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Run: 2026-07-09-01KX415J5F1P6TVSFR067WTCDG
Run Details
Model:
GPT-5.6 Terra (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
5.3s
Cost:
$0.009267
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 polished the cobblestones outside Blackthorn Manor shortly before midnight. Inside, twelve guests waited beneath chandeliers, pretending not to shiver. Then the library clock chimed, and every candle suddenly vanished. Someone screamed near the conservatory, where Sir Alistair lay bleeding. His silver key glittered beside an unopened letter sealed tightly. Inspector Vale arrived smiling, although nobody had summoned her tonight. She studied the corpse, then noticed mud upon his cufflinks. The mud matched footprints leading upstairs toward the locked nursery. Behind its door, a child hummed the dead man's song.
created_at
"2026-07-09T18:10:18.429Z"
7/9/2026, 6:10:18 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4632
moderation_latency
(null)
generation_time
5066
tokens_prompt
46
tokens_completion
174
native_tokens_prompt
41
native_tokens_completion
611
native_tokens_completion_images
0
native_tokens_reasoning
479
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
0.0092675
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_0fb93331b01de973016a4fe40a88e88190872c1d5fc668ea75"
is_byok
false
latency
229
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-1783620618-ClDbmCiXqa6cvSdOL98E"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620618-ZPsejHFqFl2xqmwQNt6S"
upstream_id
"resp_0fb93331b01de973016a4fe40a88e88190872c1d5fc668ea75"
total_cost
0.0092675
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
9
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10