Run: 2026-04-24-01KQ0PRZ5MSHRRK128MDMY5GS0

Run Details

Duration:
8.3s
Cost:
$0.012625
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain silvered the manor windows. Inside, twelve guests awaited dinner. At nine, the gong sounded. But no servant brought soup. Lady Vale found candles guttering. Sir Edmund sat strangely smiling. Blood darkened his white waistcoat. His champagne glass lay shattered. Beside it, a note waited. Trust none within these walls. Thunder covered every frightened whisper. Then the locked doors rattled.
created_at"2026-04-24T21:36:45.758Z" 4/24/2026, 9:36:45 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8009
moderation_latency(null)
generation_time8048
tokens_prompt46
tokens_completion374
native_tokens_prompt41
native_tokens_completion414
native_tokens_completion_images0
native_tokens_reasoning327
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"completed"
usage0.012625
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_04bcf753ac5f90020169ebe26de01c81978643da0509046b31"
is_byokfalse
latency248
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777066605-qUg86rcva37due6o5kAI"
session_id(null)
api_type"completions"
id"gen-1777066605-9Jhuz4KWb8rXgHwb3lOl"
upstream_id"resp_04bcf753ac5f90020169ebe26de01c81978643da0509046b31"
total_cost0.012625
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115