release: 0.94.0

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.93.0"
+  ".": "0.94.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 72
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-d87d3ef6f636c667a0256be82cebef0699d17403d409c26ec15813683cfc3263.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-dfe504526eed07979685a729ac9afd45e59cc2879291714b9f4674f2ef1247c7.yml
 openapi_spec_hash: d849fdf2c4dd6631a60c4340e9bc1322
-config_hash: 062be10c6bf39b6719b3a5ea2bf758b3
+config_hash: 831f90480c5b2b863b726e89eabaa90c

CHANGELOG.md

@@ -1,5 +1,24 @@
 # Changelog
 
+## 0.94.0 (2026-04-10)
+
+Full Changelog: [v0.93.0...v0.94.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.93.0...v0.94.0)
+
+### Features
+
+* vertex eu region ([#1658](https://github.com/anthropics/anthropic-sdk-python/issues/1658)) ([b7e157d](https://github.com/anthropics/anthropic-sdk-python/commit/b7e157d85f50b2900ddf896e8e80882dd7311bfd))
+
+
+### Bug Fixes
+
+* ensure file data are only sent as 1 parameter ([837b25b](https://github.com/anthropics/anthropic-sdk-python/commit/837b25bb6262186a5bae92aa70eb73c3cf8c90af))
+
+
+### Documentation
+
+* improve examples ([48089fd](https://github.com/anthropics/anthropic-sdk-python/commit/48089fdb788500d00718b9d4ae24cd34e5e91beb))
+* update examples ([0f3c28b](https://github.com/anthropics/anthropic-sdk-python/commit/0f3c28b973026d135f91f38c4ad82ae2b1131522))
+
 ## 0.93.0 (2026-04-09)
 
 Full Changelog: [v0.92.0...v0.93.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.92.0...v0.93.0)

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "anthropic"
-version = "0.93.0"
+version = "0.94.0"
 description = "The official Python library for the anthropic API"
 dynamic = ["readme"]
 license = "MIT"

src/anthropic/_utils/_utils.py

@@ -86,8 +86,9 @@ def _extract_items(
     index += 1
     if is_dict(obj):
         try:
-            # We are at the last entry in the path so we must remove the field
-            if (len(path)) == index:
+            # Remove the field if there are no more dict keys in the path,
+            # only "<array>" traversal markers or end.
+            if all(p == "<array>" for p in path[index:]):
                 item = obj.pop(key)
             else:
                 item = obj[key]

src/anthropic/_version.py

@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "anthropic"
-__version__ = "0.93.0"  # x-release-please-version
+__version__ = "0.94.0"  # x-release-please-version

src/anthropic/lib/vertex/_client.py

@@ -121,6 +121,8 @@ def __init__(
                     base_url = "https://aiplatform.googleapis.com/v1"
                 elif region == "us":
                     base_url = "https://aiplatform.us.rep.googleapis.com/v1"
+                elif region == "eu":
+                    base_url = "https://aiplatform.eu.rep.googleapis.com/v1"
                 else:
                     base_url = f"https://{region}-aiplatform.googleapis.com/v1"
 

tests/api_resources/beta/test_messages.py

@@ -392,11 +392,11 @@ def test_method_count_tokens(self, client: Anthropic) -> None:
         message = client.beta.messages.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         )
         assert_matches_type(BetaMessageTokensCount, message, path=["response"])
 
@@ -405,11 +405,11 @@ def test_method_count_tokens_with_all_params(self, client: Anthropic) -> None:
         message = client.beta.messages.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
             cache_control={
                 "type": "ephemeral",
                 "ttl": "5m",
@@ -516,11 +516,11 @@ def test_raw_response_count_tokens(self, client: Anthropic) -> None:
         response = client.beta.messages.with_raw_response.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         )
 
         assert response.is_closed is True
@@ -533,11 +533,11 @@ def test_streaming_response_count_tokens(self, client: Anthropic) -> None:
         with client.beta.messages.with_streaming_response.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         ) as response:
             assert not response.is_closed
             assert response.http_request.headers.get("X-Stainless-Lang") == "python"
@@ -941,11 +941,11 @@ async def test_method_count_tokens(self, async_client: AsyncAnthropic) -> None:
         message = await async_client.beta.messages.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         )
         assert_matches_type(BetaMessageTokensCount, message, path=["response"])
 
