Run: 2026-04-24-01KQ0PZ738CQVFC64RB3SAJQWJ

Run Details

Duration:
11.1s
Cost:
$0.015835
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
Rain hammered Blackwell Manor as midnight smothered the glass conservatory. Detective Mara Vale arrived before the servants stopped whispering downstairs. Lord Ashcroft lay beneath orchids, throat opened like crimson silk. His right hand clutched a queen's torn playing card tightly. The grandfather clock ticked twice, then refused another second entirely. Every guest claimed sleep, yet wore shoes wet with mud. Mara noticed one candle burning where no draft could reach. Beside it, fresh blood spelled her own name backward, carefully.
created_at"2026-04-24T21:40:10.48Z" 4/24/2026, 9:40:10 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10746
moderation_latency(null)
generation_time10886
tokens_prompt46
tokens_completion423
native_tokens_prompt41
native_tokens_completion521
native_tokens_completion_images0
native_tokens_reasoning409
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"
usage0.015835
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0eab551798a814070169ebe33a9fb48197a3c91b0b148ce288"
is_byokfalse
latency313
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-1777066810-2DbQAd5qpd3et47Szacn"
session_id(null)
api_type"completions"
id"gen-1777066810-M8H9XOAVhHChzPzo251j"
upstream_id"resp_0eab551798a814070169ebe33a9fb48197a3c91b0b148ce288"
total_cost0.015835
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
sentences8
wordCounts
010
110
210
310
410
510
610
710