Merge https://github.com/ollama/ollama

README.md

@@ -346,6 +346,9 @@ See the [API documentation](./docs/api.md) for all endpoints.
 - [Web management](https://github.com/lemonit-eric-mao/ollama-web-management) (Web management page)
 - [Promptery](https://github.com/promptery/promptery) (desktop client for Ollama.)
 - [Ollama App](https://github.com/JHubi1/ollama-app) (Modern and easy-to-use multi-platform client for Ollama)
+- [SpaceLlama](https://github.com/tcsenpai/spacellama) (Firefox and Chrome extension to quickly summarize web pages with ollama in a sidebar)
+- [YouLama](https://github.com/tcsenpai/youlama) (Webapp to quickly summarize any YouTube video, supporting Invidious as well)
+- [DualMind](https://github.com/tcsenpai/dualmind) (Experimental app allowing two models to talk to each other in the terminal or in a web interface)
 - [ollamarama-matrix](https://github.com/h1ddenpr0cess20/ollamarama-matrix) (Ollama chatbot for the Matrix chat protocol)
 - [ollama-chat-app](https://github.com/anan1213095357/ollama-chat-app) (Flutter-based chat app)
 - [Perfect Memory AI](https://www.perfectmemory.ai/) (Productivity AI assists personalized by what you have seen on your screen, heard and said in the meetings)

api/types.go

@@ -146,6 +146,7 @@ type ToolCall struct {
 }
 
 type ToolCallFunction struct {
+	Index     int                       `json:"index,omitempty"`
 	Name      string                    `json:"name"`
 	Arguments ToolCallFunctionArguments `json:"arguments"`
 }

llama/README.md

@@ -93,7 +93,7 @@ make -j
 
 ## Vendoring
 
-Ollama currently vendors [llama.cpp](https://github.com/ggerganov/llama.cpp/) and [ggml](https://github.com/ggerganov/ggml) through a vendoring model.  While we generally strive to contribute changes back upstream to avoid drift, we cary a small set of patches which are applied to the tracking commit.  A set of make targets are available to aid developers in updating to a newer tracking commit, or to work on changes.
+Ollama currently vendors [llama.cpp](https://github.com/ggerganov/llama.cpp/) and [ggml](https://github.com/ggerganov/ggml) through a vendoring model. While we generally strive to contribute changes back upstream to avoid drift, we cary a small set of patches which are applied to the tracking commit. A set of make targets are available to aid developers in updating to a newer tracking commit, or to work on changes.
 
 If you update the vendoring code, start by running the following command to establish the tracking llama.cpp repo in the `./vendor/` directory.
 
@@ -105,35 +105,35 @@ make apply-patches
 
 **Pin to new base commit**
 
-To update to a newer base commit, select the upstream git tag or commit and update `llama/vendoring.env`
+To update to a newer base commit, select the upstream git tag or commit and update `llama/vendoring`
 
 #### Applying patches
 
 When updating to a newer base commit, the existing patches may not apply cleanly and require manual merge resolution.
 
-Start by applying the patches.  If any of the patches have conflicts, the `git am` will stop at the first failure.
+Start by applying the patches. If any of the patches have conflicts, the `git am` will stop at the first failure.
 
 ```
 make apply-patches
 ```
 
-If you see an error message about a conflict, go into the `./vendor/` directory, and perform merge resolution using your preferred tool to the patch commit which failed.  Save the file(s) and continue the patch series with `git am --continue` .  If any additional patches fail, follow the same pattern until the full patch series is applied.  Once finished, run a final `create-patches` and `sync` target to ensure everything is updated.
+If you see an error message about a conflict, go into the `./vendor/` directory, and perform merge resolution using your preferred tool to the patch commit which failed. Save the file(s) and continue the patch series with `git am --continue` . If any additional patches fail, follow the same pattern until the full patch series is applied. Once finished, run a final `create-patches` and `sync` target to ensure everything is updated.
 
 ```
 make create-patches sync
 ```
 
-Build and test Ollama, and make any necessary changes to the Go code based on the new base commit.  Submit your PR to the Ollama repo.
+Build and test Ollama, and make any necessary changes to the Go code based on the new base commit. Submit your PR to the Ollama repo.
 
