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Run: 2026-07-09-01KX41EFJ25BH25QVCGKZF35GK
Run Details
Model:
GPT-5.6 Terra (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
9.3s
Cost:
$0.017728
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
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
Messages
Meta
AI
Rain tapped politely against the shuttered windows of Blackthorn Manor. At midnight, Eleanor Vale discovered the body beneath watching portraits. An ivory cane lay beside his pale and bloodless hand. No wound marked him, yet terror widened his cloudy eyes. Eleanor knelt, hearing distant laughter drift through the locked house. Behind her, the grandfather clock chimed thirteen slow deliberate times. Then every candle died, leaving one whisper beside her ear. “You arrived early,” breathed a voice from the darkness upstairs. Eleanor seized the cane, noticing fresh mud upon its handle. Outside, someone knocked once, then waited without entering the manor.
created_at
"2026-07-09T18:15:10.668Z"
7/9/2026, 6:15:10 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3065
moderation_latency
(null)
generation_time
9078
tokens_prompt
46
tokens_completion
465
native_tokens_prompt
41
native_tokens_completion
1175
native_tokens_completion_images
0
native_tokens_reasoning
1034
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
0.0177275
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_09afb2a657f3bc1a016a4fe52ec1b08196968bea816242eebf"
is_byok
false
latency
282
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-1783620910-yjNFq5M9OJR7ne4TpIhX"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620910-Pk1dxiz4zQQiklGhlb0T"
upstream_id
"resp_09afb2a657f3bc1a016a4fe52ec1b08196968bea816242eebf"
total_cost
0.0177275
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
100.00%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10