Run: 2026-07-08-01KX1N1KJGVX8WBKHQ75415W47

Run Details

Duration:
1m 46s
Cost:
$0.017276
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
The grand clock struck midnight in the silent empty hall. Suddenly a piercing scream echoed through the dark mansion corridors. Guests rushed downstairs to find Lady Blackwood lying lifeless there. A large knife stuck deep into her elegant silk gown. Blood pooled slowly around her body on the marble floor. The butler gasped in horror at the shocking gruesome sight.
created_at"2026-07-08T19:59:57.019Z" 7/8/2026, 7:59:57 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency72740
moderation_latency(null)
generation_time96027
tokens_prompt46
tokens_completion704
native_tokens_prompt241
native_tokens_completion2831
native_tokens_completion_images(null)
native_tokens_reasoning2762
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"
service_tier"default"
usage0.017276
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
is_byokfalse
latency114
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status(null)
1
endpoint_id"78a73286-52c4-4d1d-9d13-c1870c25b143"
id"5524298f-2ea1-92f4-80a6-3269ae190bac"
is_byokfalse
latency105
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783540797-asCR0TEqgV0gleCOt6B7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783540797-wRKSL8jf3Tp5Q0DDAHrL"
upstream_id"5524298f-2ea1-92f4-80a6-3269ae190bac"
total_cost0.017276
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
110
210
310
410
510