diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 08e82c45..7e56fe29 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.1.0-alpha.15"
+  ".": "0.1.0-alpha.16"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index ab9fbe2f..c1c522e8 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,3 +1,3 @@
 configured_endpoints: 36
-openapi_spec_hash: 2e10455457751c9efb36adc4399c684d
+openapi_spec_hash: 6311021a3aba7ac56cc3b474762945c0
 config_hash: adbedb6317fca6f566f54564cc341846
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cff410b1..658e0649 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## 0.1.0-alpha.16 (2025-04-18)
+
+Full Changelog: [v0.1.0-alpha.15...v0.1.0-alpha.16](https://github.com/cleanlab/codex-python/compare/v0.1.0-alpha.15...v0.1.0-alpha.16)
+
+### Features
+
+* **api:** api update ([f5c1cee](https://github.com/cleanlab/codex-python/commit/f5c1cee46c42ab67bc09befff130fe88b35f06ac))
+
+
+### Chores
+
+* **internal:** base client updates ([e7d165b](https://github.com/cleanlab/codex-python/commit/e7d165b98c7536415b74fe92c558a50ee8c5861d))
+* **internal:** bump pyright version ([5eac17b](https://github.com/cleanlab/codex-python/commit/5eac17b4e3ef210077d2bed75a7d7b4954d73086))
+* **internal:** version bump ([9326b60](https://github.com/cleanlab/codex-python/commit/9326b60bf403d4a5c981b613e715ea80ef29ad8e))
+
 ## 0.1.0-alpha.15 (2025-04-15)
 
 Full Changelog: [v0.1.0-alpha.14...v0.1.0-alpha.15](https://github.com/cleanlab/codex-python/compare/v0.1.0-alpha.14...v0.1.0-alpha.15)
diff --git a/pyproject.toml b/pyproject.toml
index 686a2e13..b98b79a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "codex-sdk"
-version = "0.1.0-alpha.15"
+version = "0.1.0-alpha.16"
 description = "Internal SDK used within cleanlab-codex package. Refer to https://pypi.org/project/cleanlab-codex/ instead."
 dynamic = ["readme"]
 license = "MIT"
@@ -42,7 +42,7 @@ Repository = "https://github.com/cleanlab/codex-python"
 managed = true
 # version pins are in requirements-dev.lock
 dev-dependencies = [
-    "pyright>=1.1.359",
+    "pyright==1.1.399",
     "mypy",
     "respx",
     "pytest",
diff --git a/requirements-dev.lock b/requirements-dev.lock
index 5b7189d6..7fcfe657 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -69,7 +69,7 @@ pydantic-core==2.27.1
     # via pydantic
 pygments==2.18.0
     # via rich
-pyright==1.1.392.post0
+pyright==1.1.399
 pytest==8.3.3
     # via pytest-asyncio
 pytest-asyncio==0.24.0
diff --git a/src/codex/_base_client.py b/src/codex/_base_client.py
index 564ab8a7..69be76db 100644
--- a/src/codex/_base_client.py
+++ b/src/codex/_base_client.py
@@ -98,7 +98,11 @@
 _AsyncStreamT = TypeVar("_AsyncStreamT", bound=AsyncStream[Any])
 
 if TYPE_CHECKING:
-    from httpx._config import DEFAULT_TIMEOUT_CONFIG as HTTPX_DEFAULT_TIMEOUT
+    from httpx._config import (
+        DEFAULT_TIMEOUT_CONFIG,  # pyright: ignore[reportPrivateImportUsage]
+    )
+
+    HTTPX_DEFAULT_TIMEOUT = DEFAULT_TIMEOUT_CONFIG
 else:
     try:
         from httpx._config import DEFAULT_TIMEOUT_CONFIG as HTTPX_DEFAULT_TIMEOUT
@@ -115,6 +119,7 @@ class PageInfo:
 
     url: URL | NotGiven
     params: Query | NotGiven
+    json: Body | NotGiven
 
     @overload
     def __init__(
@@ -130,19 +135,30 @@ def __init__(
         params: Query,
     ) -> None: ...
 
