diff --git a/helix/evoprotgrad.py b/helix/evoprotgrad.py
index 852558b..b26b7cb 100644
--- a/helix/evoprotgrad.py
+++ b/helix/evoprotgrad.py
@@ -5,7 +5,7 @@
 from .main import stub
 
 
-def download_esm_models(slugs: list[str] = ["facebook/esm1b_t33_650M_UR50S", "facebook/esm2_t33_650M_UR50D", "facebook/esm2_t36_3B_UR50D"]):
+def download_esm_models(slugs: list[str] = ["facebook/esm1b_t33_650M_UR50S", "facebook/esm2_t33_650M_UR50D", "facebook/esm2_t36_3B_UR50D", "facebook/esm2_t48_15B_UR50D"]):
     from transformers import EsmForMaskedLM, AutoTokenizer
     for slug in slugs:
         EsmForMaskedLM.from_pretrained(slug)
@@ -19,7 +19,7 @@ def download_esm_models(slugs: list[str] = ["facebook/esm1b_t33_650M_UR50S", "fa
     "pandas").run_function(download_esm_models)
 
 
-@stub.cls(gpu='A10G', timeout=2000, image=image, allow_cross_region_volumes=True, concurrency_limit=9)
+@stub.cls(gpu='A100', timeout=2000, image=image, allow_cross_region_volumes=True, concurrency_limit=9)
 class EvoProtGrad:
     def __init__(self, experts: list[str] = ["esm"], device: str = "cuda"):
         from evo_prot_grad import get_expert
@@ -50,7 +50,7 @@ def evolve(self, sequence: str, n_steps: int = 100, parallel_chains: int = 10, m
 
 
 @stub.local_entrypoint()
-def get_evoprotgrad_variants(sequence: str, output_csv_file: str = None, output_fasta_file: str = None, experts: str = "esm", n_steps: int = 100, num_chains: int = 20, max_mutations: int = -1, random_seed: int = None, concurrency_limit: int = 30):
+def get_evoprotgrad_variants(sequence: str, output_csv_file: str = None, output_fasta_file: str = None, experts: str = "esm", n_steps: int = 100, num_chains: int = 20, max_mutations: int = -1, random_seed: int = None, batch_size: int = 9):
     from .evoprotgrad import EvoProtGrad
     from helix.utils import dataframe_to_fasta, count_mutations
 
@@ -61,13 +61,13 @@ def get_evoprotgrad_variants(sequence: str, output_csv_file: str = None, output_
         raise Exception(
             "Must specify either output_csv_file or output_fasta_file")
 
-    num_calls = num_chains // concurrency_limit
-    remaining_chains = num_chains % concurrency_limit
+    num_calls = num_chains // batch_size
+    remaining_chains = num_chains % batch_size
     print(
         f"Running {num_chains} parallel chains in {num_calls+1} containers")
 
     results = []
-    args = [(sequence, n_steps, concurrency_limit, max_mutations, random_seed)
+    args = [(sequence, n_steps, batch_size, max_mutations, random_seed)
             for _ in range(num_calls)]
     if remaining_chains > 0:
         args.append((sequence, n_steps, remaining_chains,
diff --git a/pyproject.toml b/pyproject.toml
index e6cb6e0..62e4440 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "helixbio"
-version = "0.1.9"
+version = "0.2.0"
 description = ""
 authors = ["Ragnor Comerford <hello@ragnor.co>"]
 readme = "README.md"