Run: 2026-05-01-01KQHQV30071E05W1GEVVPA082

Run Details

Duration:
24.7s
Cost:
$0.005319
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
Dark storm clouds gathered overhead. Lightning revealed the old mansion. A gunshot shattered quiet night. Victim collapsed onto cold floor. Blood spread across wooden surface. Killer vanished without any trace.
created_at"2026-05-01T12:22:29.125Z" 5/1/2026, 12:22:29 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency24474
moderation_latency(null)
generation_time24685
tokens_prompt46
tokens_completion561
native_tokens_prompt159
native_tokens_completion2075
native_tokens_completion_images(null)
native_tokens_reasoning2039
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"
usage0.00531905
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"0ccdba60-63a3-9e72-8bb7-7dc667886f70"
is_byokfalse
latency73
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-1777638149-M72ep71V2tVppscBdqzW"
session_id(null)
api_type"completions"
id"gen-1777638149-d5Svy7jBdtTQtH07cMRv"
upstream_id"0ccdba60-63a3-9e72-8bb7-7dc667886f70"
total_cost0.00531905
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
sentences6
wordCounts
05
15
25
35
45
55