Run: 2026-03-12-01KKHZ8V63C1QV6RTGA4DZNM66

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Data extraction
Scenario:
What's the correct time?
Duration:
19.6s
Cost:
$0.023010
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 The clock displays 3:45 and is stated to be 15 minutes behind the correct time. Adding 15 minutes to 3:45 yields exactly 4:00. This satisfies the direct arithmetic relationship between the displayed time and the slow-clock offset; the final descriptive sentence does not supply an alternative numeric value that overrides the calculation. Therefore the unambiguous HH:MM result required by the query is 04:00.
created_at"2026-03-12T21:29:32.617Z" 3/12/2026, 9:29:32 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency19110
moderation_latency(null)
generation_time19499
tokens_prompt50
tokens_completion107
native_tokens_prompt172
native_tokens_completion3816
native_tokens_completion_images0
native_tokens_reasoning3727
native_tokens_cached128
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"
usage0.0230096
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"656714c0-3068-bcfd-38b7-743f5aacf31b"
is_byokfalse
latency296
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773350972-i9zPXQrqBktgGFkOV5lh"
upstream_id"656714c0-3068-bcfd-38b7-743f5aacf31b"
total_cost0.0230096
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

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