Run: 2026-02-20-01KHY7VN7S3SC9DMZQF9M0DESZ

Run Details

Model:
Grok 4 Fast
Test:
Data extraction
Scenario:
What's the correct time?
Duration:
31.6s
Cost:
$0.002224
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"2026-02-20T19:19:07.269Z" 2/20/2026, 7:19:07 PM
model"x-ai/grok-4-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency31528
moderation_latency(null)
generation_time31552
tokens_prompt50
tokens_completion2
native_tokens_prompt204
native_tokens_completion4412
native_tokens_completion_images0
native_tokens_reasoning4409
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"
usage0.00222415
router(null)
provider_responses
0
endpoint_id"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id"859f0cfe-decc-bded-7543-689f3f8d9753"
is_byokfalse
latency84
model_permaslug"x-ai/grok-4-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771615147-6lzqssoIv5gIAez76tlp"
upstream_id"859f0cfe-decc-bded-7543-689f3f8d9753"
total_cost0.00222415
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