diff --git a/Python/flask/poetry.lock b/Python/flask/poetry.lock
index 8fd33a8a..d82eacaf 100644
--- a/Python/flask/poetry.lock
+++ b/Python/flask/poetry.lock
@@ -24,13 +24,13 @@ trio = ["trio (>=0.23)"]
 
 [[package]]
 name = "autoblocksai"
-version = "0.0.27"
+version = "0.0.28"
 description = "Python client for Autoblocks"
 optional = false
 python-versions = ">=3.8.1,<4.0.0"
 files = [
-    {file = "autoblocksai-0.0.27-py3-none-any.whl", hash = "sha256:6fb8976d957503d9ff757c7f224f4fd27ef14b0a69e5456afaa4a513bd5523db"},
-    {file = "autoblocksai-0.0.27.tar.gz", hash = "sha256:d31fe964e5a5105d10913a30664a2b356073a7483addf1e23df3902683ddb78e"},
+    {file = "autoblocksai-0.0.28-py3-none-any.whl", hash = "sha256:93c4f91e4bdb3ca2bde1ef7b4b49f42bae9d60f32c679de8d1465fd9aa35ce20"},
+    {file = "autoblocksai-0.0.28.tar.gz", hash = "sha256:e711213b6aba28fdd7ed3846fa3dd91a3f6f880fc276ffacb427ec963ff4a2ac"},
 ]
 
 [package.dependencies]
@@ -496,4 +496,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "ee96dcc3e76fb49767e97c981123d4dc4a37925e8d1bd36fc59ba2c19e1f2326"
+content-hash = "bcbef04ea99a28471701558b729a0b85e5601d938733d80b6a1611490f69213a"
diff --git a/Python/flask/pyproject.toml b/Python/flask/pyproject.toml
index f0fc862c..b05523a4 100644
--- a/Python/flask/pyproject.toml
+++ b/Python/flask/pyproject.toml
@@ -9,6 +9,6 @@ packages = [{include = "myapp"}]
 
 [tool.poetry.dependencies]
 python = "^3.9"
-autoblocksai = "^0.0.27"
+autoblocksai = "^0.0.28"
 python-dotenv = "^1.0.0"
 flask = "^3.0.0"
diff --git a/Python/openai-tracing/poetry.lock b/Python/openai-tracing/poetry.lock
index 4354482e..3b871d10 100644
--- a/Python/openai-tracing/poetry.lock
+++ b/Python/openai-tracing/poetry.lock
@@ -34,13 +34,13 @@ trio = ["trio (<0.22)"]
 
 [[package]]
 name = "autoblocksai"
-version = "0.0.27"
+version = "0.0.28"
 description = "Python client for Autoblocks"
 optional = false
 python-versions = ">=3.8.1,<4.0.0"
 files = [
-    {file = "autoblocksai-0.0.27-py3-none-any.whl", hash = "sha256:6fb8976d957503d9ff757c7f224f4fd27ef14b0a69e5456afaa4a513bd5523db"},
-    {file = "autoblocksai-0.0.27.tar.gz", hash = "sha256:d31fe964e5a5105d10913a30664a2b356073a7483addf1e23df3902683ddb78e"},
+    {file = "autoblocksai-0.0.28-py3-none-any.whl", hash = "sha256:93c4f91e4bdb3ca2bde1ef7b4b49f42bae9d60f32c679de8d1465fd9aa35ce20"},
+    {file = "autoblocksai-0.0.28.tar.gz", hash = "sha256:e711213b6aba28fdd7ed3846fa3dd91a3f6f880fc276ffacb427ec963ff4a2ac"},
 ]
 
 [package.dependencies]
@@ -514,4 +514,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "0a97e417b197eb91893f251943db3db7d0bd7f603a7af1d2f7bb27f8ee567c91"
+content-hash = "fcea717d094b5355e1d425a856449210ed222851b367a79cc2a0d0478b2aae27"
diff --git a/Python/openai-tracing/pyproject.toml b/Python/openai-tracing/pyproject.toml
index b373e5a1..d072b558 100644
--- a/Python/openai-tracing/pyproject.toml
+++ b/Python/openai-tracing/pyproject.toml
@@ -10,7 +10,7 @@ packages = [{include = "src"}]
 [tool.poetry.dependencies]
 python = "^3.9"
 openai = "^1.0.0"
-autoblocksai = "^0.0.27"
+autoblocksai = "^0.0.28"
 python-dotenv = "^1.0.0"
 
