Run: 2026-02-20-01KHY9V1X1N106P6SHV99W0TAR

Run Details

Model:
Grok 4 Fast
Test:
Data extraction
Scenario:
Indirect birth year
Duration:
616ms
Cost:
$0.000066
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Pass Matches text (details)
Pass Matches Regex (details)
no eval Overall

Model input

User/Human
What year was Sarah born? Only return the year as a four-digit number. In 2023, Sarah celebrated her 30th birthday with a big party. Her younger sister, who is 5 years younger, couldn't attend because she was studying abroad.

Model response

AI
1993
created_at"2026-02-20T19:53:44.621Z" 2/20/2026, 7:53:44 PM
model"x-ai/grok-4-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency555
moderation_latency(null)
generation_time555
tokens_prompt58
tokens_completion1
native_tokens_prompt208
native_tokens_completion110
native_tokens_completion_images0
native_tokens_reasoning108
native_tokens_cached207
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"
usage0.00006555
router(null)
provider_responses
0
endpoint_id"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id"1a9f92a1-58ec-8fb5-e6dc-c4cdcc056ad2"
is_byokfalse
latency89
model_permaslug"x-ai/grok-4-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617224-cNgxWRAP3mC5D6Xanvsn"
upstream_id"1a9f92a1-58ec-8fb5-e6dc-c4cdcc056ad2"
total_cost0.00006555
cache_discount0.00003105
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: 1993
 n/a
Pass Matches Regex
/\b1993\b/
 n/a
no eval