Run: 2026-02-20-01KHYA81CHV8B0H3KM6R0X1995

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Contextual pronoun
Duration:
2.7s
Cost:
$0.000132
Provider:
xAI

Evaluation summary

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

Model input

User/Human
Who does "he" refer to in the last sentence? Only return the name. Tom and Jerry were playing in the yard. Spike, the dog, was watching them from his kennel. Suddenly, he started barking loudly.

Model response

AI
**Spike**
created_at"2026-02-20T20:00:50.077Z" 2/20/2026, 8:00:50 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency486
moderation_latency(null)
generation_time2628
tokens_prompt51
tokens_completion26
native_tokens_prompt202
native_tokens_completion228
native_tokens_completion_images0
native_tokens_reasoning225
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"
usage0.00013175
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"6d322e22-d774-a6a6-b6e5-11b2ba532c9e"
is_byokfalse
latency218
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617650-zJrv8kz15OgVLkqRjkEr"
upstream_id"6d322e22-d774-a6a6-b6e5-11b2ba532c9e"
total_cost0.00013175
cache_discount0.00002265
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
Fail Matches text
Case sensitive: Spike
 n/a
Pass Matches Regex
/\bSpike\b/
 n/a
no eval