Run: 2026-03-12-01KKHZMG98T4BXHGNADJZ4MM67

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Data extraction
Scenario:
Contextual pronoun
Duration:
1.6s
Cost:
$0.002276
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 The "he" in the final sentence refers to Spike, as he is the subject of the immediately preceding sentence and the only character described as a dog (who barks).
created_at"2026-03-12T21:35:54.668Z" 3/12/2026, 9:35:54 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1416
moderation_latency(null)
generation_time1554
tokens_prompt51
tokens_completion44
native_tokens_prompt170
native_tokens_completion361
native_tokens_completion_images0
native_tokens_reasoning324
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"
usage0.0022756
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"30a604b8-7790-5535-8f01-b02ab5366071"
is_byokfalse
latency275
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-1773351354-r4yDuJNYtqwvTXmbGHAu"
upstream_id"30a604b8-7790-5535-8f01-b02ab5366071"
total_cost0.0022756
cache_discount0.0002304
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