Run: 2026-04-24-01KQ0PEMVZZ2N5ABVZ35RT4Y2E

Run Details

Model:
GPT-5.5
Duration:
1.8s
Cost:
$0.001525
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 stitched midnight over Blackmere. Inspector Vale found candles burning. Lord Ashcroft lay beautifully murdered. No window showed forced entry. Guests whispered behind locked doors. Somebody laughed beneath the floorboards.
created_at"2026-04-24T21:31:07.526Z" 4/24/2026, 9:31:07 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency584
moderation_latency(null)
generation_time1768
tokens_prompt46
tokens_completion66
native_tokens_prompt41
native_tokens_completion44
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"completed"
usage0.001525
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_06e0df9e2a8b6a4c0169ebe11b9f208193927816129559c745"
is_byokfalse
latency358
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-1777066267-A3v5JSfDNgYBVnU8eMH2"
session_id(null)
api_type"completions"
id"gen-1777066267-rLh3zpA3KPJHOyjmkjCV"
upstream_id"resp_06e0df9e2a8b6a4c0169ebe11b9f208193927816129559c745"
total_cost0.001525
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
sentences6
wordCounts
05
15
25
35
45
55