diff --git a/.github/workflows/unit_evals.yml b/.github/workflows/unit_evals.yml
index e033ba40ce..6ffae74e4e 100644
--- a/.github/workflows/unit_evals.yml
+++ b/.github/workflows/unit_evals.yml
@@ -62,7 +62,7 @@ jobs:
 
       - name: Run unit evals
         shell: bash -euxo pipefail {0}
-        run: cargo nextest run --workspace --no-fail-fast --features eval --no-capture -E 'test(::eval_)' --test-threads 1
+        run: cargo nextest run --workspace --no-fail-fast --features eval --no-capture -E 'test(::eval_)'
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
 
diff --git a/Cargo.lock b/Cargo.lock
index c9f91959dc..3272bba810 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -705,6 +705,7 @@ dependencies = [
  "serde_json",
  "settings",
  "smallvec",
+ "smol",
  "streaming_diff",
  "strsim",
  "task",
diff --git a/crates/agent/src/buffer_codegen.rs b/crates/agent/src/buffer_codegen.rs
index 166a002be2..e566ea9d86 100644
--- a/crates/agent/src/buffer_codegen.rs
+++ b/crates/agent/src/buffer_codegen.rs
@@ -386,8 +386,10 @@ impl CodegenAlternative {
                 async { Ok(LanguageModelTextStream::default()) }.boxed_local()
             } else {
                 let request = self.build_request(&model, user_prompt, cx)?;
-                cx.spawn(async move |_, cx| model.stream_completion_text(request.await, &cx).await)
-                    .boxed_local()
+                cx.spawn(async move |_, cx| {
+                    Ok(model.stream_completion_text(request.await, &cx).await?)
+                })
+                .boxed_local()
             };
         self.handle_stream(telemetry_id, provider_id.to_string(), api_key, stream, cx);
         Ok(())
diff --git a/crates/agent/src/thread.rs b/crates/agent/src/thread.rs
index ad0e9260dc..eac99eefbe 100644
--- a/crates/agent/src/thread.rs
+++ b/crates/agent/src/thread.rs
@@ -1563,6 +1563,9 @@ impl Thread {
                             Err(LanguageModelCompletionError::Other(error)) => {
                                 return Err(error);
                             }
+                            Err(err @ LanguageModelCompletionError::RateLimit(..)) => {
+                                return Err(err.into());
+                            }
                         };
 
                         match event {
diff --git a/crates/anthropic/src/anthropic.rs b/crates/anthropic/src/anthropic.rs
index be111235ec..58369ea252 100644
--- a/crates/anthropic/src/anthropic.rs
+++ b/crates/anthropic/src/anthropic.rs
@@ -1,4 +1,5 @@
 use std::str::FromStr;
+use std::time::Duration;
 
 use anyhow::{Context as _, Result, anyhow};
 use chrono::{DateTime, Utc};
@@ -406,6 +407,7 @@ impl RateLimit {
 /// <https://docs.anthropic.com/en/api/rate-limits#response-headers>
 #[derive(Debug)]
 pub struct RateLimitInfo {
+    pub retry_after: Option<Duration>,
     pub requests: Option<RateLimit>,
     pub tokens: Option<RateLimit>,
     pub input_tokens: Option<RateLimit>,
@@ -417,10 +419,11 @@ impl RateLimitInfo {
         // Check if any rate limit headers exist
         let has_rate_limit_headers = headers
             .keys()
-            .any(|k| k.as_str().starts_with("anthropic-ratelimit-"));
+            .any(|k| k == "retry-after" || k.as_str().starts_with("anthropic-ratelimit-"));
 
         if !has_rate_limit_headers {
             return Self {
+                retry_after: None,
                 requests: None,
                 tokens: None,
                 input_tokens: None,
@@ -429,6 +432,11 @@ impl RateLimitInfo {
         }
 
