Run: 2026-05-20-01KS25SAT16K8AN5VC1TK6PBZ7

Run Details

Duration:
1.4s
Cost:
$0.000939
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
70.49% 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
Heavy rain lashed against the leaded windows of the ancient manor, drowning out the sudden, muffled scream from upstairs. Inside the smoke-filled library, a grandfather clock chimed midnight while the fire cast long, dancing shadows on the floor. Lord Harrington sat frozen in his leather armchair, a single drop of dark blood dripping slowly onto his collar. The velvet curtain rustled softly behind his corpse, but the clever killer had already vanished into the howling storm outside.
created_at"2026-05-20T07:49:44.39Z" 5/20/2026, 7:49:44 AM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency774
moderation_latency(null)
generation_time1299
tokens_prompt46
tokens_completion128
native_tokens_prompt38
native_tokens_completion98
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
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"STOP"
service_tier"standard"
usage0.000939
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"mGcNauDAINin1MkP3cazyAs"
is_byokfalse
latency774
model_permaslug"google/gemini-3.5-flash-20260519"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer(null)
request_id"req-1779263384-cf1PF7cMsaF8jcRqGIo9"
session_id(null)
api_type"completions"
id"gen-1779263384-w4cBGhHFORJerG3kpy6W"
upstream_id"mGcNauDAINin1MkP3cazyAs"
total_cost0.000939
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
70.49% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
019
119
219
320