@@ -954,11 +954,11 @@ async def test_method_count_tokens_with_all_params(self, async_client: AsyncAnth
         message = await async_client.beta.messages.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
             cache_control={
                 "type": "ephemeral",
                 "ttl": "5m",
@@ -1065,11 +1065,11 @@ async def test_raw_response_count_tokens(self, async_client: AsyncAnthropic) ->
         response = await async_client.beta.messages.with_raw_response.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         )
 
         assert response.is_closed is True
@@ -1082,11 +1082,11 @@ async def test_streaming_response_count_tokens(self, async_client: AsyncAnthropi
         async with async_client.beta.messages.with_streaming_response.count_tokens(
             messages=[
                 {
-                    "content": "string",
+                    "content": "Hello, world",
                     "role": "user",
                 }
             ],
-            model="claude-mythos-preview",
+            model="claude-opus-4-6",
         ) as response:
             assert not response.is_closed
             assert response.http_request.headers.get("X-Stainless-Lang") == "python"

tests/api_resources/test_completions.py

@@ -21,7 +21,7 @@ class TestCompletions:
     def test_method_create_overload_1(self, client: Anthropic) -> None:
         completion = client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         )
         assert_matches_type(Completion, completion, path=["response"])
@@ -30,7 +30,7 @@ def test_method_create_overload_1(self, client: Anthropic) -> None:
     def test_method_create_with_all_params_overload_1(self, client: Anthropic) -> None:
         completion = client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             metadata={"user_id": "13803d75-b4b5-4c3e-b2a2-6f21399b021b"},
             stop_sequences=["string"],
@@ -46,7 +46,7 @@ def test_method_create_with_all_params_overload_1(self, client: Anthropic) -> No
     def test_raw_response_create_overload_1(self, client: Anthropic) -> None:
         response = client.completions.with_raw_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         )
 
@@ -59,7 +59,7 @@ def test_raw_response_create_overload_1(self, client: Anthropic) -> None:
     def test_streaming_response_create_overload_1(self, client: Anthropic) -> None:
         with client.completions.with_streaming_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         ) as response:
             assert not response.is_closed
@@ -74,7 +74,7 @@ def test_streaming_response_create_overload_1(self, client: Anthropic) -> None:
     def test_method_create_overload_2(self, client: Anthropic) -> None:
         completion_stream = client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         )
@@ -84,7 +84,7 @@ def test_method_create_overload_2(self, client: Anthropic) -> None:
     def test_method_create_with_all_params_overload_2(self, client: Anthropic) -> None:
         completion_stream = client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
             metadata={"user_id": "13803d75-b4b5-4c3e-b2a2-6f21399b021b"},
@@ -100,7 +100,7 @@ def test_method_create_with_all_params_overload_2(self, client: Anthropic) -> No
     def test_raw_response_create_overload_2(self, client: Anthropic) -> None:
         response = client.completions.with_raw_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         )
@@ -113,7 +113,7 @@ def test_raw_response_create_overload_2(self, client: Anthropic) -> None:
     def test_streaming_response_create_overload_2(self, client: Anthropic) -> None:
         with client.completions.with_streaming_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         ) as response:
@@ -135,7 +135,7 @@ class TestAsyncCompletions:
     async def test_method_create_overload_1(self, async_client: AsyncAnthropic) -> None:
         completion = await async_client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         )
         assert_matches_type(Completion, completion, path=["response"])
@@ -144,7 +144,7 @@ async def test_method_create_overload_1(self, async_client: AsyncAnthropic) -> N
     async def test_method_create_with_all_params_overload_1(self, async_client: AsyncAnthropic) -> None:
         completion = await async_client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             metadata={"user_id": "13803d75-b4b5-4c3e-b2a2-6f21399b021b"},
             stop_sequences=["string"],
@@ -160,7 +160,7 @@ async def test_method_create_with_all_params_overload_1(self, async_client: Asyn
     async def test_raw_response_create_overload_1(self, async_client: AsyncAnthropic) -> None:
         response = await async_client.completions.with_raw_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         )
 
@@ -173,7 +173,7 @@ async def test_raw_response_create_overload_1(self, async_client: AsyncAnthropic
     async def test_streaming_response_create_overload_1(self, async_client: AsyncAnthropic) -> None:
         async with async_client.completions.with_streaming_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
         ) as response:
             assert not response.is_closed
@@ -188,7 +188,7 @@ async def test_streaming_response_create_overload_1(self, async_client: AsyncAnt
     async def test_method_create_overload_2(self, async_client: AsyncAnthropic) -> None:
         completion_stream = await async_client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         )
@@ -198,7 +198,7 @@ async def test_method_create_overload_2(self, async_client: AsyncAnthropic) -> N
     async def test_method_create_with_all_params_overload_2(self, async_client: AsyncAnthropic) -> None:
         completion_stream = await async_client.completions.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
             metadata={"user_id": "13803d75-b4b5-4c3e-b2a2-6f21399b021b"},
@@ -214,7 +214,7 @@ async def test_method_create_with_all_params_overload_2(self, async_client: Asyn
     async def test_raw_response_create_overload_2(self, async_client: AsyncAnthropic) -> None:
         response = await async_client.completions.with_raw_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         )
@@ -227,7 +227,7 @@ async def test_raw_response_create_overload_2(self, async_client: AsyncAnthropic
     async def test_streaming_response_create_overload_2(self, async_client: AsyncAnthropic) -> None:
         async with async_client.completions.with_streaming_response.create(
             max_tokens_to_sample=256,
-            model="claude-mythos-preview",
+            model="claude-2.1",
             prompt="\n\nHuman: Hello, world!\n\nAssistant:",
             stream=True,
         ) as response: