Run: 2026-05-01-01KQHT8TH0EK3Q403QZBM7R57C

Run Details

Duration:
30.3s
Cost:
$0.007052
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Screams echoed through quiet night. Millionaire slumped over antique desk. Poison bottle sat close by. Maid called for help quickly. Police arrived within short time. Inspector scanned for hidden evidence. Servants avoided all eye contact.
created_at"2026-05-01T13:04:56.356Z" 5/1/2026, 1:04:56 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency29962
moderation_latency(null)
generation_time30281
tokens_prompt46
tokens_completion745
native_tokens_prompt159
native_tokens_completion2768
native_tokens_completion_images(null)
native_tokens_reasoning2722
native_tokens_cached64
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"
usage0.00705155
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"0b28633b-01cd-9b89-acc8-421466724869"
is_byokfalse
latency106
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-1777640696-n1lqllufjVS2OxLpsiXv"
session_id(null)
api_type"completions"
id"gen-1777640696-FhExlWb7sXa1huSnJZTb"
upstream_id"0b28633b-01cd-9b89-acc8-421466724869"
total_cost0.00705155
cache_discount0.0000672
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
sentences7
wordCounts
05
15
25
35
45
55
65