diff --git a/codex-rs/core/src/client.rs b/codex-rs/core/src/client.rs
index 04817670..48e42ee0 100644
--- a/codex-rs/core/src/client.rs
+++ b/codex-rs/core/src/client.rs
@@ -157,14 +157,6 @@ impl ModelClient {
 
         let auth_manager = self.auth_manager.clone();
 
-        let auth_mode = auth_manager
-            .as_ref()
-            .and_then(|m| m.auth())
-            .as_ref()
-            .map(|a| a.mode);
-
-        let store = prompt.store && auth_mode != Some(AuthMode::ChatGPT);
-
         let full_instructions = prompt.get_full_instructions(&self.config.model_family);
         let tools_json = create_tools_json_for_responses_api(&prompt.tools)?;
         let reasoning = create_reasoning_param_for_request(
@@ -173,9 +165,7 @@ impl ModelClient {
             self.summary,
         );
 
-        // Request encrypted COT if we are not storing responses,
-        // otherwise reasoning items will be referenced by ID
-        let include: Vec<String> = if !store && reasoning.is_some() {
+        let include: Vec<String> = if reasoning.is_some() {
             vec!["reasoning.encrypted_content".to_string()]
         } else {
             vec![]
@@ -204,7 +194,7 @@ impl ModelClient {
             tool_choice: "auto",
             parallel_tool_calls: false,
             reasoning,
-            store,
+            store: false,
             stream: true,
             include,
             prompt_cache_key: Some(self.session_id.to_string()),
diff --git a/codex-rs/core/src/client_common.rs b/codex-rs/core/src/client_common.rs
index d561d369..2f849239 100644
--- a/codex-rs/core/src/client_common.rs
+++ b/codex-rs/core/src/client_common.rs
@@ -25,9 +25,6 @@ pub struct Prompt {
     /// Conversation context input items.
     pub input: Vec<ResponseItem>,
 
-    /// Whether to store response on server side (disable_response_storage = !store).
-    pub store: bool,
-
     /// Tools available to the model, including additional tools sourced from
     /// external MCP servers.
     pub(crate) tools: Vec<OpenAiTool>,
@@ -128,7 +125,6 @@ pub(crate) struct ResponsesApiRequest<'a> {
     pub(crate) tool_choice: &'static str,
     pub(crate) parallel_tool_calls: bool,
     pub(crate) reasoning: Option<Reasoning>,
-    /// true when using the Responses API.
     pub(crate) store: bool,
     pub(crate) stream: bool,
     pub(crate) include: Vec<String>,
@@ -199,7 +195,7 @@ mod tests {
             tool_choice: "auto",
             parallel_tool_calls: false,
             reasoning: None,
-            store: true,
+            store: false,
             stream: true,
             include: vec![],
             prompt_cache_key: None,
@@ -229,7 +225,7 @@ mod tests {
             tool_choice: "auto",
             parallel_tool_calls: false,
             reasoning: None,
-            store: true,
+            store: false,
             stream: true,
             include: vec![],
             prompt_cache_key: None,
diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index 2028c424..172d4e0f 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -184,7 +184,6 @@ impl Codex {
             base_instructions: config.base_instructions.clone(),
             approval_policy: config.approval_policy,
             sandbox_policy: config.sandbox_policy.clone(),
-            disable_response_storage: config.disable_response_storage,
             notify: config.notify.clone(),
             cwd: config.cwd.clone(),
         };
@@ -301,7 +300,6 @@ pub(crate) struct TurnContext {
     pub(crate) approval_policy: AskForApproval,
     pub(crate) sandbox_policy: SandboxPolicy,
     pub(crate) shell_environment_policy: ShellEnvironmentPolicy,
-    pub(crate) disable_response_storage: bool,
     pub(crate) tools_config: ToolsConfig,
 }
 
@@ -334,8 +332,6 @@ struct ConfigureSession {
     approval_policy: AskForApproval,
     /// How to sandbox commands executed in the system
     sandbox_policy: SandboxPolicy,
-    /// Disable server-side response storage (send full context each request)
-    disable_response_storage: bool,
 
