Run: 2026-07-09-01KX3ZZMRQ67NVY7F09T5N1QYE

Run Details

Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
2.3s
Cost:
$0.001827
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
80.56% 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 lashed Blackthorn Manor as guests gathered for dinner. Detective Mara Vale arrived late, carrying flowers and suspicion. Inside, candles trembled beside portraits of unsmiling ancestral faces. Lord Blackthorn greeted everyone warmly, though his eyes remained cold. At midnight, thunder swallowed the sound of shattering glass. Then the lights died, leaving whispers drifting through darkness. A scream erupted upstairs, sharp enough to freeze breathing hearts. When lamps returned, Lord Blackthorn lay bleeding beneath portraits.
created_at"2026-07-09T17:49:35.904Z" 7/9/2026, 5:49:35 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency644
moderation_latency(null)
generation_time2196
tokens_prompt46
tokens_completion143
native_tokens_prompt41
native_tokens_completion115
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"
usage0.0018275
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_09a02c141659e5db016a4fdf2ffb308190bc5fa52a4607db09"
is_byokfalse
latency207
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-1783619375-HdfolygjrzSSmjiliVTK"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619375-XdmoW0ZUzLBp7YkvzZOT"
upstream_id"resp_09a02c141659e5db016a4fdf2ffb308190bc5fa52a4607db09"
total_cost0.0018275
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
80.56% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
09
19
29
310
49
59
610
79