Run: 2026-05-01-01KQHSXD38J58649T37C8PB47A

Run Details

Duration:
16.9s
Cost:
$0.003727
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
Rain poured down relentlessly tonight. The old mansion loomed large. Detective Jones approached front door. He knocked loudly twice more. Butler answered with pale face. Body lay in study room. Blood pooled around victim head. Detective scanned entire murder scene. Clues seemed hidden everywhere now.
created_at"2026-05-01T12:58:42.158Z" 5/1/2026, 12:58:42 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency16363
moderation_latency(null)
generation_time16780
tokens_prompt46
tokens_completion427
native_tokens_prompt159
native_tokens_completion1438
native_tokens_completion_images(null)
native_tokens_reasoning1382
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"
usage0.00372655
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"e56982c7-9a81-9c73-995c-5945b1aba142"
is_byokfalse
latency107
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-1777640322-cFgXttTSvnIFCAnqhM5g"
session_id(null)
api_type"completions"
id"gen-1777640322-o3Qp8Wc0VC2B8tILzLxd"
upstream_id"e56982c7-9a81-9c73-995c-5945b1aba142"
total_cost0.00372655
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
sentences9
wordCounts
05
15
25
35
45
55
65
75
85