 ### Generating Patches
 
-When working on new fixes or features that impact vendored code, use the following model.  First get a clean tracking repo with all current patches applied:
+When working on new fixes or features that impact vendored code, use the following model. First get a clean tracking repo with all current patches applied:
 
 ```
 make apply-patches
 ```
 
-Now edit the upstream native code in the `./vendor/` directory.  You do not need to commit every change in order to build, a dirty working tree in the tracking repo is OK while developing.  Simply save in your editor, and run the following to refresh the vendored code with your changes, build the backend(s) and build ollama:
+Now edit the upstream native code in the `./vendor/` directory. You do not need to commit every change in order to build, a dirty working tree in the tracking repo is OK while developing. Simply save in your editor, and run the following to refresh the vendored code with your changes, build the backend(s) and build ollama:
 
 ```
 make sync
@@ -142,9 +142,9 @@ go build .
 ```
 
 > [!IMPORTANT]
-> Do **NOT** run `apply-patches` while you're iterating as that will reset the tracking repo.  It will detect a dirty tree and abort, but if your tree is clean and you accidentally ran this target, use `git reflog` to recover your commit(s).
+> Do **NOT** run `apply-patches` while you're iterating as that will reset the tracking repo. It will detect a dirty tree and abort, but if your tree is clean and you accidentally ran this target, use `git reflog` to recover your commit(s).
 