     /// Optional external notifier command tokens. Present only when the
     /// client wants the agent to spawn a program after each completed
@@ -370,7 +366,6 @@ impl Session {
             base_instructions,
             approval_policy,
             sandbox_policy,
-            disable_response_storage,
             notify,
             cwd,
         } = configure_session;
@@ -462,7 +457,6 @@ impl Session {
             sandbox_policy,
             shell_environment_policy: config.shell_environment_policy.clone(),
             cwd,
-            disable_response_storage,
         };
         let sess = Arc::new(Session {
             session_id,
@@ -1117,7 +1111,6 @@ async fn submission_loop(
                     sandbox_policy: new_sandbox_policy.clone(),
                     shell_environment_policy: prev.shell_environment_policy.clone(),
                     cwd: new_cwd.clone(),
-                    disable_response_storage: prev.disable_response_storage,
                 };
 
                 // Install the new persistent context for subsequent tasks/turns.
@@ -1199,7 +1192,6 @@ async fn submission_loop(
                         sandbox_policy,
                         shell_environment_policy: turn_context.shell_environment_policy.clone(),
                         cwd,
-                        disable_response_storage: turn_context.disable_response_storage,
                     };
                     // TODO: record the new environment context in the conversation history
                     // no current task, spawn a new one with the per‑turn context
@@ -1604,7 +1596,6 @@ async fn run_turn(
 
     let prompt = Prompt {
         input,
-        store: !turn_context.disable_response_storage,
         tools,
         base_instructions_override: turn_context.base_instructions.clone(),
     };
@@ -1858,7 +1849,6 @@ async fn run_compact_task(
 
     let prompt = Prompt {
         input: turn_input,
-        store: !turn_context.disable_response_storage,
         tools: Vec::new(),
         base_instructions_override: Some(compact_instructions.clone()),
     };
diff --git a/codex-rs/core/src/config.rs b/codex-rs/core/src/config.rs
index e022ba01..7fb4a0dd 100644
--- a/codex-rs/core/src/config.rs
+++ b/codex-rs/core/src/config.rs
@@ -78,11 +78,6 @@ pub struct Config {
     /// Defaults to `false`.
     pub show_raw_agent_reasoning: bool,
 
-    /// Disable server-side response storage (sends the full conversation
-    /// context with every request). Currently necessary for OpenAI customers
-    /// who have opted into Zero Data Retention (ZDR).
-    pub disable_response_storage: bool,
-
     /// User-provided instructions from AGENTS.md.
     pub user_instructions: Option<String>,
 
@@ -417,11 +412,6 @@ pub struct ConfigToml {
     /// Sandbox configuration to apply if `sandbox` is `WorkspaceWrite`.
     pub sandbox_workspace_write: Option<SandboxWorkspaceWrite>,
 
-    /// Disable server-side response storage (sends the full conversation
-    /// context with every request). Currently necessary for OpenAI customers
-    /// who have opted into Zero Data Retention (ZDR).
-    pub disable_response_storage: Option<bool>,
-
     /// Optional external command to spawn for end-user notifications.
     #[serde(default)]
     pub notify: Option<Vec<String>>,
@@ -640,7 +630,6 @@ pub struct ConfigOverrides {
     pub include_plan_tool: Option<bool>,
     pub include_apply_patch_tool: Option<bool>,
     pub include_view_image_tool: Option<bool>,
-    pub disable_response_storage: Option<bool>,
     pub show_raw_agent_reasoning: Option<bool>,
     pub tools_web_search_request: Option<bool>,
 }
@@ -668,7 +657,6 @@ impl Config {
             include_plan_tool,
             include_apply_patch_tool,
             include_view_image_tool,
-            disable_response_storage,
             show_raw_agent_reasoning,
             tools_web_search_request: override_tools_web_search_request,
         } = overrides;
@@ -802,11 +790,6 @@ impl Config {
                 .unwrap_or_else(AskForApproval::default),
             sandbox_policy,
             shell_environment_policy,
-            disable_response_storage: config_profile
-                .disable_response_storage
-                .or(cfg.disable_response_storage)
-                .or(disable_response_storage)
-                .unwrap_or(false),
             notify: cfg.notify,
             user_instructions,
             base_instructions,
@@ -1071,7 +1054,6 @@ exclude_slash_tmp = true
         let toml = r#"
 model = "o3"
 approval_policy = "untrusted"
-disable_response_storage = false
 
 # Can be used to determine which profile to use if not specified by
 # `ConfigOverrides`.
@@ -1101,7 +1083,6 @@ model_provider = "openai-chat-completions"
 model = "o3"
 model_provider = "openai"
 approval_policy = "on-failure"
-disable_response_storage = true
 
