diff --git a/.changeset/code-interpreter-python-extra-mime.md b/.changeset/code-interpreter-python-extra-mime.md
new file mode 100644
index 0000000000..8c7f2c7b79
--- /dev/null
+++ b/.changeset/code-interpreter-python-extra-mime.md
@@ -0,0 +1,5 @@
+---
+'@e2b/code-interpreter-python': patch
+---
+
+fix(code-interpreter): collect non-standard MIME types into `Result.extra` in the Python SDK — `Result.__init__` declared an `extra` field for data "not part of the standard types", but unknown keys from the kernel message were dropped via `**kwargs` instead of collected, so non-standard representations (e.g. `application/vnd.plotly.v1+json`, bokeh, vega-lite) were silently lost. They are now swept into `extra`, listed by `formats()`, and preserved by `Execution.to_json()`, matching the JS SDK's `Result` constructor. `serialize_results` reads extra keys from `Result.extra` rather than treating them as attributes.
diff --git a/packages/code-interpreter-python/e2b_code_interpreter/models.py b/packages/code-interpreter-python/e2b_code_interpreter/models.py
index bb0a7751ed..3ff555b83f 100644
--- a/packages/code-interpreter-python/e2b_code_interpreter/models.py
+++ b/packages/code-interpreter-python/e2b_code_interpreter/models.py
@@ -167,7 +167,14 @@ def __init__(
                     f"Error deserializing chart, check if you are using the latest version of the library: {e}"
                 )
         self.is_main_result = is_main_result
-        self.extra = extra
+        # Collect non-standard MIME types (e.g. application/vnd.plotly.v1+json)
+        # into `extra`, matching the JS SDK's Result constructor, which sweeps
+        # every key outside its known set into `extra`. Without this the
+        # kernel's non-standard representations are silently dropped.
+        if kwargs:
+            self.extra = {**(extra or {}), **kwargs}
+        else:
+            self.extra = extra
 
     def formats(self) -> Iterable[str]:
         """
@@ -337,6 +344,8 @@ def serialize_results(results: List[Result]) -> List[Dict[str, str]]:
                 chart = result.chart
                 if chart is not None:
                     serialized_dict[key] = chart.to_dict()
+            elif result.extra is not None and key in result.extra:
+                serialized_dict[key] = result.extra[key]
             else:
                 serialized_dict[key] = result[key]
 
diff --git a/packages/code-interpreter-python/tests/test_result_extra.py b/packages/code-interpreter-python/tests/test_result_extra.py
new file mode 100644
index 0000000000..aca8f39ca3
--- /dev/null
+++ b/packages/code-interpreter-python/tests/test_result_extra.py
@@ -0,0 +1,74 @@
+import json
+
+from e2b_code_interpreter.models import Execution, Result, parse_output
+
+
+def _result_from(message: dict) -> Result:
+    execution = Execution()
+    parse_output(
+        execution, json.dumps({"type": "result", "is_main_result": True, **message})
+    )
+    return execution.results[0]
+
+
+def test_collects_non_standard_mime_types_into_extra():
+    # The IPython kernel sends non-standard MIME types (e.g. plotly/bokeh) that
+    # aren't among the known representations. They should land in `extra`, like
+    # the JS SDK's Result constructor does — not be silently dropped.
+    result = _result_from(
+        {"text": "hello", "application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]}}
+    )
+
+    assert result.extra == {"application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]}}
+
+
+def test_formats_lists_non_standard_mime_types():
+    result = _result_from(
+        {"text": "hello", "application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]}}
+    )
+
+    assert "application/vnd.plotly.v1+json" in list(result.formats())
+
+
+def test_to_json_preserves_non_standard_mime_types():
+    execution = Execution()
+    parse_output(
+        execution,
+        json.dumps(
+            {
+                "type": "result",
+                "is_main_result": True,
+                "text": "hello",
+                "application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]},
+            }
+        ),
+    )
+
+    assert json.loads(execution.to_json())["results"] == [
+        {
+            "text": "hello",
+            "application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]},
+        }
+    ]
+
+
+def test_result_without_extra_fields_has_no_extra():
+    result = _result_from({"text": "hello"})
+
+    assert result.extra is None
+    assert list(result.formats()) == ["text"]
+
+
+def test_explicit_extra_and_unknown_kwargs_are_merged():
+    # A non-standard MIME type arriving via the parsed message and an explicit
+    # `extra` passed to the constructor should both be retained.
+    result = Result(
+        text="hello",
+        extra={"application/vnd.custom+json": {"y": 2}},
+        **{"application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]}},
+    )
+
+    assert result.extra == {
+        "application/vnd.custom+json": {"y": 2},
+        "application/vnd.plotly.v1+json": {"data": [{"x": [1, 2]}]},
+    }