 [tool.poetry.scripts]
diff --git a/Python/openai-tracing/src/main.py b/Python/openai-tracing/src/main.py
index d44f7824..d293e545 100644
--- a/Python/openai-tracing/src/main.py
+++ b/Python/openai-tracing/src/main.py
@@ -5,7 +5,6 @@
 
 import dotenv
 from autoblocks.tracer import AutoblocksTracer
-from autoblocks.vendor.openai import serialize_completion
 from openai import OpenAI
 
 dotenv.load_dotenv(".env")
@@ -47,7 +46,9 @@ def main():
             "ai.response",
             span_id=span_id,
             properties=dict(
-                response=serialize_completion(completion),
+                # OpenAI v1 returns pydantic models, which have a model_dump_json
+                # method for converting to JSON.
+                response=completion.model_dump_json(),
                 latency=(time.time() - start_time) * 1000,
             ),
         )
diff --git a/Python/prompt-sdk-headless/poetry.lock b/Python/prompt-sdk-headless/poetry.lock
index a1a447d2..2a0bb9f3 100644
--- a/Python/prompt-sdk-headless/poetry.lock
+++ b/Python/prompt-sdk-headless/poetry.lock
@@ -34,13 +34,13 @@ trio = ["trio (<0.22)"]
 
 [[package]]
 name = "autoblocksai"
-version = "0.0.27"
+version = "0.0.28"
 description = "Python client for Autoblocks"
 optional = false
 python-versions = ">=3.8.1,<4.0.0"
 files = [
-    {file = "autoblocksai-0.0.27-py3-none-any.whl", hash = "sha256:6fb8976d957503d9ff757c7f224f4fd27ef14b0a69e5456afaa4a513bd5523db"},
-    {file = "autoblocksai-0.0.27.tar.gz", hash = "sha256:d31fe964e5a5105d10913a30664a2b356073a7483addf1e23df3902683ddb78e"},
+    {file = "autoblocksai-0.0.28-py3-none-any.whl", hash = "sha256:93c4f91e4bdb3ca2bde1ef7b4b49f42bae9d60f32c679de8d1465fd9aa35ce20"},
+    {file = "autoblocksai-0.0.28.tar.gz", hash = "sha256:e711213b6aba28fdd7ed3846fa3dd91a3f6f880fc276ffacb427ec963ff4a2ac"},
 ]
 
 [package.dependencies]
@@ -487,4 +487,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "7e06d5e8cf459b9aac3de4633a4965ad945d25c3a002174cf1344078923133dd"
+content-hash = "4322123fce15622aa5a5b8e5a0a2cf5fd387bd67445861948c4d6a7e245e9f09"
diff --git a/Python/prompt-sdk-headless/pyproject.toml b/Python/prompt-sdk-headless/pyproject.toml
index 1e732613..12e80758 100644
--- a/Python/prompt-sdk-headless/pyproject.toml
+++ b/Python/prompt-sdk-headless/pyproject.toml
@@ -10,7 +10,7 @@ packages = [{include = "src"}]
 [tool.poetry.dependencies]
 python = "^3.9"
 openai = "^1.0.0"
-autoblocksai = "0.0.27"
+autoblocksai = "0.0.28"
 python-dotenv = "^1.0.0"
 pydantic = "^2.5.3"
 
diff --git a/Python/prompt-sdk-headless/src/main.py b/Python/prompt-sdk-headless/src/main.py
index 8174a089..a15ac056 100644
--- a/Python/prompt-sdk-headless/src/main.py
+++ b/Python/prompt-sdk-headless/src/main.py
@@ -2,7 +2,6 @@
 
 import dotenv
 from autoblocks.tracer import AutoblocksTracer
-from autoblocks.vendor.openai import serialize_completion
 from openai import OpenAI
 
 from src.prompts import TextSummarizationMinorVersion
@@ -56,7 +55,9 @@ def main():
         tracer.send_event(
             "ai.response",
             properties=dict(
-                response=serialize_completion(response),
+                # OpenAI v1 returns pydantic models, which have a model_dump_json
+                # method for converting to JSON.
+                response=response.model_dump_json(),
                 promptTracking=prompt.track(),
             ),
         )