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Run: 2026-07-09-01KX40ZSWJDYPQXJVVEA3REQH2
Run Details
Model:
GPT-5.6 Luna (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
3.7s
Cost:
$0.002881
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 over the door gave a nervous jingle as rain tapped the bakery windows. Behind the counter, Clara lifted a tray of cinnamon rolls and frowned. “Tell me that isn’t what I think it is.” Mabel peered into the empty space beside the pastries. “The mayor’s campaign pin?” “Wedged in the dough. Right before baking.” Mabel adjusted her flowered spectacles. “That explains the metallic taste.” Clara lowered her voice. “It was in the display case this morning. Now the mayor is claiming someone stole his lucky pin.” “And you found it in a cinnamon roll?” “Found half of it. The other half is missing.” Mabel glanced toward the front window, where muddy footprints crossed the tiles and vanished near the flour sacks. “Who had access to the kitchen?” “Only you, me, and Mr. Pritchard.” “The mayor’s opponent?” “He came in at dawn, pretending to order bran muffins. He left with six.” “Pritchard hates bran muffins.” Clara reached beneath the counter and produced a crumpled paper bag. “He left this behind.” Mabel opened it. A smear of blue icing marked the inside, along with a single copper button. “His coat has brass buttons,”
she whispered
. “And the bakery’s old delivery cart has copper ones.” They stared at each other as the bell jingled again. Clara slipped the pin fragment into her apron. “Then we’d better find out who delivered the mayor’s trouble.” Mabel smiled. “Before someone orders another batch.”
created_at
"2026-07-09T18:07:09.724Z"
7/9/2026, 6:07:09 PM
model
"openai/gpt-5.6-luna-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1885
moderation_latency
(null)
generation_time
3311
tokens_prompt
81
tokens_completion
551
native_tokens_prompt
67
native_tokens_completion
469
native_tokens_completion_images
0
native_tokens_reasoning
143
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
0.002881
router
(null)
provider_responses
0
endpoint_id
"eebea444-34a5-4642-a766-cb319471d33a"
id
"resp_0829342abbde0dd0016a4fe34dca108197828be4a6b3d4d784"
is_byok
false
latency
258
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-1783620429-2N03MosdlrT0pnXiNcXi"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620429-zwjsMoxKsaTm3d6Refp1"
upstream_id
"resp_0829342abbde0dd0016a4fe34dca108197828be4a6b3d4d784"
total_cost
0.002881
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
"she whispered"