Run: 2026-05-01-01KQHRNCDCRQQAEQ1SK29FB94A

Run Details

Duration:
24.8s
Cost:
$0.006057
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 ancient clock struck midnight in the forgotten mansion quietly. Guests mingled happily unaware of the danger lurking nearby them. Suddenly the lights went out causing panic among all attendees. When the lights returned the host was found dead there.
created_at"2026-05-01T12:36:50.738Z" 5/1/2026, 12:36:50 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency24525
moderation_latency(null)
generation_time24783
tokens_prompt46
tokens_completion624
native_tokens_prompt159
native_tokens_completion2397
native_tokens_completion_images(null)
native_tokens_reasoning2353
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"
usage0.00605685
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"805ba7c8-4552-bbd7-6f88-5c880ca6e7d8"
is_byokfalse
latency91
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-1777639010-qTn79GK6RsqcaLvs06eG"
session_id(null)
api_type"completions"
id"gen-1777639010-trNA661rV18VNrP6VUgB"
upstream_id"805ba7c8-4552-bbd7-6f88-5c880ca6e7d8"
total_cost0.00605685
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
sentences4
wordCounts
010
110
210
310