Run: 2026-03-18-01KM0AJ1PYATFP0QZPP88NY4VT

Run Details

Duration:
3.5s
Cost:
$0.000853
Provider:
OpenAI

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
At midnight, the harbor bell tolled, summoning everyone to dock. Captain Hale lay silent inside his cabin, door locked tight. Detective Mara Quinn arrived, rain dripping from her fedora slowly. She noted a glass untouched beside a steaming tea cup. Outside, gulls screamed while lanterns flickered over wet boards below. The mate swore he heard singing, then sudden footsteps alone. A pale stranger claimed stewardship, yet avoided Mara's questions entirely. She found fingerprints on the latch, smudged by salt air. Within, Hale's pocket held a key and folded map inside. Mara stared at the body, wondering who controlled time tonight.
created_at"2026-03-18T11:16:10.601Z" 3/18/2026, 11:16:10 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3098
moderation_latency(null)
generation_time3368
tokens_prompt46
tokens_completion171
native_tokens_prompt41
native_tokens_completion676
native_tokens_completion_images0
native_tokens_reasoning528
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0008532
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_04c1580d728fac300169ba897ab24881969f590a5d233b8f9c"
is_byokfalse
latency233
model_permaslug"openai/gpt-5.4-nano-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773832570-8iNP3SiSjilfKm0ufmGm"
upstream_id"resp_04c1580d728fac300169ba897ab24881969f590a5d233b8f9c"
total_cost0.0008532
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910