Run: 2026-05-01-01KQHR5JWSW6D906SBF35BW8N6

Run Details

Duration:
25.4s
Cost:
$0.007179
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old mansion loomed darkly. Rain lashed against tall windows. Inside guests danced quite joyfully. Millionaire announced surprise inheritance news. A gunshot rang out suddenly. Host collapsed clutching his chest. Blood trickled from fatal wound. Detective observed the scene closely.
created_at"2026-05-01T12:28:13.086Z" 5/1/2026, 12:28:13 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency24969
moderation_latency(null)
generation_time25331
tokens_prompt46
tokens_completion476
native_tokens_prompt159
native_tokens_completion2819
native_tokens_completion_images(null)
native_tokens_reasoning2766
native_tokens_cached64
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00717905
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"bf986c2b-6e96-9c2a-b218-b5a8f432297f"
is_byokfalse
latency95
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777638493-M9E7cyqJF2qAxnZzGNek"
session_id(null)
api_type"completions"
id"gen-1777638493-oIabCweIPkiujblzRthc"
upstream_id"bf986c2b-6e96-9c2a-b218-b5a8f432297f"
total_cost0.00717905
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
05
15
25
35
45
55
65
75