Run: 2026-05-01-01KQHS1N2S35Z6161WT73PAJ32

Run Details

Duration:
23.2s
Cost:
$0.006927
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
In the dimly lit mansion guests enjoyed an evening gala. Suddenly the host fell dead onto the polished floor dramatically. Panic spread quickly among all the frightened party attendees present. Detectives were called immediately to solve this mysterious deadly crime.
created_at"2026-05-01T12:43:32.829Z" 5/1/2026, 12:43:32 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency22995
moderation_latency(null)
generation_time23183
tokens_prompt46
tokens_completion639
native_tokens_prompt159
native_tokens_completion2745
native_tokens_completion_images(null)
native_tokens_reasoning2700
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"
usage0.00692685
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"f4da3ae6-4ef5-f643-c4e9-71e04cdff30a"
is_byokfalse
latency75
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-1777639412-RKjzaWYXHRDRydxoxIRp"
session_id(null)
api_type"completions"
id"gen-1777639412-9XL3Ta3QQhlGiVSdXOf3"
upstream_id"f4da3ae6-4ef5-f643-c4e9-71e04cdff30a"
total_cost0.00692685
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
sentences4
wordCounts
010
110
210
310