Run: 2026-02-16-01KHK9ECZHS4RW7MZJAG4P13EV

Run Details

Model:
GPT-5.2
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
7.8s
Cost:
$0.006526
Provider:
OpenAI

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
Fog clung to Blackwater Pier. Detective Mara Quinn arrived alone. A siren wailed somewhere inland. Fishermen watched silent uneasy faces. The lighthouse beam cut sharply. Beneath crates lay a body. Its pockets held wet matches. No blood yet shoes gleamed. A silver ring was missing. Mara noted footprints in silt. One set ended abruptly there. The tide began erasing evidence.
created_at"2026-02-16T13:15:19.778124+00:00" 2/16/2026, 1:15:19 PM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6775
moderation_latency(null)
generation_time7756
tokens_prompt46
tokens_completion108
native_tokens_prompt41
native_tokens_completion461
native_tokens_completion_images0
native_tokens_reasoning359
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"
usage0.00652575
router(null)
provider_responses
0
id"resp_0e032455b887323c016993185f4c888196b91f3e1188b67f90"
status200
is_byokfalse
latency180
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771247711-7XPZa2wfgIjq8ddPwpUr"
upstream_id"resp_0e032455b887323c016993185f4c888196b91f3e1188b67f90"
total_cost0.00652575
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115