         Self {
+            retry_after: headers
+                .get("retry-after")
+                .and_then(|v| v.to_str().ok())
+                .and_then(|v| v.parse::<u64>().ok())
+                .map(Duration::from_secs),
             requests: RateLimit::from_headers("requests", headers).ok(),
             tokens: RateLimit::from_headers("tokens", headers).ok(),
             input_tokens: RateLimit::from_headers("input-tokens", headers).ok(),
@@ -481,8 +489,8 @@ pub async fn stream_completion_with_rate_limit_info(
         .send(request)
         .await
         .context("failed to send request to Anthropic")?;
+    let rate_limits = RateLimitInfo::from_headers(response.headers());
     if response.status().is_success() {
-        let rate_limits = RateLimitInfo::from_headers(response.headers());
         let reader = BufReader::new(response.into_body());
         let stream = reader
             .lines()
@@ -500,6 +508,8 @@ pub async fn stream_completion_with_rate_limit_info(
             })
             .boxed();
         Ok((stream, Some(rate_limits)))
+    } else if let Some(retry_after) = rate_limits.retry_after {
+        Err(AnthropicError::RateLimit(retry_after))
     } else {
         let mut body = Vec::new();
         response
@@ -769,6 +779,8 @@ pub struct MessageDelta {
 
 #[derive(Error, Debug)]
 pub enum AnthropicError {
+    #[error("rate limit exceeded, retry after {0:?}")]
+    RateLimit(Duration),
     #[error("an error occurred while interacting with the Anthropic API: {error_type}: {message}", error_type = .0.error_type, message = .0.message)]
     ApiError(ApiError),
     #[error("{0}")]
diff --git a/crates/assistant_context_editor/src/language_model_selector.rs b/crates/assistant_context_editor/src/language_model_selector.rs
index 049c4d24bd..732d8a326e 100644
--- a/crates/assistant_context_editor/src/language_model_selector.rs
+++ b/crates/assistant_context_editor/src/language_model_selector.rs
@@ -682,11 +682,12 @@ mod tests {
             _: &AsyncApp,
         ) -> BoxFuture<
             'static,
-            http_client::Result<
+            Result<
                 BoxStream<
                     'static,
-                    http_client::Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
+                    Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
                 >,
+                LanguageModelCompletionError,
             >,
         > {
             unimplemented!()
diff --git a/crates/assistant_tools/Cargo.toml b/crates/assistant_tools/Cargo.toml
index ded54460d7..2b8958feb1 100644
--- a/crates/assistant_tools/Cargo.toml
+++ b/crates/assistant_tools/Cargo.toml
@@ -80,6 +80,7 @@ rand.workspace = true
 pretty_assertions.workspace = true
 reqwest_client.workspace = true
 settings = { workspace = true, features = ["test-support"] }
+smol.workspace = true
 task = { workspace = true, features = ["test-support"]}
 tempfile.workspace = true
 theme.workspace = true
diff --git a/crates/assistant_tools/src/edit_agent/evals.rs b/crates/assistant_tools/src/edit_agent/evals.rs
index f07edff09e..023febbdae 100644
--- a/crates/assistant_tools/src/edit_agent/evals.rs
+++ b/crates/assistant_tools/src/edit_agent/evals.rs
@@ -11,7 +11,7 @@ use client::{Client, UserStore};
 use collections::HashMap;
 use fs::FakeFs;
 use futures::{FutureExt, future::LocalBoxFuture};
-use gpui::{AppContext, TestAppContext};
+use gpui::{AppContext, TestAppContext, Timer};
 use indoc::{formatdoc, indoc};
 use language_model::{
     LanguageModelRegistry, LanguageModelRequestTool, LanguageModelToolResult,
@@ -1255,9 +1255,12 @@ impl EvalAssertion {
                 }],
                 ..Default::default()
             };
-            let mut response = judge
-                .stream_completion_text(request, &cx.to_async())
-                .await?;
+            let mut response = retry_on_rate_limit(async || {
+                Ok(judge
+                    .stream_completion_text(request.clone(), &cx.to_async())
+                    .await?)
+            })
+            .await?;
             let mut output = String::new();
             while let Some(chunk) = response.stream.next().await {
                 let chunk = chunk?;
@@ -1308,10 +1311,17 @@ fn eval(
     run_eval(eval.clone(), tx.clone());
 
     let executor = gpui::background_executor();
+    let semaphore = Arc::new(smol::lock::Semaphore::new(32));
     for _ in 1..iterations {
         let eval = eval.clone();
         let tx = tx.clone();
-        executor.spawn(async move { run_eval(eval, tx) }).detach();
+        let semaphore = semaphore.clone();
+        executor
+            .spawn(async move {
+                let _guard = semaphore.acquire().await;
+                run_eval(eval, tx)
+            })
+            .detach();
     }
     drop(tx);
 
