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Run: 2026-07-09-01KX41DXGFVTJYFJ5K1K2BBYXD
Run Details
Model:
GPT-5.6 Luna (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
3.3s
Cost:
$0.002557
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
60.65%
Count dialogue tags
(details)
Model input
User/Human
You are an expert novel writer in the cozy mystery genre. Write a scene of about 200 words, with dialogue between two characters. The dialogue should be unattributed, meaning the speaker is not explicitly mentioned. The scene should be set in a small town bakery. Only return the story, nothing else.
Model response
Messages
Meta
AI
The bell above the bakery door gave a nervous little jingle, though no one had entered. Mara paused over the cinnamon rolls. “That’s the third time this morning.” “Draft,”
Clara replied
, sliding a tray into the oven. “Or a guilty conscience.” On the counter, beside the cooling lemon loaves, lay the mayor’s silver spoon. It had vanished from the town’s Founders’ Day tea yesterday and now wore a smear of raspberry jam. Mara lifted it with a napkin. “Why would a thief bring it here?” “Maybe the thief wanted breakfast.” “Then he chose poorly. The raspberry jam is for the scones.” Clara glanced toward the empty kitchen doorway. “You’re enjoying this.” “I enjoy pastries. Murder investigations are merely a seasonal flavor.” A floorboard creaked behind them. Both women turned. The bakery cat, Pickle, emerged from beneath the worktable with a blue ribbon in his teeth. He dropped it at Mara’s shoes. Clara crouched and picked it up. “The mayor wore this on his lapel.” “And Pickle found it under the flour bins.” Mara studied the paw prints dusting the ribbon. “Someone hid the spoon here, then crawled through the kitchen.” “Crawled?” “Unless your cat has learned to open locked cupboards.” Pickle yowled and sprang onto the counter, knocking a paper bag to the floor. Something inside clinked. Clara stared at Mara. Mara reached for the bag. “Please let it be an éclair.” The silver spoon rolled into the sunlight.
created_at
"2026-07-09T18:14:52.182Z"
7/9/2026, 6:14:52 PM
model
"openai/gpt-5.6-luna-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2131
moderation_latency
(null)
generation_time
3053
tokens_prompt
81
tokens_completion
415
native_tokens_prompt
67
native_tokens_completion
415
native_tokens_completion_images
0
native_tokens_reasoning
83
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
0.002557
router
(null)
provider_responses
0
endpoint_id
"eebea444-34a5-4642-a766-cb319471d33a"
id
"resp_0d93254806932c8e016a4fe51c40708196b39064625caefea8"
is_byok
false
latency
222
model_permaslug
"openai/gpt-5.6-luna-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-1783620892-zneo6kTmR6s4Y7WznRkk"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620892-JZYW4La7VsqvTN4I9RqC"
upstream_id
"resp_0d93254806932c8e016a4fe51c40708196b39064625caefea8"
total_cost
0.002557
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
60.65%
Count dialogue tags
n/a
neededClean
false
dialogueTags
0
"Clara replied"