Run: 2026-05-20-01KS25X5RE12RHNYDAWSC7CQVW

Run Details

Duration:
1.4s
Cost:
$0.001038
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
93.52% 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
Thick gray fog swallowed the gaslight along the cobblestone street. Cold rain fell steadily upon the grim Victorian brick townhouse. Sir Reginald sat frozen within his high-backed velvet armchair. A crimson pool dripped slowly onto the expensive Persian rug. His glassy eyes stared blankly at the roaring fireplace hearth. A silver letter opener remained buried deeply in his chest. The heavy grandfather clock ticked loudly in the silent room. Then, a soft footstep echoed from the dark hallway.
created_at"2026-05-20T07:51:50.291Z" 5/20/2026, 7:51:50 AM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency771
moderation_latency(null)
generation_time1320
tokens_prompt46
tokens_completion131
native_tokens_prompt38
native_tokens_completion109
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"
usage0.001038
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"FmgNatzRG76x1MkPr4PhoQw"
is_byokfalse
latency771
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-1779263510-oiUTW7FVlVKsl6fuyw27"
session_id(null)
api_type"completions"
id"gen-1779263510-RlcsDSZqa5tKfS0xkOjm"
upstream_id"FmgNatzRG76x1MkPr4PhoQw"
total_cost0.001038
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
93.52% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
29
310
410
510
610
79