@@ -1577,21 +1587,31 @@ impl EditAgentTest {
             if let Some(input_content) = eval.input_content.as_deref() {
                 buffer.update(cx, |buffer, cx| buffer.set_text(input_content, cx));
             }
-            let (edit_output, _) = self.agent.edit(
-                buffer.clone(),
-                eval.edit_file_input.display_description,
-                &conversation,
-                &mut cx.to_async(),
-            );
-            edit_output.await?
+            retry_on_rate_limit(async || {
+                self.agent
+                    .edit(
+                        buffer.clone(),
+                        eval.edit_file_input.display_description.clone(),
+                        &conversation,
+                        &mut cx.to_async(),
+                    )
+                    .0
+                    .await
+            })
+            .await?
         } else {
-            let (edit_output, _) = self.agent.overwrite(
-                buffer.clone(),
-                eval.edit_file_input.display_description,
-                &conversation,
-                &mut cx.to_async(),
-            );
-            edit_output.await?
+            retry_on_rate_limit(async || {
+                self.agent
+                    .overwrite(
+                        buffer.clone(),
+                        eval.edit_file_input.display_description.clone(),
+                        &conversation,
+                        &mut cx.to_async(),
+                    )
+                    .0
+                    .await
+            })
+            .await?
         };
 
         let buffer_text = buffer.read_with(cx, |buffer, _| buffer.text());
@@ -1613,6 +1633,26 @@ impl EditAgentTest {
     }
 }
 
+async fn retry_on_rate_limit<R>(mut request: impl AsyncFnMut() -> Result<R>) -> Result<R> {
+    loop {
+        match request().await {
+            Ok(result) => return Ok(result),
+            Err(err) => match err.downcast::<LanguageModelCompletionError>() {
+                Ok(err) => match err {
+                    LanguageModelCompletionError::RateLimit(duration) => {
+                        // Wait until after we are allowed to try again
+                        eprintln!("Rate limit exceeded. Waiting for {duration:?}...",);
+                        Timer::after(duration).await;
+                        continue;
+                    }
+                    _ => return Err(err.into()),
+                },
+                Err(err) => return Err(err),
+            },
+        }
+    }
+}
+
 #[derive(Clone, Debug, Eq, PartialEq, Hash)]
 struct EvalAssertionOutcome {
     score: usize,
diff --git a/crates/language_model/src/fake_provider.rs b/crates/language_model/src/fake_provider.rs
index b4ba0c057f..f04f568b72 100644
--- a/crates/language_model/src/fake_provider.rs
+++ b/crates/language_model/src/fake_provider.rs
@@ -185,6 +185,7 @@ impl LanguageModel for FakeLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let (tx, rx) = mpsc::unbounded();
diff --git a/crates/language_model/src/language_model.rs b/crates/language_model/src/language_model.rs
index 7fb2f57585..01f005d73c 100644
--- a/crates/language_model/src/language_model.rs
+++ b/crates/language_model/src/language_model.rs
@@ -22,6 +22,7 @@ use std::fmt;
 use std::ops::{Add, Sub};
 use std::str::FromStr as _;
 use std::sync::Arc;
+use std::time::Duration;
 use thiserror::Error;
 use util::serde::is_default;
 use zed_llm_client::{
@@ -74,6 +75,8 @@ pub enum LanguageModelCompletionEvent {
 
 #[derive(Error, Debug)]
 pub enum LanguageModelCompletionError {
+    #[error("rate limit exceeded, retry after {0:?}")]
+    RateLimit(Duration),
     #[error("received bad input JSON")]
     BadInputJson {
         id: LanguageModelToolUseId,
@@ -270,6 +273,7 @@ pub trait LanguageModel: Send + Sync {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     >;
 
@@ -277,7 +281,7 @@ pub trait LanguageModel: Send + Sync {
         &self,
         request: LanguageModelRequest,
         cx: &AsyncApp,
-    ) -> BoxFuture<'static, Result<LanguageModelTextStream>> {
+    ) -> BoxFuture<'static, Result<LanguageModelTextStream, LanguageModelCompletionError>> {
         let future = self.stream_completion(request, cx);
 
         async move {
diff --git a/crates/language_model/src/rate_limiter.rs b/crates/language_model/src/rate_limiter.rs
index a48d34488b..790be05ac0 100644
--- a/crates/language_model/src/rate_limiter.rs
+++ b/crates/language_model/src/rate_limiter.rs
@@ -1,4 +1,3 @@
-use anyhow::Result;
 use futures::Stream;
 use smol::lock::{Semaphore, SemaphoreGuardArc};
 use std::{
@@ -8,6 +7,8 @@ use std::{
     task::{Context, Poll},
 };
 
