Run: 2026-05-01-01KQHSGEPPH9ZD77RZ0RPV8CWQ

Run Details

Duration:
1.6s
Cost:
$0.000222
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
The mansion stood silent tonight. Guests arrived wearing fancy attire. Detective entered the grand hallway. A scream echoed through darkness. Body lay cold on floor. Blood pooled under dim lights. Everyone froze in sudden shock. Butler whispered with trembling voice. Murder had struck once again.
created_at"2026-05-01T12:51:37.818Z" 5/1/2026, 12:51:37 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency838
moderation_latency(null)
generation_time1568
tokens_prompt46
tokens_completion83
native_tokens_prompt157
native_tokens_completion64
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"
usage0.00022185
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"805993f9-2adc-9522-aec7-5473731d20d6"
is_byokfalse
latency63
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-1777639897-XXOgEfsKAJx3tiPX4g5W"
session_id(null)
api_type"completions"
id"gen-1777639897-0oqENqIt4ju3DrLMW1Kw"
upstream_id"805993f9-2adc-9522-aec7-5473731d20d6"
total_cost0.00022185
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
sentences9
wordCounts
05
15
25
35
45
55
65
75
85