Run: 2026-07-09-01KX41DD6W3HDVZFESXBTGXXB0

Run Details

Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.6s
Cost:
$0.001692
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
25.31% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain battered Blackthorn Manor as Inspector Vale arrived, summoned by a scream that had silenced every clock inside. In the library, Lord Ashcombe lay beside the hearth, his white cravat darkened by a single, precise wound. Seven guests watched from velvet chairs, each wearing expressions of shock carefully tailored to conceal something far colder beneath. Vale noticed the locked windows, the untouched brandy, and muddy footprints ending abruptly before the victim's outstretched hand.
created_at"2026-07-09T18:14:35.547Z" 7/9/2026, 6:14:35 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency533
moderation_latency(null)
generation_time2181
tokens_prompt46
tokens_completion126
native_tokens_prompt41
native_tokens_completion106
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"
service_tier"default"
usage0.0016925
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_08e0f1ff21e22b11016a4fe50bade8819394554719268250e5"
is_byokfalse
latency241
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620875-m7bPOL4eLxWxnbH9XERu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620875-MftvPifBGdtbN0eLN6uh"
upstream_id"resp_08e0f1ff21e22b11016a4fe50bade8819394554719268250e5"
total_cost0.0016925
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
25.31% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
018
118
219
318