Run: 2026-05-01-01KQHQMCE0B3A6RV1VEWX82PZQ

Run Details

Model:
Grok 4.3 (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 24s
Cost:
$0.008312
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The sophisticated guests gathered in the elegant dining room of the old mansion for a special evening celebration among friends. Suddenly a scream echoed through the halls indicating that something terrible had happened in the nearby kitchen area that night. The private detective arrived quickly to investigate the mysterious death of the wealthy host who lay murdered on the floor. Everyone in attendance seemed shocked and confused about who could commit such a horrible and mysterious crime during the party.
created_at"2026-05-01T12:18:49.413Z" 5/1/2026, 12:18:49 PM
model"x-ai/grok-4.3-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency83085
moderation_latency(null)
generation_time83770
tokens_prompt46
tokens_completion1000
native_tokens_prompt159
native_tokens_completion3272
native_tokens_completion_images(null)
native_tokens_reasoning3188
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"
usage0.00831155
router(null)
provider_responses
0
endpoint_id"45623cb8-18e5-4b32-8fc4-85d05439982d"
id"a5a7aec1-8e43-4332-ac99-01bc6265a843"
is_byokfalse
latency354
model_permaslug"x-ai/grok-4.3-20260430"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777637929-uNvfKXXrw1qOxV7NxpPu"
session_id(null)
api_type"completions"
id"gen-1777637929-nZBjim2ykkW05wqjDndM"
upstream_id"a5a7aec1-8e43-4332-ac99-01bc6265a843"
total_cost0.00831155
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
sentences4
wordCounts
020
120
220
320