diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/anthropic.md b/daprdocs/content/en/reference/components-reference/supported-conversation/anthropic.md
index 334b7cb9966..c31a2bffa19 100644
--- a/daprdocs/content/en/reference/components-reference/supported-conversation/anthropic.md
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/anthropic.md
@@ -20,7 +20,7 @@ spec:
   - name: key
     value: "mykey"
   - name: model
-    value: claude-3-5-sonnet-20240620
+  value: 'claude-sonnet-4-20250514'
   - name: cacheTTL
     value: 10m
 ```
@@ -34,9 +34,9 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | Field              | Required | Details | Example |
 |--------------------|:--------:|---------|---------|
 | `key`   | Y | API key for Anthropic. | `"mykey"` |
-| `model` | N | The Anthropic LLM to use. Defaults to `claude-3-5-sonnet-20240620`  | `claude-3-5-sonnet-20240620` |
+| `model` | N | The Anthropic LLM to use. Defaults to `claude-sonnet-4-20250514` (configurable via the `ANTHROPIC_MODEL` environment variable).  | `claude-sonnet-4-20250514` |
 | `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
 
 ## Related links
 
-- [Conversation API overview]({{< ref conversation-overview.md >}})
\ No newline at end of file
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/googleai.md b/daprdocs/content/en/reference/components-reference/supported-conversation/googleai.md
new file mode 100644
index 00000000000..a54b1822a82
--- /dev/null
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/googleai.md
@@ -0,0 +1,42 @@
+---
+type: docs
+title: "GoogleAI"
+linkTitle: "GoogleAI"
+description: Detailed information on the GoogleAI conversation component
+---
+
+## Component format
+
+A Dapr `conversation.yaml` component file has the following structure:
+
+```yaml
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: googleai
+spec:
+  type: conversation.googleai
+  metadata:
+  - name: key
+    value: "mykey"
+  - name: model
+    value: 'gemini-2.5-flash-lite'
+  - name: cacheTTL
+    value: 10m
+```
+
+{{% alert title="Warning" color="warning" %}}
+The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets, as described [here]({{< ref component-secrets.md >}}).
+{{% /alert %}}
+
+## Spec metadata fields
+
+| Field              | Required | Details | Example |
+|--------------------|:--------:|---------|---------|
+| `key`   | Y | API key for GoogleAI. | `"mykey"` |
+| `model` | N | The GoogleAI LLM to use. Defaults to `gemini-2.5-flash-lite` (configurable via the `GOOGLEAI_MODEL` environment variable).  | `gemini-2.5-flash-lite` |
+| `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
+
+## Related links
+
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/hugging-face.md b/daprdocs/content/en/reference/components-reference/supported-conversation/hugging-face.md
index 6429c84e87d..ca0212f31a5 100644
--- a/daprdocs/content/en/reference/components-reference/supported-conversation/hugging-face.md
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/hugging-face.md
@@ -20,7 +20,7 @@ spec:
   - name: key
     value: mykey
   - name: model
-    value: meta-llama/Meta-Llama-3-8B
+  value: 'deepseek-ai/DeepSeek-R1-Distill-Qwen-32B'
   - name: cacheTTL
     value: 10m
 ```
@@ -34,9 +34,9 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | Field              | Required | Details | Example |
 |--------------------|:--------:|---------|---------|
 | `key`   | Y | API key for Huggingface. | `mykey` |
-| `model` | N | The Huggingface LLM to use. Defaults to `meta-llama/Meta-Llama-3-8B`.  | `meta-llama/Meta-Llama-3-8B` |
+| `model` | N | The Huggingface LLM to use. Defaults to `deepseek-ai/DeepSeek-R1-Distill-Qwen-32B` (configurable via the `HUGGINGFACE_MODEL` environment variable).  | `deepseek-ai/DeepSeek-R1-Distill-Qwen-32B` |
 | `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
 
 ## Related links
 
-- [Conversation API overview]({{< ref conversation-overview.md >}})
\ No newline at end of file
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/mistral.md b/daprdocs/content/en/reference/components-reference/supported-conversation/mistral.md
index 57504e56b3f..fca964c4d68 100644
--- a/daprdocs/content/en/reference/components-reference/supported-conversation/mistral.md
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/mistral.md
@@ -20,7 +20,7 @@ spec:
