Run: 2026-02-20-01KHYA73X15DMJX5F153GVAFNM

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
What's the correct time?
Duration:
55.3s
Cost:
$0.003786
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Fail Matches Regex (details)

Model input

User/Human
What is the correct time based on the following text? Only return the time in HH:MM format, nothing else. The clock shows 3:45. It's 15 minutes slow. The actual time is a quarter past an hour.

Model response

AI
04:00
created_at"2026-02-20T20:00:19.886Z" 2/20/2026, 8:00:19 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency589
moderation_latency(null)
generation_time55164
tokens_prompt50
tokens_completion833
native_tokens_prompt204
native_tokens_completion7536
native_tokens_completion_images0
native_tokens_reasoning7533
native_tokens_cached151
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00378615
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"7b26d7fc-b9be-53a9-8b4e-358aedaa4efc"
is_byokfalse
latency396
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617619-wXs2fZvGuCXT1g2bNttf"
upstream_id"7b26d7fc-b9be-53a9-8b4e-358aedaa4efc"
total_cost0.00378615
cache_discount0.00002265
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Fail Matches Regex
/\b0?4:15\b/i
 n/a