+    @overload
+    def __init__(
+        self,
+        *,
+        json: Body,
+    ) -> None: ...
+
     def __init__(
         self,
         *,
         url: URL | NotGiven = NOT_GIVEN,
+        json: Body | NotGiven = NOT_GIVEN,
         params: Query | NotGiven = NOT_GIVEN,
     ) -> None:
         self.url = url
+        self.json = json
         self.params = params
 
     @override
     def __repr__(self) -> str:
         if self.url:
             return f"{self.__class__.__name__}(url={self.url})"
+        if self.json:
+            return f"{self.__class__.__name__}(json={self.json})"
         return f"{self.__class__.__name__}(params={self.params})"
 
 
@@ -191,6 +207,19 @@ def _info_to_options(self, info: PageInfo) -> FinalRequestOptions:
             options.url = str(url)
             return options
 
+        if not isinstance(info.json, NotGiven):
+            if not is_mapping(info.json):
+                raise TypeError("Pagination is only supported with mappings")
+
+            if not options.json_data:
+                options.json_data = {**info.json}
+            else:
+                if not is_mapping(options.json_data):
+                    raise TypeError("Pagination is only supported with mappings")
+
+                options.json_data = {**options.json_data, **info.json}
+            return options
+
         raise ValueError("Unexpected PageInfo state")
 
 
diff --git a/src/codex/_models.py b/src/codex/_models.py
index 34935716..58b9263e 100644
--- a/src/codex/_models.py
+++ b/src/codex/_models.py
@@ -19,7 +19,6 @@
 )
 
 import pydantic
-import pydantic.generics
 from pydantic.fields import FieldInfo
 
 from ._types import (
diff --git a/src/codex/_utils/_typing.py b/src/codex/_utils/_typing.py
index 1958820f..1bac9542 100644
--- a/src/codex/_utils/_typing.py
+++ b/src/codex/_utils/_typing.py
@@ -110,7 +110,7 @@ class MyResponse(Foo[_T]):
     ```
     """
     cls = cast(object, get_origin(typ) or typ)
-    if cls in generic_bases:
+    if cls in generic_bases:  # pyright: ignore[reportUnnecessaryContains]
         # we're given the class directly
         return extract_type_arg(typ, index)
 
diff --git a/src/codex/_version.py b/src/codex/_version.py
index d4919cf4..b99310c3 100644
--- a/src/codex/_version.py
+++ b/src/codex/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "codex"
-__version__ = "0.1.0-alpha.15"  # x-release-please-version
+__version__ = "0.1.0-alpha.16"  # x-release-please-version
diff --git a/src/codex/resources/projects/clusters.py b/src/codex/resources/projects/clusters.py
index f376c0b1..e35e8ae8 100644
--- a/src/codex/resources/projects/clusters.py
+++ b/src/codex/resources/projects/clusters.py
@@ -50,10 +50,11 @@ def list(
         self,
         project_id: str,
         *,
+        eval_issue_types: List[Literal["hallucination", "search_failure", "unhelpful"]] | NotGiven = NOT_GIVEN,
         limit: int | NotGiven = NOT_GIVEN,
         offset: int | NotGiven = NOT_GIVEN,
         order: Literal["asc", "desc"] | NotGiven = NOT_GIVEN,
-        sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank"]]
+        sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank", "eval_score"]]
         | NotGiven = NOT_GIVEN,
         states: List[Literal["unanswered", "draft", "published", "published_with_draft"]] | NotGiven = NOT_GIVEN,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
@@ -87,6 +88,7 @@ def list(
                 timeout=timeout,
                 query=maybe_transform(
                     {
+                        "eval_issue_types": eval_issue_types,
                         "limit": limit,
                         "offset": offset,
                         "order": order,
@@ -162,10 +164,11 @@ def list(
         self,
         project_id: str,
         *,
+        eval_issue_types: List[Literal["hallucination", "search_failure", "unhelpful"]] | NotGiven = NOT_GIVEN,
         limit: int | NotGiven = NOT_GIVEN,
         offset: int | NotGiven = NOT_GIVEN,
         order: Literal["asc", "desc"] | NotGiven = NOT_GIVEN,
-        sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank"]]
+        sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank", "eval_score"]]
         | NotGiven = NOT_GIVEN,
         states: List[Literal["unanswered", "draft", "published", "published_with_draft"]] | NotGiven = NOT_GIVEN,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
@@ -199,6 +202,7 @@ def list(
                 timeout=timeout,
                 query=maybe_transform(
                     {
+                        "eval_issue_types": eval_issue_types,
                         "limit": limit,
                         "offset": offset,
                         "order": order,
diff --git a/src/codex/types/projects/cluster_list_params.py b/src/codex/types/projects/cluster_list_params.py
index b272d806..d1d818e3 100644
--- a/src/codex/types/projects/cluster_list_params.py
+++ b/src/codex/types/projects/cluster_list_params.py
@@ -9,12 +9,14 @@
 
