps echoed down hallway. A body lay motionless there. Blood pooled across wooden floor. Detective entered with cautious eyes. Questions filled the anxious air.
created_at"2026-05-01T12:50:05.618Z" 5/1/2026, 12:50:05 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency471
moderation_latency(null)
generation_time1737
tokens_prompt46
tokens_completion66
native_tokens_prompt157
native_tokens_completion49
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.00018435
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"8917e28c-4030-9934-89fa-638e8ccf476b"
is_byokfalse
latency135
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-1777639805-fDTCJjsFbBhkII4YGeou"
session_id(null)
api_type"completions"
id"gen-1777639805-eRcWmlP6qvhdj9YkaIev"
upstream_id"8917e28c-4030-9934-89fa-638e8ccf476b"
total_cost0.00018435
cache_discount0.0001344
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
96.84% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
05
15
24
35
45
55
65