NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-05-01-01KQHQKH0837W0V15YBV6EQWJR
Run Details
Model:
Grok 4.20
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
5.3s
Cost:
$0.000764
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 door jingled as Harriet stepped into Flour & Folly, the scent of warm cinnamon and vanilla wrapping around her like an old friend. Mrs. Pickering was already at the counter, tapping her foot. “Those lemon bars yesterday were dry as dust. I nearly choked.” “Strange, because every single one sold before noon. Perhaps your taste buds are the ones getting dusty.” A tray of fresh scones slid across the marble. Steam curled upward. “Try one of these instead. Cranberry-orange. Still warm.” A pause. The sound of a napkin unfolding. “If I keel over from arsenic, I expect you to close the shop out of respect.” “Only if you promise to haunt the oven. It’s been acting up again.” A delicate crunch, then a soft sigh that seemed to melt the morning frost from the windows. “Oh, bother. These are perfect. You always were too clever for your own good.” Harriet smiled behind the counter, wiping her hands on her apron. “And you were always too honest. Another dozen for the bridge club?” “Make it two. And throw in some of that gossip about the new librarian while you’re at it.”
created_at
"2026-05-01T12:18:21.326Z"
5/1/2026, 12:18:21 PM
model
"x-ai/grok-4.20-20260309"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
774
moderation_latency
(null)
generation_time
5274
tokens_prompt
81
tokens_completion
306
native_tokens_prompt
183
native_tokens_completion
241
native_tokens_completion_images
(null)
native_tokens_reasoning
0
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
0.00076405
router
(null)
provider_responses
0
endpoint_id
"3ecee37f-b217-4093-87fb-aaf0afe307af"
id
"930f2dc9-b92c-9a89-86eb-b6f1d0280a6a"
is_byok
false
latency
451
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-1777637901-27I2MtLT8tci4gLHNqST"
session_id
(null)
api_type
"completions"
id
"gen-1777637901-5JLkqeDBRB02JgxL5Uyp"
upstream_id
"930f2dc9-b92c-9a89-86eb-b6f1d0280a6a"
total_cost
0.00076405
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)