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Run: 2026-07-09-01KX411N0YXB5MJFR95KT5G644
Run Details
Model:
GPT-5.6 Sol
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
5.0s
Cost:
$0.004765
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
93.44%
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 polished the cobblestones outside Blackthorn Manor as Inspector Vale arrived, summoned by a letter mailed three days after death. Inside, twelve dinner guests sat silently around the table, while their host lay facedown beside an untouched birthday cake. The grandfather clock struck midnight, although its hands showed eleven, and every candle guttered beneath an inexplicable breath of winter. Vale examined the corpse, noticing red wax beneath one fingernail and a tiny brass key clenched tightly between perfect teeth. Nobody admitted knowing the key, but Lady Blackthorn suddenly covered the empty chain hanging conspicuously around her pale, trembling neck. Then the locked library door creaked open upstairs, and a dead man’s voice calmly invited Inspector Vale to enter alone.
created_at
"2026-07-09T18:08:10.29Z"
7/9/2026, 6:08:10 PM
model
"openai/gpt-5.6-sol-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1562
moderation_latency
(null)
generation_time
4884
tokens_prompt
46
tokens_completion
207
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
0.004765
router
(null)
provider_responses
0
endpoint_id
"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id
"resp_08411e379adb5300016a4fe38a5f288193840cf852feb798f5"
is_byok
false
latency
210
model_permaslug
"openai/gpt-5.6-sol-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-1783620490-YWfSbFsjbs4aMlxE4Njv"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620490-f8fB9Xcj8jcY3O9y3NXG"
upstream_id
"resp_08411e379adb5300016a4fe38a5f288193840cf852feb798f5"
total_cost
0.004765
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
93.44%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
20
1
19
2
20
3
20
4
20
5
20