Run: 2026-05-01-01KQHT9E8CTKHTXNHESYK2KRAK

Run Details

Duration:
33.9s
Cost:
$0.006117
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 clouds gathered overhead ominously. Rain lashed window panes violently. Mansion loomed in distance threateningly. Servant discovered body early morning. Victim clutched note in hand. Detective arrived at scene promptly. He examined corpse very carefully. Clues suggested foul play involved. Family members seemed suspicious indeed.
created_at"2026-05-01T13:05:18.453Z" 5/1/2026, 1:05:18 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency31230
moderation_latency(null)
generation_time31729
tokens_prompt46
tokens_completion598
native_tokens_prompt159
native_tokens_completion2421
native_tokens_completion_images(null)
native_tokens_reasoning2362
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"
usage0.00611685
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"31ec777b-9be7-05db-efdb-6004bf4f1225"
is_byokfalse
latency154
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-1777640718-hYkzs3DXBRdeOPLbUV6D"
session_id(null)
api_type"completions"
id"gen-1777640718-wPGmle5NGimuUwBknFjn"
upstream_id"31ec777b-9be7-05db-efdb-6004bf4f1225"
total_cost0.00611685
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