Run: 2026-02-20-01KHYA9K6AHM2ECVJXR6BRYR6F

Run Details

Model:
Grok 4.1 Fast
Test:
Data extraction
Scenario:
Contextual pronoun
Duration:
2.2s
Cost:
$0.000091
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"2026-02-20T20:01:41.077Z" 2/20/2026, 8:01:41 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency375
moderation_latency(null)
generation_time2146
tokens_prompt51
tokens_completion25
native_tokens_prompt202
native_tokens_completion161
native_tokens_completion_images0
native_tokens_reasoning158
native_tokens_cached201
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"
usage0.00009075
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"3ac3f82c-80e1-d602-0a6e-85339f035846"
is_byokfalse
latency234
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617701-jd7kCT0DnKIcfNMGChMu"
upstream_id"3ac3f82c-80e1-d602-0a6e-85339f035846"
total_cost0.00009075
cache_discount0.00003015
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