   - name: key
     value: mykey
   - name: model
-    value: open-mistral-7b
+  value: 'open-mistral-7b'
   - name: cacheTTL
     value: 10m
 ```
@@ -34,9 +34,9 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | Field              | Required | Details | Example |
 |--------------------|:--------:|---------|---------|
 | `key`   | Y | API key for Mistral. | `mykey` |
-| `model` | N | The Mistral LLM to use. Defaults to `open-mistral-7b`.  | `open-mistral-7b` |
+| `model` | N | The Mistral LLM to use. Defaults to `open-mistral-7b` (configurable via the `MISTRAL_MODEL` environment variable).  | `open-mistral-7b` |
 | `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
 
 ## Related links
 
-- [Conversation API overview]({{< ref conversation-overview.md >}})
\ No newline at end of file
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/ollama.md b/daprdocs/content/en/reference/components-reference/supported-conversation/ollama.md
new file mode 100644
index 00000000000..c58a04b3c24
--- /dev/null
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/ollama.md
@@ -0,0 +1,39 @@
+---
+type: docs
+title: "Ollama"
+linkTitle: "Ollama"
+description: Detailed information on the Ollama conversation component
+---
+
+## Component format
+
+A Dapr `conversation.yaml` component file has the following structure:
+
+```yaml
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: ollama
+spec:
+  type: conversation.ollama
+  metadata:
+  - name: model
+    value: 'llama3.2:latest'
+  - name: cacheTTL
+    value: 10m
+```
+
+{{% alert title="Warning" color="warning" %}}
+The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets, as described [here]({{< ref component-secrets.md >}}).
+{{% /alert %}}
+
+## Spec metadata fields
+
+| Field              | Required | Details | Example |
+|--------------------|:--------:|---------|---------|
+| `model` | N | The Ollama LLM to use. Defaults to `llama3.2:latest` (configurable via the `OLLAMA_MODEL` environment variable).  | `llama3.2:latest` |
+| `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
+
+## Related links
+
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/components-reference/supported-conversation/openai.md b/daprdocs/content/en/reference/components-reference/supported-conversation/openai.md
index 7148685b1bb..a9eeefb76f2 100644
--- a/daprdocs/content/en/reference/components-reference/supported-conversation/openai.md
+++ b/daprdocs/content/en/reference/components-reference/supported-conversation/openai.md
@@ -20,7 +20,7 @@ spec:
   - name: key
     value: mykey
   - name: model
-    value: gpt-4-turbo
+    value: 'gpt-5-nano'
   - name: cacheTTL
     value: 10m
 ```
@@ -34,9 +34,33 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | Field              | Required | Details | Example |
 |--------------------|:--------:|---------|---------|
 | `key`   | Y | API key for OpenAI. | `mykey` |
-| `model` | N | The OpenAI LLM to use. Defaults to `gpt-4-turbo`.  | `gpt-4-turbo` |
+| `model` | N | The OpenAI LLM to use. Defaults to `gpt-5-nano` (configurable via the `OPENAI_MODEL` environment variable).  | `gpt-5-nano` |
 | `cacheTTL` | N | A time-to-live value for a prompt cache to expire. Uses Golang duration format.  | `10m` |
 
+## Azure OpenAI usage
+
+The `conversation.openai` component can target either OpenAI's hosted API or Azure OpenAI. To select Azure OpenAI, set the component's `apiType` metadata to `azure` and provide the usual Azure-specific connection settings (for example, endpoint/region and API key) in the component configuration.
+
+When `apiType: azure` is used, the environment variable `OPENAI_MODEL` may be set to provide a default Azure model identifier to use if the component's `model` metadata is not provided. In addition, the corresponding `endpoint` and `apiVersion` fields will be set to Azure specific settings.
+
+Example (Azure OpenAI configuration):
+
+```yaml
+spec:
+  type: conversation.openai
+  metadata:
+  - name: apiType
+    value: azure
+  - name: key
+    value: "<your-azure-openai-key>"
+  - name: endpoint
+    value: "https://<your-resource-name>.openai.azure.com/"
+  - name: model
+    value: 'gpt-4.1-nano'
+```
+
+If `model` is omitted from the component metadata and the model environment variable is not set, then the component falls back to its built-in default model.
