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Run: 2026-07-09-01KX41EX8BBC2WE8AJX80V0CV6
Run Details
Model:
GPT-5.6 Terra
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.4s
Cost:
$0.002008
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
32.38%
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 dead beneath the clocktower, clutching a silver key stained with fresh blood. Rain hammered cobblestones while twelve guests waited inside, each denying they had heard the scream echo across the square. The victim's watch had stopped precisely at eleven forty seven, although every clock nearby insisted it was midnight. Vale examined muddy footprints circling the body, then noticed one trail ended abruptly beside the locked iron gate. From above, the clocktower bell began tolling thirteen times, and someone in the crowd whispered the mayor's name.
created_at
"2026-07-09T18:15:24.706Z"
7/9/2026, 6:15:24 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
526
moderation_latency
(null)
generation_time
2194
tokens_prompt
46
tokens_completion
154
native_tokens_prompt
41
native_tokens_completion
127
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
0.0020075
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_00c3eecea9fbfc68016a4fe53cce848195a469dc954d774cc7"
is_byok
false
latency
235
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-1783620924-gFTfpgUq4zUkD8P7XGWa"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620924-O0vSeOyLQLeW5Yjq7yZL"
upstream_id
"resp_00c3eecea9fbfc68016a4fe53cce848195a469dc954d774cc7"
total_cost
0.0020075
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
32.38%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
19
1
19
2
18
3
18
4
18