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Run: 2026-07-09-01KX41MQQA7YX5AHXECR2A3DEE
Run Details
Model:
GPT-5.6 Sol
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
5.2s
Cost:
$0.004645
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
86.88%
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 manor windows while Inspector Vale examined footprints ending abruptly beneath the locked library door before dawn that morning. Inside, Lord Harrow sat upright at his desk, smiling faintly, with a silver letter opener piercing his tailored evening coat. Every clock in the room showed midnight, although the grandfather clock downstairs had just finished striking half past two loudly. On the carpet, a single white feather rested beside muddy boots belonging to no guest present in the house that night. Vale noticed the victim's final note contained four words: Ask Eleanor why the ravens returned before the winter snows arrived. Behind him, someone whispered Eleanor's name, and every candle suddenly went dark except the one beside Lord Harrow's cold hand.
created_at
"2026-07-09T18:18:35.636Z"
7/9/2026, 6:18:35 PM
model
"openai/gpt-5.6-sol-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
621
moderation_latency
(null)
generation_time
5058
tokens_prompt
46
tokens_completion
204
native_tokens_prompt
41
native_tokens_completion
148
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
0.004645
router
(null)
provider_responses
0
endpoint_id
"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id
"resp_0ae690d81e3738ae016a4fe5fbb5f08193a860f812d60cc8c5"
is_byok
false
latency
218
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-1783621115-VMJ6Wk0onXKN5wCUdQbk"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783621115-eQ9NwbkjIlNP1vKl0CCX"
upstream_id
"resp_0ae690d81e3738ae016a4fe5fbb5f08193a860f812d60cc8c5"
total_cost
0.004645
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
86.88%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
21
1
20
2
20
3
21
4
20
5
20