Run: 2026-05-10-01KR902M16QAN0GHSE7DW4B8HA

Run Details

Model:
Grok 4.3
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
666ms
Cost:
$0.000177
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
1.11% 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 old mansion creaked under the weight of its long forgotten secrets during the heavy rain outside.
created_at"2026-05-10T13:08:56.494Z" 5/10/2026, 1:08:56 PM
model"x-ai/grok-4.3-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency401
moderation_latency(null)
generation_time606
tokens_prompt46
tokens_completion26
native_tokens_prompt157
native_tokens_completion19
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
service_tier"default"
usage0.00017655
router(null)
provider_responses
0
endpoint_id"45623cb8-18e5-4b32-8fc4-85d05439982d"
id"fae551e1-6608-99c4-aa33-dea02b0f9fee"
is_byokfalse
latency133
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-1778418536-tchgRu9uprRf9gynwPKT"
session_id(null)
api_type"completions"
id"gen-1778418536-7Lql455zlbDPO1z1YByj"
upstream_id"fae551e1-6608-99c4-aa33-dea02b0f9fee"
total_cost0.00017655
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
1.11% Matches word count n/a
neededCleanfalse
sentences1
wordCounts
017