Run: 2026-07-09-01KX41B30JPS50HEM3PG77VJAS

Run Details

Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
2.9s
Cost:
$0.001737
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
77.32% 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 hammered Blackthorn Manor as guests arrived for dinner. Sir Julian Vane greeted them beneath flickering chandelier light. His smile vanished when thunder swallowed the distant clocktower chime. Detective Mara Bell noticed mud staining his polished shoes. Nobody mentioned the locked library or missing silver letter. At midnight, screams erupted behind the crimson drawing-room curtains. Julian lay dead beside the fireplace, throat neatly cut. Every guest claimed innocence, though none appeared remotely surprised.
created_at"2026-07-09T18:13:19.513Z" 7/9/2026, 6:13:19 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency622
moderation_latency(null)
generation_time2748
tokens_prompt46
tokens_completion139
native_tokens_prompt41
native_tokens_completion109
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"
usage0.0017375
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_01ff0be434057730016a4fe4bf96608197a75162f33c48d357"
is_byokfalse
latency292
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-1783620799-BM2bQcVAyDftOue4qL5d"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620799-2ZDco0qvw73oonPY6bBG"
upstream_id"resp_01ff0be434057730016a4fe4bf96608197a75162f33c48d357"
total_cost0.0017375
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
77.32% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
09
19
210
39
49
59
69
79