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Run: 2026-07-09-01KX413D7EG5SCDJG2CDRKKN01
Run Details
Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
4.1s
Cost:
$0.002383
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
29.24%
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
Messages
Meta
AI
Rain battered Blackthorn Manor as Inspector Vale arrived, summoned by a message that promised murder before midnight exactly. The butler admitted him silently, pale hands trembling beneath silver trays, while thunder erased the distant village church bells. In the drawing room, seven guests watched a fire consume letters, each wearing expressions carefully borrowed from innocence. Lady Blackthorn reclined beside the hearth, her emerald necklace missing, her throat bruised, and her smile disturbingly composed tonight. “Someone has taken my jewel,” she whispered, “and unless it returns, one of you will die before dawn.” A clock struck eleven, though every guest swore later that its hands had stopped precisely twenty minutes earlier.
created_at
"2026-07-09T18:09:07.829Z"
7/9/2026, 6:09:07 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1851
moderation_latency
(null)
generation_time
4013
tokens_prompt
46
tokens_completion
195
native_tokens_prompt
41
native_tokens_completion
152
native_tokens_completion_images
0
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
service_tier
"default"
usage
0.0023825
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_0338a5e112b2c5e0016a4fe3c53ff8819586fac356d24c4ea4"
is_byok
false
latency
1545
model_permaslug
"openai/gpt-5.6-terra-20260709"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1783620547-RYSGSfJnHeYA5Kbnva85"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620547-Xn6I0jabzGRxglPqd8Sv"
upstream_id
"resp_0338a5e112b2c5e0016a4fe3c53ff8819586fac356d24c4ea4"
total_cost
0.0023825
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
29.24%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
18
1
19
2
18
3
19
4
18
5
18