 [profiles.gpt5]
 model = "gpt-5"
@@ -1199,7 +1180,6 @@ model_verbosity = "high"
                 approval_policy: AskForApproval::Never,
                 sandbox_policy: SandboxPolicy::new_read_only_policy(),
                 shell_environment_policy: ShellEnvironmentPolicy::default(),
-                disable_response_storage: false,
                 user_instructions: None,
                 notify: None,
                 cwd: fixture.cwd(),
@@ -1257,7 +1237,6 @@ model_verbosity = "high"
             approval_policy: AskForApproval::UnlessTrusted,
             sandbox_policy: SandboxPolicy::new_read_only_policy(),
             shell_environment_policy: ShellEnvironmentPolicy::default(),
-            disable_response_storage: false,
             user_instructions: None,
             notify: None,
             cwd: fixture.cwd(),
@@ -1330,7 +1309,6 @@ model_verbosity = "high"
             approval_policy: AskForApproval::OnFailure,
             sandbox_policy: SandboxPolicy::new_read_only_policy(),
             shell_environment_policy: ShellEnvironmentPolicy::default(),
-            disable_response_storage: true,
             user_instructions: None,
             notify: None,
             cwd: fixture.cwd(),
@@ -1389,7 +1367,6 @@ model_verbosity = "high"
             approval_policy: AskForApproval::OnFailure,
             sandbox_policy: SandboxPolicy::new_read_only_policy(),
             shell_environment_policy: ShellEnvironmentPolicy::default(),
-            disable_response_storage: false,
             user_instructions: None,
             notify: None,
             cwd: fixture.cwd(),
diff --git a/codex-rs/core/src/config_profile.rs b/codex-rs/core/src/config_profile.rs
index d6ab03f6..b98f78d3 100644
--- a/codex-rs/core/src/config_profile.rs
+++ b/codex-rs/core/src/config_profile.rs
@@ -15,7 +15,6 @@ pub struct ConfigProfile {
     /// [`ModelProviderInfo`] to use.
     pub model_provider: Option<String>,
     pub approval_policy: Option<AskForApproval>,
-    pub disable_response_storage: Option<bool>,
     pub model_reasoning_effort: Option<ReasoningEffort>,
     pub model_reasoning_summary: Option<ReasoningSummary>,
     pub model_verbosity: Option<Verbosity>,
@@ -29,7 +28,6 @@ impl From<ConfigProfile> for codex_protocol::mcp_protocol::Profile {
             model: config_profile.model,
             model_provider: config_profile.model_provider,
             approval_policy: config_profile.approval_policy,
-            disable_response_storage: config_profile.disable_response_storage,
             model_reasoning_effort: config_profile.model_reasoning_effort,
             model_reasoning_summary: config_profile.model_reasoning_summary,
             model_verbosity: config_profile.model_verbosity,
diff --git a/codex-rs/core/tests/suite/client.rs b/codex-rs/core/tests/suite/client.rs
index 1bf7ef0c..cc1369e7 100644
--- a/codex-rs/core/tests/suite/client.rs
+++ b/codex-rs/core/tests/suite/client.rs
@@ -224,19 +224,16 @@ async fn resume_includes_initial_messages_and_sends_prior_items() {
     let expected_input = serde_json::json!([
         {
             "type": "message",
-            "id": null,
             "role": "user",
             "content": [{ "type": "input_text", "text": "resumed user message" }]
         },
         {
             "type": "message",
-            "id": null,
             "role": "assistant",
             "content": [{ "type": "output_text", "text": "resumed assistant message" }]
         },
         {
             "type": "message",
-            "id": null,
             "role": "user",
             "content": [{ "type": "input_text", "text": "hello" }]
         }
@@ -496,7 +493,6 @@ async fn chatgpt_auth_sends_correct_request() {
         "Bearer Access Token"
     );
     assert_eq!(request_chatgpt_account_id.to_str().unwrap(), "account_id");
-    assert!(!request_body["store"].as_bool().unwrap());
     assert!(request_body["stream"].as_bool().unwrap());
     assert_eq!(
         request_body["include"][0].as_str().unwrap(),
@@ -578,14 +574,6 @@ async fn prefers_chatgpt_token_when_config_prefers_chatgpt() {
         .unwrap();
 
     wait_for_event(&codex, |ev| matches!(ev, EventMsg::TaskComplete(_))).await;
-
-    // verify request body flags
-    let request = &server.received_requests().await.unwrap()[0];
-    let request_body = request.body_json::<serde_json::Value>().unwrap();
-    assert!(
-        !request_body["store"].as_bool().unwrap(),
-        "store should be false for ChatGPT auth"
-    );
 }
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
@@ -662,14 +650,6 @@ async fn prefers_apikey_when_config_prefers_apikey_even_with_chatgpt_tokens() {
         .unwrap();
 