 
 class ClusterListParams(TypedDict, total=False):
+    eval_issue_types: List[Literal["hallucination", "search_failure", "unhelpful"]]
+
     limit: int
 
     offset: int
 
     order: Literal["asc", "desc"]
 
-    sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank"]]
+    sort: Optional[Literal["created_at", "answered_at", "cluster_frequency_count", "custom_rank", "eval_score"]]
 
     states: List[Literal["unanswered", "draft", "published", "published_with_draft"]]
diff --git a/src/codex/types/projects/cluster_list_response.py b/src/codex/types/projects/cluster_list_response.py
index 33bc18a7..c149fbdb 100644
--- a/src/codex/types/projects/cluster_list_response.py
+++ b/src/codex/types/projects/cluster_list_response.py
@@ -140,6 +140,10 @@ class ClusterListResponse(BaseModel):
 
     draft_answer_last_edited: Optional[datetime] = None
 
+    eval_issue_type: Optional[str] = None
+
+    eval_score: Optional[float] = None
+
     frequency_count: Optional[int] = None
     """number of times the entry matched for a /query request"""
 
diff --git a/src/codex/types/projects/entry.py b/src/codex/types/projects/entry.py
index 24d57c89..638fe352 100644
--- a/src/codex/types/projects/entry.py
+++ b/src/codex/types/projects/entry.py
@@ -138,5 +138,9 @@ class Entry(BaseModel):
 
     draft_answer_last_edited: Optional[datetime] = None
 
+    eval_issue_type: Optional[str] = None
+
+    eval_score: Optional[float] = None
+
     frequency_count: Optional[int] = None
     """number of times the entry matched for a /query request"""
diff --git a/tests/api_resources/projects/test_clusters.py b/tests/api_resources/projects/test_clusters.py
index 5a464970..53706c6c 100644
--- a/tests/api_resources/projects/test_clusters.py
+++ b/tests/api_resources/projects/test_clusters.py
@@ -31,6 +31,7 @@ def test_method_list(self, client: Codex) -> None:
     def test_method_list_with_all_params(self, client: Codex) -> None:
         cluster = client.projects.clusters.list(
             project_id="182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
+            eval_issue_types=["hallucination"],
             limit=1,
             offset=0,
             order="asc",
@@ -144,6 +145,7 @@ async def test_method_list(self, async_client: AsyncCodex) -> None:
     async def test_method_list_with_all_params(self, async_client: AsyncCodex) -> None:
         cluster = await async_client.projects.clusters.list(
             project_id="182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
+            eval_issue_types=["hallucination"],
             limit=1,
             offset=0,
             order="asc",
diff --git a/tests/conftest.py b/tests/conftest.py
index 8823ef7a..c93053b1 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -10,7 +10,7 @@
 from codex import Codex, AsyncCodex
 
 if TYPE_CHECKING:
-    from _pytest.fixtures import FixtureRequest
+    from _pytest.fixtures import FixtureRequest  # pyright: ignore[reportPrivateImportUsage]
 
 pytest.register_assert_rewrite("tests.utils")
 
diff --git a/tests/test_models.py b/tests/test_models.py
index 73e6d67c..fb9d99b1 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -832,7 +832,7 @@ class B(BaseModel):
 
 @pytest.mark.skipif(not PYDANTIC_V2, reason="TypeAliasType is not supported in Pydantic v1")
 def test_type_alias_type() -> None:
-    Alias = TypeAliasType("Alias", str)
+    Alias = TypeAliasType("Alias", str)  # pyright: ignore
 
     class Model(BaseModel):
         alias: Alias