+use crate::LanguageModelCompletionError;
+
 #[derive(Clone)]
 pub struct RateLimiter {
     semaphore: Arc<Semaphore>,
@@ -36,9 +37,12 @@ impl RateLimiter {
         }
     }
 
-    pub fn run<'a, Fut, T>(&self, future: Fut) -> impl 'a + Future<Output = Result<T>>
+    pub fn run<'a, Fut, T>(
+        &self,
+        future: Fut,
+    ) -> impl 'a + Future<Output = Result<T, LanguageModelCompletionError>>
     where
-        Fut: 'a + Future<Output = Result<T>>,
+        Fut: 'a + Future<Output = Result<T, LanguageModelCompletionError>>,
     {
         let guard = self.semaphore.acquire_arc();
         async move {
@@ -52,9 +56,12 @@ impl RateLimiter {
     pub fn stream<'a, Fut, T>(
         &self,
         future: Fut,
-    ) -> impl 'a + Future<Output = Result<impl Stream<Item = T::Item> + use<Fut, T>>>
+    ) -> impl 'a
+    + Future<
+        Output = Result<impl Stream<Item = T::Item> + use<Fut, T>, LanguageModelCompletionError>,
+    >
     where
-        Fut: 'a + Future<Output = Result<T>>,
+        Fut: 'a + Future<Output = Result<T, LanguageModelCompletionError>>,
         T: Stream,
     {
         let guard = self.semaphore.acquire_arc();
diff --git a/crates/language_models/src/provider/anthropic.rs b/crates/language_models/src/provider/anthropic.rs
index 4a524eb452..c581f01f4c 100644
--- a/crates/language_models/src/provider/anthropic.rs
+++ b/crates/language_models/src/provider/anthropic.rs
@@ -387,22 +387,34 @@ impl AnthropicModel {
         &self,
         request: anthropic::Request,
         cx: &AsyncApp,
-    ) -> BoxFuture<'static, Result<BoxStream<'static, Result<anthropic::Event, AnthropicError>>>>
-    {
+    ) -> BoxFuture<
+        'static,
+        Result<
+            BoxStream<'static, Result<anthropic::Event, AnthropicError>>,
+            LanguageModelCompletionError,
+        >,
+    > {
         let http_client = self.http_client.clone();
 
         let Ok((api_key, api_url)) = cx.read_entity(&self.state, |state, cx| {
             let settings = &AllLanguageModelSettings::get_global(cx).anthropic;
             (state.api_key.clone(), settings.api_url.clone())
         }) else {
-            return futures::future::ready(Err(anyhow!("App state dropped"))).boxed();
+            return futures::future::ready(Err(anyhow!("App state dropped").into())).boxed();
         };
 
         async move {
             let api_key = api_key.context("Missing Anthropic API Key")?;
             let request =
                 anthropic::stream_completion(http_client.as_ref(), &api_url, &api_key, request);
-            request.await.context("failed to stream completion")
+            request.await.map_err(|err| match err {
+                AnthropicError::RateLimit(duration) => {
+                    LanguageModelCompletionError::RateLimit(duration)
+                }
+                err @ (AnthropicError::ApiError(..) | AnthropicError::Other(..)) => {
+                    LanguageModelCompletionError::Other(anthropic_err_to_anyhow(err))
+                }
+            })
         }
         .boxed()
     }
@@ -473,6 +485,7 @@ impl LanguageModel for AnthropicModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_anthropic(
@@ -484,12 +497,7 @@ impl LanguageModel for AnthropicModel {
         );
         let request = self.stream_completion(request, cx);
         let future = self.request_limiter.stream(async move {
-            let response = request
-                .await
-                .map_err(|err| match err.downcast::<AnthropicError>() {
-                    Ok(anthropic_err) => anthropic_err_to_anyhow(anthropic_err),
-                    Err(err) => anyhow!(err),
-                })?;
+            let response = request.await?;
             Ok(AnthropicEventMapper::new().map_stream(response))
         });
         async move { Ok(future.await?.boxed()) }.boxed()
diff --git a/crates/language_models/src/provider/bedrock.rs b/crates/language_models/src/provider/bedrock.rs
index 2ee786fbb6..8ec659c97a 100644
--- a/crates/language_models/src/provider/bedrock.rs
+++ b/crates/language_models/src/provider/bedrock.rs
@@ -527,6 +527,7 @@ impl LanguageModel for BedrockModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let Ok(region) = cx.read_entity(&self.state, |state, _cx| {
@@ -539,16 +540,13 @@ impl LanguageModel for BedrockModel {
                 .or(settings_region)
                 .unwrap_or(String::from("us-east-1"))
         }) else {
-            return async move {
-                anyhow::bail!("App State Dropped");
-            }
-            .boxed();
+            return async move { Err(anyhow::anyhow!("App State Dropped").into()) }.boxed();
         };
 