     wait_for_event(&codex, |ev| matches!(ev, EventMsg::TaskComplete(_))).await;
-
-    // verify request body flags
-    let request = &server.received_requests().await.unwrap()[0];
-    let request_body = request.body_json::<serde_json::Value>().unwrap();
-    assert!(
-        request_body["store"].as_bool().unwrap(),
-        "store should be true for API key auth"
-    );
 }
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
@@ -990,31 +970,26 @@ async fn history_dedupes_streamed_and_final_messages_across_turns() {
     let r3_tail_expected = serde_json::json!([
         {
             "type": "message",
-            "id": null,
             "role": "user",
             "content": [{"type":"input_text","text":"U1"}]
         },
         {
             "type": "message",
-            "id": null,
             "role": "assistant",
             "content": [{"type":"output_text","text":"Hey there!\n"}]
         },
         {
             "type": "message",
-            "id": null,
             "role": "user",
             "content": [{"type":"input_text","text":"U2"}]
         },
         {
             "type": "message",
-            "id": null,
             "role": "assistant",
             "content": [{"type":"output_text","text":"Hey there!\n"}]
         },
         {
             "type": "message",
-            "id": null,
             "role": "user",
             "content": [{"type":"input_text","text":"U3"}]
         }
diff --git a/codex-rs/core/tests/suite/prompt_caching.rs b/codex-rs/core/tests/suite/prompt_caching.rs
index 11c6ea9a..4625841a 100644
--- a/codex-rs/core/tests/suite/prompt_caching.rs
+++ b/codex-rs/core/tests/suite/prompt_caching.rs
@@ -289,20 +289,17 @@ async fn prefixes_context_and_instructions_once_and_consistently_across_requests
 
     let expected_env_msg = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": expected_env_text } ]
     });
     let expected_ui_msg = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": expected_ui_text } ]
     });
 
     let expected_user_message_1 = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": "hello 1" } ]
     });
@@ -314,7 +311,6 @@ async fn prefixes_context_and_instructions_once_and_consistently_across_requests
 
