fix: new model value

notebooks/official/gen_ai/batch_eval_llm.ipynb

@@ -99,7 +99,7 @@
         "\n",
         "| large_model_reference | supported accelerator_type | supported region |\n",
         "|---|---|---|\n",
-        "|  `BISON` | `TPU_V3`, `NVIDIA_TESLA_A100` | europe-west4, us-central1 |\n",
+        "|  `text-bison@001` | `TPU_V3`, `NVIDIA_TESLA_A100` | europe-west4, us-central1 |\n",
         "|  `t5-small` | `TPU_V3`, `NVIDIA_TESLA_A100` | europe-west4, us-central1 |\n",
         "|  `t5-large` | `TPU_V3` | europe-west4 |\n",
         "|  `t5-xl` | `TPU_V3` | europe-west4 |\n",
@@ -538,7 +538,7 @@
         "    pipeline_root=PIPELINE_ROOT,\n",
         "    template_path=INFER_PIPELINE_PKG_PATH,\n",
         "    parameter_values={\n",
-        "        \"large_model_reference\": \"BISON\",  # see Table 1 for valid values.\n",
+        "        \"large_model_reference\": \"t5-xl\",  # see Table 1 for valid values.\n",
         "        \"model_checkpoint\": MODEL_CHECKPOINT,\n",
         "        \"prompt_dataset\": \"gs://vertex-ai/generative-ai/rlhf/text_small/reddit_tfds/val/*.jsonl\",\n",
         "        \"instruction\": \"Summarize in less than 50 words.\",\n",