NC Bench
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Run: 2026-05-01-01KQHT87FR8HTZSDXRB5CH41DK
Run Details
Model:
Grok 4.20 (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
37.6s
Cost:
$0.005764
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
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 had stopped jingling, leaving only the soft hum of the ovens and the warm scent of almond croissants. Flour dusted the marble counter where two women lingered, one polishing a glass case, the other nursing a cup of coffee in the late-morning light. "I found it behind the flour bins this morning." "An old key?" "Wrapped in a note that says the secret dies with the baker." "Same handwriting as the letter left on the mayor's pie stand last week." "Exactly. Someone wants that blue-ribbon recipe and they're not playing nice." "Small towns aren't supposed to have secrets like this." "Yet here we are, knee-deep in crumbs and conspiracy." "Think we should take it to the sheriff?" "Only after we try the lock on old Mrs. Harper's recipe box ourselves." "Two detectives, one cherry danish." "Make it two danishes. Sleuthing always improves my appetite." The ovens clicked off with a satisfied sigh, releasing another wave of vanilla steam as the friends exchanged a quiet, knowing smile.
created_at
"2026-05-01T13:04:36.861Z"
5/1/2026, 1:04:36 PM
model
"x-ai/grok-4.20-20260309"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
33660
moderation_latency
(null)
generation_time
37530
tokens_prompt
81
tokens_completion
900
native_tokens_prompt
185
native_tokens_completion
2240
native_tokens_completion_images
(null)
native_tokens_reasoning
2020
native_tokens_cached
64
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"
usage
0.00576405
router
(null)
provider_responses
0
endpoint_id
"3ecee37f-b217-4093-87fb-aaf0afe307af"
id
"9605b41e-2ce9-974d-a7d2-08f3ef92662f"
is_byok
false
latency
106
model_permaslug
"x-ai/grok-4.20-20260309"
provider_name
"xAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1777640676-4mRaOJc2RG2YiFr0g8q5"
session_id
(null)
api_type
"completions"
id
"gen-1777640676-FrKTEryXdjsXfCs1GHne"
upstream_id
"9605b41e-2ce9-974d-a7d2-08f3ef92662f"
total_cost
0.00576405
cache_discount
0.0000672
upstream_inference_cost
0
provider_name
"xAI"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)