Run: 2026-05-01-01KQHS0X2CS587HW98BJS0AMBQ

Run Details

Duration:
35.0s
Cost:
$0.008014
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
Rain fell heavily upon the sprawling country estate that evening. Inside the parlor guests chatted by the warm fireplace happily. A dreadful cry suddenly echoed from the upstairs bedroom loudly. The host lay murdered in a pool of crimson blood.
created_at"2026-05-01T12:43:08.241Z" 5/1/2026, 12:43:08 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency34535
moderation_latency(null)
generation_time34990
tokens_prompt46
tokens_completion754
native_tokens_prompt159
native_tokens_completion3153
native_tokens_completion_images(null)
native_tokens_reasoning3109
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"
usage0.00801405
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"9b1ffe06-0de1-4df1-e3c8-c67a4caf59ef"
is_byokfalse
latency62
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-1777639388-bvoGjk39I0BQgR97Om5x"
session_id(null)
api_type"completions"
id"gen-1777639388-Xa1ozE42XcLTfRGI7nfH"
upstream_id"9b1ffe06-0de1-4df1-e3c8-c67a4caf59ef"
total_cost0.00801405
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
010
110
210
310