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Run: 2026-07-09-01KX40FQ5TQQX85885DNJCXG3G
Run Details
Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
4.2s
Cost:
$0.001737
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
46.93%
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
At midnight, Inspector Vale found the mayor's body beneath the clocktower, smiling faintly despite the knife lodged neatly between ribs. Rain polished cobblestones outside, while twelve guests waited silently in the ballroom, each holding an untouched glass of champagne. The victim's pocket contained a silver key, a torn photograph, and a note reading, “Ask who heard bells.” Vale examined the wound, then glanced upward, noticing the clock hands pointed stubbornly toward eleven minutes past midnight.
created_at
"2026-07-09T17:58:22.659Z"
7/9/2026, 5:58:22 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
778
moderation_latency
(null)
generation_time
4124
tokens_prompt
46
tokens_completion
132
native_tokens_prompt
41
native_tokens_completion
109
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
0.0017375
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_011de26cbbd4254f016a4fe13ec49881938939dce68fd14e7c"
is_byok
false
latency
321
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-1783619902-utAZ3XN8QAs6Qq9j8T3L"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783619902-ptHnWm9m2zGgqjmg2jOf"
upstream_id
"resp_011de26cbbd4254f016a4fe13ec49881938939dce68fd14e7c"
total_cost
0.0017375
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
46.93%
Matches word count
n/a
neededClean
false
sentences
4
wordCounts
0
20
1
19
2
18
3
18