+
 ## Related links
 
-- [Conversation API overview]({{< ref conversation-overview.md >}})
\ No newline at end of file
+- [Conversation API overview]({{< ref conversation-overview.md >}})
diff --git a/daprdocs/content/en/reference/environment/_index.md b/daprdocs/content/en/reference/environment/_index.md
index d5ed2d529c1..8fa2731546b 100644
--- a/daprdocs/content/en/reference/environment/_index.md
+++ b/daprdocs/content/en/reference/environment/_index.md
@@ -21,7 +21,7 @@ The following table lists the environment variables used by the Dapr runtime, CL
 | SSL_CERT_DIR | Dapr sidecar | Specifies the location where the public certificates for all the trusted certificate authorities (CA) are located. Not applicable when the sidecar is running as a process in self-hosted mode.|
 | DAPR_HELM_REPO_URL | Your private Dapr Helm chart url  | Specifies a private Dapr Helm chart url, which defaults to the official Helm chart URL: `https://dapr.github.io/helm-charts`|
 | DAPR_HELM_REPO_USERNAME | A username for a private Helm chart | The username required to access the private Dapr Helm chart. If it can be accessed publicly, this env variable does not need to be set|
-| DAPR_HELM_REPO_PASSWORD | A password for a private Helm chart  |The password required to access the private Dapr helm chart. If it can be accessed publicly, this env variable does not need to be set| 
+| DAPR_HELM_REPO_PASSWORD | A password for a private Helm chart  |The password required to access the private Dapr helm chart. If it can be accessed publicly, this env variable does not need to be set|
 | OTEL_EXPORTER_OTLP_ENDPOINT | OpenTelemetry Tracing | Sets the Open Telemetry (OTEL) server address, turns on tracing. (Example: `http://localhost:4318`) |
 | OTEL_EXPORTER_OTLP_INSECURE | OpenTelemetry Tracing | Sets the connection to the endpoint as unencrypted. (`true`, `false`) |
 | OTEL_EXPORTER_OTLP_PROTOCOL | OpenTelemetry Tracing | The OTLP protocol to use Transport protocol. (`grpc`, `http/protobuf`, `http/json`) |
@@ -29,4 +29,11 @@ The following table lists the environment variables used by the Dapr runtime, CL
 | DAPR_COMPONENTS_SOCKETS_EXTENSION | .NET and Java pluggable component SDKs | A per-SDK configuration that indicates the default file extension applied to socket files created by the SDKs. Not a Dapr-enforced behavior. |
 | DAPR_PLACEMENT_METADATA_ENABLED | Dapr placement | Enable an endpoint for the Placement service that exposes placement table information on actor usage. Set to `true` to enable in self-hosted mode. [Learn more about the Placement API]({{< ref placement_api.md >}}) |
 | DAPR_HOST_IP | Dapr sidecar | The host's chosen IP address. If not specified, will loop over the network interfaces and select the first non-loopback address it finds.|
-| DAPR_HEALTH_TIMEOUT | SDKs | Sets the time on the "wait for sidecar" availability. Overrides the default timeout setting of 60 seconds. |
\ No newline at end of file
+| DAPR_HEALTH_TIMEOUT | SDKs | Sets the time on the "wait for sidecar" availability. Overrides the default timeout setting of 60 seconds. |
+| OPENAI_MODEL | Conversation components | Default model name used by the `conversation.openai` component at runtime when no `model` metadata is set in the component file. Default: `gpt-5-nano`. |
+| ANTHROPIC_MODEL | Conversation components | Default model name used by the `conversation.anthropic` component when no `model` metadata is set in the component file. Default: `claude-sonnet-4-20250514`. |
+| GOOGLEAI_MODEL | Conversation components | Default model name used by the `conversation.googleai` component when no `model` metadata is set in the component file. Default: `gemini-2.5-flash-lite`. |
+| MISTRAL_MODEL | Conversation components | Default model name used by the `conversation.mistral` component when no `model` metadata is set in the component file. Default: `open-mistral-7b`. |
+| HUGGINGFACE_MODEL | Conversation components | Default model name used by the `conversation.huggingface` component when no `model` metadata is set in the component file. Default: `deepseek-ai/DeepSeek-R1-Distill-Qwen-32B`. |
+| OLLAMA_MODEL | Conversation components | Default model name used by the `conversation.ollama` component when no `model` metadata is set in the component file. Default: `llama3.2:latest`. |
+ 
\ No newline at end of file