         let model_id = match self.model.cross_region_inference_id(&region) {
             Ok(s) => s,
             Err(e) => {
-                return async move { Err(e) }.boxed();
+                return async move { Err(e.into()) }.boxed();
             }
         };
 
@@ -560,7 +558,7 @@ impl LanguageModel for BedrockModel {
             self.model.mode(),
         ) {
             Ok(request) => request,
-            Err(err) => return futures::future::ready(Err(err)).boxed(),
+            Err(err) => return futures::future::ready(Err(err.into())).boxed(),
         };
 
         let owned_handle = self.handler.clone();
diff --git a/crates/language_models/src/provider/cloud.rs b/crates/language_models/src/provider/cloud.rs
index ee6fe8d484..b04971c5ed 100644
--- a/crates/language_models/src/provider/cloud.rs
+++ b/crates/language_models/src/provider/cloud.rs
@@ -807,6 +807,7 @@ impl LanguageModel for CloudLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let thread_id = request.thread_id.clone();
@@ -848,7 +849,8 @@ impl LanguageModel for CloudLanguageModel {
                             mode,
                             provider: zed_llm_client::LanguageModelProvider::Anthropic,
                             model: request.model.clone(),
-                            provider_request: serde_json::to_value(&request)?,
+                            provider_request: serde_json::to_value(&request)
+                                .map_err(|e| anyhow!(e))?,
                         },
                     )
                     .await
@@ -884,7 +886,7 @@ impl LanguageModel for CloudLanguageModel {
                 let client = self.client.clone();
                 let model = match open_ai::Model::from_id(&self.model.id.0) {
                     Ok(model) => model,
-                    Err(err) => return async move { Err(anyhow!(err)) }.boxed(),
+                    Err(err) => return async move { Err(anyhow!(err).into()) }.boxed(),
                 };
                 let request = into_open_ai(request, &model, None);
                 let llm_api_token = self.llm_api_token.clone();
@@ -905,7 +907,8 @@ impl LanguageModel for CloudLanguageModel {
                             mode,
                             provider: zed_llm_client::LanguageModelProvider::OpenAi,
                             model: request.model.clone(),
-                            provider_request: serde_json::to_value(&request)?,
+                            provider_request: serde_json::to_value(&request)
+                                .map_err(|e| anyhow!(e))?,
                         },
                     )
                     .await?;
@@ -944,7 +947,8 @@ impl LanguageModel for CloudLanguageModel {
                             mode,
                             provider: zed_llm_client::LanguageModelProvider::Google,
                             model: request.model.model_id.clone(),
-                            provider_request: serde_json::to_value(&request)?,
+                            provider_request: serde_json::to_value(&request)
+                                .map_err(|e| anyhow!(e))?,
                         },
                     )
                     .await?;
diff --git a/crates/language_models/src/provider/copilot_chat.rs b/crates/language_models/src/provider/copilot_chat.rs
index fc655e0c6f..11015aa455 100644
--- a/crates/language_models/src/provider/copilot_chat.rs
+++ b/crates/language_models/src/provider/copilot_chat.rs
@@ -265,13 +265,15 @@ impl LanguageModel for CopilotChatLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         if let Some(message) = request.messages.last() {
             if message.contents_empty() {
                 const EMPTY_PROMPT_MSG: &str =
                     "Empty prompts aren't allowed. Please provide a non-empty prompt.";
-                return futures::future::ready(Err(anyhow::anyhow!(EMPTY_PROMPT_MSG))).boxed();
+                return futures::future::ready(Err(anyhow::anyhow!(EMPTY_PROMPT_MSG).into()))
+                    .boxed();
             }
 