     let expected_user_message_2 = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": "hello 2" } ]
     });
@@ -424,7 +420,6 @@ async fn overrides_turn_context_but_keeps_cached_prefix_and_key_constant() {
     // as the prefix of the second request, ensuring cache hit potential.
     let expected_user_message_2 = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": "hello 2" } ]
     });
@@ -438,7 +433,6 @@ async fn overrides_turn_context_but_keeps_cached_prefix_and_key_constant() {
 </environment_context>"#;
     let expected_env_msg_2 = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": expected_env_text_2 } ]
     });
@@ -543,7 +537,6 @@ async fn per_turn_overrides_keep_cached_prefix_and_key_constant() {
     // as the prefix of the second request.
     let expected_user_message_2 = serde_json::json!({
         "type": "message",
-        "id": serde_json::Value::Null,
         "role": "user",
         "content": [ { "type": "input_text", "text": "hello 2" } ]
     });
diff --git a/codex-rs/exec/src/lib.rs b/codex-rs/exec/src/lib.rs
index d5991efd..8215d7e6 100644
--- a/codex-rs/exec/src/lib.rs
+++ b/codex-rs/exec/src/lib.rs
@@ -149,7 +149,6 @@ pub async fn run_main(cli: Cli, codex_linux_sandbox_exe: Option<PathBuf>) -> any
         include_plan_tool: None,
         include_apply_patch_tool: None,
         include_view_image_tool: None,
-        disable_response_storage: oss.then_some(true),
         show_raw_agent_reasoning: oss.then_some(true),
         tools_web_search_request: None,
     };
diff --git a/codex-rs/mcp-server/src/codex_message_processor.rs b/codex-rs/mcp-server/src/codex_message_processor.rs
index 2309e01d..828cf1f1 100644
--- a/codex-rs/mcp-server/src/codex_message_processor.rs
+++ b/codex-rs/mcp-server/src/codex_message_processor.rs
@@ -994,7 +994,6 @@ fn derive_config_from_params(
         include_plan_tool,
         include_apply_patch_tool,
         include_view_image_tool: None,
-        disable_response_storage: None,
         show_raw_agent_reasoning: None,
         tools_web_search_request: None,
     };
diff --git a/codex-rs/mcp-server/src/codex_tool_config.rs b/codex-rs/mcp-server/src/codex_tool_config.rs
index c29cb52c..0ba5593f 100644
--- a/codex-rs/mcp-server/src/codex_tool_config.rs
+++ b/codex-rs/mcp-server/src/codex_tool_config.rs
@@ -162,7 +162,6 @@ impl CodexToolCallParam {
             include_plan_tool,
             include_apply_patch_tool: None,
             include_view_image_tool: None,
-            disable_response_storage: None,
             show_raw_agent_reasoning: None,
             tools_web_search_request: None,
         };
diff --git a/codex-rs/mcp-server/tests/suite/config.rs b/codex-rs/mcp-server/tests/suite/config.rs
index 809d426b..bc8789ce 100644
--- a/codex-rs/mcp-server/tests/suite/config.rs
+++ b/codex-rs/mcp-server/tests/suite/config.rs
@@ -51,7 +51,6 @@ model_reasoning_effort = "high"
 model_reasoning_summary = "detailed"
 model_verbosity = "medium"
 model_provider = "openai"
-disable_response_storage = false
 chatgpt_base_url = "https://api.chatgpt.com"
 "#,
     )
@@ -111,7 +110,6 @@ async fn get_config_toml_parses_all_fields() {
                     model_reasoning_summary: Some(ReasoningSummary::Detailed),
                     model_verbosity: Some(Verbosity::Medium),
                     model_provider: Some("openai".into()),
-                    disable_response_storage: Some(false),
                     chatgpt_base_url: Some("https://api.chatgpt.com".into()),
                 },
             )]),
diff --git a/codex-rs/protocol/src/mcp_protocol.rs b/codex-rs/protocol/src/mcp_protocol.rs
index 3980de0a..26d39eb6 100644
--- a/codex-rs/protocol/src/mcp_protocol.rs
+++ b/codex-rs/protocol/src/mcp_protocol.rs
@@ -371,7 +371,6 @@ pub struct Profile {
     /// [`ModelProviderInfo`] to use.
     pub model_provider: Option<String>,
     pub approval_policy: Option<AskForApproval>,
-    pub disable_response_storage: Option<bool>,
     pub model_reasoning_effort: Option<ReasoningEffort>,
     pub model_reasoning_summary: Option<ReasoningSummary>,
     pub model_verbosity: Option<Verbosity>,
diff --git a/codex-rs/protocol/src/models.rs b/codex-rs/protocol/src/models.rs
index 71b51709..e8dbf19c 100644
--- a/codex-rs/protocol/src/models.rs
+++ b/codex-rs/protocol/src/models.rs
@@ -42,11 +42,13 @@ pub enum ContentItem {
 #[serde(tag = "type", rename_all = "snake_case")]
 pub enum ResponseItem {
     Message {
+        #[serde(skip_serializing)]
         id: Option<String>,
         role: String,
         content: Vec<ContentItem>,
     },
     Reasoning {
+        #[serde(default)]
         id: String,
         summary: Vec<ReasoningItemReasoningSummary>,
         #[serde(default, skip_serializing_if = "should_serialize_reasoning_content")]
@@ -55,6 +57,7 @@ pub enum ResponseItem {
     },
     LocalShellCall {
         /// Set when using the chat completions API.
+        #[serde(skip_serializing)]
         id: Option<String>,
         /// Set when using the Responses API.
         call_id: Option<String>,
@@ -62,6 +65,7 @@ pub enum ResponseItem {
         action: LocalShellAction,
     },
     FunctionCall {
+        #[serde(skip_serializing)]
         id: Option<String>,
         name: String,
         // The Responses API returns the function call arguments as a *string* that contains
@@ -82,7 +86,7 @@ pub enum ResponseItem {
         output: FunctionCallOutputPayload,
     },
     CustomToolCall {
-        #[serde(default, skip_serializing_if = "Option::is_none")]
+        #[serde(skip_serializing)]
         id: Option<String>,
         #[serde(default, skip_serializing_if = "Option::is_none")]
         status: Option<String>,
@@ -104,7 +108,7 @@ pub enum ResponseItem {
     //   "action": {"type":"search","query":"weather: San Francisco, CA"}
     // }
     WebSearchCall {
-        #[serde(default, skip_serializing_if = "Option::is_none")]
+        #[serde(skip_serializing)]
         id: Option<String>,
         #[serde(default, skip_serializing_if = "Option::is_none")]
         status: Option<String>,
diff --git a/codex-rs/tui/src/lib.rs b/codex-rs/tui/src/lib.rs
index c43572dd..76ca93a3 100644
--- a/codex-rs/tui/src/lib.rs
+++ b/codex-rs/tui/src/lib.rs
@@ -130,7 +130,6 @@ pub async fn run_main(
         include_plan_tool: Some(true),
         include_apply_patch_tool: None,
         include_view_image_tool: None,
-        disable_response_storage: cli.oss.then_some(true),
         show_raw_agent_reasoning: cli.oss.then_some(true),
         tools_web_search_request: cli.web_search.then_some(true),
     };
diff --git a/docs/advanced.md b/docs/advanced.md
index 26f73599..42bbcc33 100644
--- a/docs/advanced.md
+++ b/docs/advanced.md
@@ -39,4 +39,4 @@ env = { "API_KEY" = "value" }
 ```
 
 > [!TIP]
-> It is somewhat experimental, but the Codex CLI can also be run as an MCP _server_ via `codex mcp`. If you launch it with an MCP client such as `npx @modelcontextprotocol/inspector codex mcp` and send it a `tools/list` request, you will see that there is only one tool, `codex`, that accepts a grab-bag of inputs, including a catch-all `config` map for anything you might want to override. Feel free to play around with it and provide feedback via GitHub issues. 
\ No newline at end of file
+> It is somewhat experimental, but the Codex CLI can also be run as an MCP _server_ via `codex mcp`. If you launch it with an MCP client such as `npx @modelcontextprotocol/inspector codex mcp` and send it a `tools/list` request, you will see that there is only one tool, `codex`, that accepts a grab-bag of inputs, including a catch-all `config` map for anything you might want to override. Feel free to play around with it and provide feedback via GitHub issues. 
diff --git a/docs/config.md b/docs/config.md
index 285c2ef8..d17eab47 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -182,7 +182,6 @@ Here is an example of a `config.toml` that defines multiple profiles:
 ```toml
 model = "o3"
 approval_policy = "untrusted"
-disable_response_storage = false
 
