Run: 2026-04-24-01KQ0MW28A7P7QHNS96ENS8RV5

Run Details

Model:
GPT-5.5
Duration:
2.3s
Cost:
$0.001915
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 needled the station windows. Inspector Vale counted arriving passengers. One suitcase dripped beneath benches. Nobody claimed it after midnight. Then the porter screamed outside. Blood traced rails toward town. Inside, the timetable stopped ticking. Vale whispered, "Lock every door."
created_at"2026-04-24T21:03:30.066Z" 4/24/2026, 9:03:30 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency574
moderation_latency(null)
generation_time2198
tokens_prompt46
tokens_completion78
native_tokens_prompt41
native_tokens_completion57
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"
usage0.001915
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0fa37ac13dd4d8ac0169ebdaa2280881969c8466d3e0dd912b"
is_byokfalse
latency334
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-1777064610-DrgvbJWWKeGrpWmPkkOV"
session_id(null)
api_type"completions"
id"gen-1777064610-GI1VOhpWb2Iz03PJLIKs"
upstream_id"resp_0fa37ac13dd4d8ac0169ebdaa2280881969c8466d3e0dd912b"
total_cost0.001915
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
05
15
25
35
45
55
65
75