Run: 2026-03-12-01KKHZ3CBKFN21YEPWQSC4R2YV

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Data extraction
Scenario:
What's the correct time?
Duration:
18.2s
Cost:
$0.021078
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 runs 15 minutes behind actual time, therefore add 15 minutes to reach 04:00. The final sentence supplies supplementary wording but does not alter the arithmetic correction required by the explicit “15 minutes slow” clause. The requested output format is strictly HH:MM with no additional text.
created_at"2026-03-12T21:26:33.592Z" 3/12/2026, 9:26:33 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency17765
moderation_latency(null)
generation_time18125
tokens_prompt50
tokens_completion86
native_tokens_prompt172
native_tokens_completion3494
native_tokens_completion_images0
native_tokens_reasoning3424
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"
usage0.0210776
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"98868246-34a1-1285-7dea-2c935d3517b7"
is_byokfalse
latency264
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-1773350793-DQktcgukqTnHATR60VyI"
upstream_id"98868246-34a1-1285-7dea-2c935d3517b7"
total_cost0.0210776
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