             // Copilot Chat has a restriction that the final message must be from the user.
@@ -279,13 +281,13 @@ impl LanguageModel for CopilotChatLanguageModel {
             // and provide a more helpful error message.
             if !matches!(message.role, Role::User) {
                 const USER_ROLE_MSG: &str = "The final message must be from the user. To provide a system prompt, you must provide the system prompt followed by a user prompt.";
-                return futures::future::ready(Err(anyhow::anyhow!(USER_ROLE_MSG))).boxed();
+                return futures::future::ready(Err(anyhow::anyhow!(USER_ROLE_MSG).into())).boxed();
             }
         }
 
         let copilot_request = match into_copilot_chat(&self.model, request) {
             Ok(request) => request,
-            Err(err) => return futures::future::ready(Err(err)).boxed(),
+            Err(err) => return futures::future::ready(Err(err.into())).boxed(),
         };
         let is_streaming = copilot_request.stream;
 
diff --git a/crates/language_models/src/provider/deepseek.rs b/crates/language_models/src/provider/deepseek.rs
index 6a16ec019f..4a4faa13a7 100644
--- a/crates/language_models/src/provider/deepseek.rs
+++ b/crates/language_models/src/provider/deepseek.rs
@@ -348,6 +348,7 @@ impl LanguageModel for DeepSeekLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_deepseek(request, &self.model, self.max_output_tokens());
diff --git a/crates/language_models/src/provider/google.rs b/crates/language_models/src/provider/google.rs
index 8608666c46..aeee2ca73e 100644
--- a/crates/language_models/src/provider/google.rs
+++ b/crates/language_models/src/provider/google.rs
@@ -409,6 +409,7 @@ impl LanguageModel for GoogleLanguageModel {
                 'static,
                 Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
             >,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_google(
diff --git a/crates/language_models/src/provider/lmstudio.rs b/crates/language_models/src/provider/lmstudio.rs
index 792d39bfed..8f0704c5bc 100644
--- a/crates/language_models/src/provider/lmstudio.rs
+++ b/crates/language_models/src/provider/lmstudio.rs
@@ -420,6 +420,7 @@ impl LanguageModel for LmStudioLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let request = self.to_lmstudio_request(request);
diff --git a/crates/language_models/src/provider/mistral.rs b/crates/language_models/src/provider/mistral.rs
index 6debead977..d00af8ecd6 100644
--- a/crates/language_models/src/provider/mistral.rs
+++ b/crates/language_models/src/provider/mistral.rs
@@ -364,6 +364,7 @@ impl LanguageModel for MistralLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_mistral(
diff --git a/crates/language_models/src/provider/ollama.rs b/crates/language_models/src/provider/ollama.rs
index bf2a2e1597..fca78e4791 100644
--- a/crates/language_models/src/provider/ollama.rs
+++ b/crates/language_models/src/provider/ollama.rs
@@ -406,6 +406,7 @@ impl LanguageModel for OllamaLanguageModel {
         'static,
         Result<
             BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
+            LanguageModelCompletionError,
         >,
     > {
         let request = self.to_ollama_request(request);
@@ -415,7 +416,7 @@ impl LanguageModel for OllamaLanguageModel {
             let settings = &AllLanguageModelSettings::get_global(cx).ollama;
             settings.api_url.clone()
         }) else {
-            return futures::future::ready(Err(anyhow!("App state dropped"))).boxed();
+            return futures::future::ready(Err(anyhow!("App state dropped").into())).boxed();
         };
 
         let future = self.request_limiter.stream(async move {
diff --git a/crates/language_models/src/provider/open_ai.rs b/crates/language_models/src/provider/open_ai.rs
index 48812edcc8..146aac9cfa 100644
--- a/crates/language_models/src/provider/open_ai.rs
+++ b/crates/language_models/src/provider/open_ai.rs
@@ -339,6 +339,7 @@ impl LanguageModel for OpenAiLanguageModel {
                 'static,
                 Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
             >,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_open_ai(request, &self.model, self.max_output_tokens());
diff --git a/crates/language_models/src/provider/open_router.rs b/crates/language_models/src/provider/open_router.rs
index 7af265544a..623316916b 100644
--- a/crates/language_models/src/provider/open_router.rs
+++ b/crates/language_models/src/provider/open_router.rs
@@ -367,6 +367,7 @@ impl LanguageModel for OpenRouterLanguageModel {
                 'static,
                 Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
             >,
+            LanguageModelCompletionError,
         >,
     > {
         let request = into_open_router(request, &self.model, self.max_output_tokens());