 # Setting `profile` is equivalent to specifying `--profile o3` on the command
 # line, though the `--profile` flag can still be used to override this value.
@@ -209,7 +208,6 @@ model_provider = "openai-chat-completions"
 model = "o3"
 model_provider = "openai"
 approval_policy = "on-failure"
-disable_response_storage = true
 ```
 
 Users can specify config values at multiple levels. Order of precedence is as follows:
@@ -362,14 +360,6 @@ args = ["-y", "mcp-server"]
 env = { "API_KEY" = "value" }
 ```
 
-## disable_response_storage
-
-Currently, customers whose accounts are set to use Zero Data Retention (ZDR) must set `disable_response_storage` to `true` so that Codex uses an alternative to the Responses API that works with ZDR:
-
-```toml
-disable_response_storage = true
-```
-
 ## shell_environment_policy
 
 Codex spawns subprocesses (e.g. when executing a `local_shell` tool-call suggested by the assistant). By default it now passes **your full environment** to those subprocesses. You can tune this behavior via the **`shell_environment_policy`** block in `config.toml`:
diff --git a/docs/zdr.md b/docs/zdr.md
index 92e78a34..d030e8d0 100644
--- a/docs/zdr.md
+++ b/docs/zdr.md
@@ -1,15 +1,3 @@
 ## Zero data retention (ZDR) usage
 
-Codex CLI **does** support OpenAI organizations with [Zero Data Retention (ZDR)](https://platform.openai.com/docs/guides/your-data#zero-data-retention) enabled. If your OpenAI organization has Zero Data Retention enabled and you still encounter errors such as:
-
-```
-OpenAI rejected the request. Error details: Status: 400, Code: unsupported_parameter, Type: invalid_request_error, Message: 400 Previous response cannot be used for this organization due to Zero Data Retention.
-```
-
-Ensure you are running `codex` with `--config disable_response_storage=true` or add this line to `~/.codex/config.toml` to avoid specifying the command line option each time:
-
-```toml
-disable_response_storage = true
-```
-
-See [the configuration documentation on `disable_response_storage`](./config.md#disable_response_storage) for details. 
\ No newline at end of file
+Codex CLI natively supports OpenAI organizations with [Zero Data Retention (ZDR)](https://platform.openai.com/docs/guides/your-data#zero-data-retention) enabled.