-Iterate until you're ready to submit PRs.  Once your code is ready, commit a change in the `./vendor/` directory, then generate the patches for ollama with
+Iterate until you're ready to submit PRs. Once your code is ready, commit a change in the `./vendor/` directory, then generate the patches for ollama with
 
 ```
 make create-patches
@@ -157,4 +157,4 @@ In your `./vendor/` directory, create a branch, and cherry-pick the new commit t
 
 Commit the changes in the ollama repo and submit a PR to Ollama, which will include the vendored code update with your change, along with the patches.
 
-After your PR upstream is merged, follow the **Updating Base Commit** instructions above, however first remove your patch before running `apply-patches` since the new base commit contains your change already.
+After your PR upstream is merged, follow the **Updating Base Commit** instructions above, however first remove your patch before running `apply-patches` since the new base commit contains your change already.

llama/runner/runner.go

@@ -833,10 +833,21 @@ func (s *Server) health(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+type multiLPath []string
+
+func (m *multiLPath) Set(value string) error {
+	*m = append(*m, value)
+	return nil
+}
+
+func (m *multiLPath) String() string {
+	return strings.Join(*m, ", ")
+}
+
 func (s *Server) loadModel(
 	params llama.ModelParams,
 	mpath string,
-	lpath string,
+	lpath multiLPath,
 	ppath string,
 	kvSize int,
 	flashAttention bool,
@@ -857,10 +868,12 @@ func (s *Server) loadModel(
 		panic(err)
 	}
 
-	if lpath != "" {
+	if lpath.String() != "" {
-		err := s.model.ApplyLoraFromFile(s.lc, lpath, 1.0, threads)
+		for _, path := range lpath {
-		if err != nil {
+			err := s.model.ApplyLoraFromFile(s.lc, path, 1.0, threads)
-			panic(err)
+			if err != nil {
+				panic(err)
+			}
 		}
 	}
 
@@ -890,7 +903,6 @@ func main() {
 	mainGpu := flag.Int("main-gpu", 0, "Main GPU")
 	flashAttention := flag.Bool("flash-attn", false, "Enable flash attention")
 	kvSize := flag.Int("ctx-size", 2048, "Context (or KV cache) size")
-	lpath := flag.String("lora", "", "Path to lora layer file")
 	port := flag.Int("port", 8080, "Port to expose the server on")
 	threads := flag.Int("threads", runtime.NumCPU(), "Number of threads to use during generation")
 	verbose := flag.Bool("verbose", false, "verbose output (default: disabled)")
@@ -900,6 +912,9 @@ func main() {
 	multiUserCache := flag.Bool("multiuser-cache", false, "optimize input cache algorithm for multiple users")
 	requirements := flag.Bool("requirements", false, "print json requirement information")
 
+	var lpaths multiLPath
+	flag.Var(&lpaths, "lora", "Path to lora layer file (can be specified multiple times)")
+
 	flag.Parse()
 	if *requirements {
 		printRequirements(os.Stdout)
@@ -946,7 +961,7 @@ func main() {
 	params := llama.ModelParams{
 		NumGpuLayers: *nGpuLayers,
 		MainGpu:      *mainGpu,
-		UseMmap:      !*noMmap && *lpath == "",
+		UseMmap:      !*noMmap && lpaths.String() == "",
 		UseMlock:     *mlock,
 		TensorSplit:  tensorSplitFloats,
 		Progress: func(progress float32) {
@@ -955,7 +970,7 @@ func main() {
 	}
 
 	server.ready.Add(1)
-	go server.loadModel(params, *mpath, *lpath, *ppath, *kvSize, *flashAttention, *threads, *multiUserCache)
+	go server.loadModel(params, *mpath, lpaths, *ppath, *kvSize, *flashAttention, *threads, *multiUserCache)
 
 	server.cond = sync.NewCond(&server.mu)
 

llm/server.go

@@ -144,10 +144,6 @@ func NewLlamaServer(gpus discover.GpuInfoList, model string, ggml *GGML, adapter
 	// Loop through potential servers
 	finalErr := errors.New("no suitable llama servers found")
 
-	if len(adapters) > 1 {
-		return nil, errors.New("ollama supports only one lora adapter, but multiple were provided")
-	}
-
 	rDir, err := runners.Refresh(build.EmbedFS)
 	if err != nil {
 		return nil, err
@@ -201,8 +197,9 @@ func NewLlamaServer(gpus discover.GpuInfoList, model string, ggml *GGML, adapter
 	}
 
 	if len(adapters) > 0 {
-		// TODO: applying multiple adapters is not supported by the llama.cpp server yet
+		for _, adapter := range adapters {
-		params = append(params, "--lora", adapters[0])
+			params = append(params, "--lora", adapter)
+		}
 	}
 
 	if len(projectors) > 0 {

openai/openai.go

@@ -140,6 +140,7 @@ type CompletionChunk struct {
 
 type ToolCall struct {
 	ID       string `json:"id"`
+	Index    int    `json:"index"`
 	Type     string `json:"type"`
 	Function struct {
 		Name      string `json:"name"`
@@ -200,12 +201,13 @@ func toolCallId() string {
 	return "call_" + strings.ToLower(string(b))
 }
 
-func toChatCompletion(id string, r api.ChatResponse) ChatCompletion {
+func toToolCalls(tc []api.ToolCall) []ToolCall {
-	toolCalls := make([]ToolCall, len(r.Message.ToolCalls))
+	toolCalls := make([]ToolCall, len(tc))
-	for i, tc := range r.Message.ToolCalls {
+	for i, tc := range tc {
 		toolCalls[i].ID = toolCallId()
 		toolCalls[i].Type = "function"
 		toolCalls[i].Function.Name = tc.Function.Name
+		toolCalls[i].Index = tc.Function.Index
 
 		args, err := json.Marshal(tc.Function.Arguments)
 		if err != nil {
@@ -215,7 +217,11 @@ func toChatCompletion(id string, r api.ChatResponse) ChatCompletion {
 
 		toolCalls[i].Function.Arguments = string(args)
 	}
+	return toolCalls
+}
 
+func toChatCompletion(id string, r api.ChatResponse) ChatCompletion {
+	toolCalls := toToolCalls(r.Message.ToolCalls)
 	return ChatCompletion{
 		Id:                id,
 		Object:            "chat.completion",
@@ -244,6 +250,7 @@ func toChatCompletion(id string, r api.ChatResponse) ChatCompletion {
 }
 
 func toChunk(id string, r api.ChatResponse) ChatCompletionChunk {
+	toolCalls := toToolCalls(r.Message.ToolCalls)
 	return ChatCompletionChunk{
 		Id:                id,
 		Object:            "chat.completion.chunk",
@@ -252,7 +259,7 @@ func toChunk(id string, r api.ChatResponse) ChatCompletionChunk {
 		SystemFingerprint: "fp_ollama",
 		Choices: []ChunkChoice{{
 			Index: 0,
-			Delta: Message{Role: "assistant", Content: r.Message.Content},
+			Delta: Message{Role: "assistant", Content: r.Message.Content, ToolCalls: toolCalls},
 			FinishReason: func(reason string) *string {
 				if len(reason) > 0 {
 					return &reason

openai/openai_test.go

@@ -195,7 +195,86 @@ func TestChatMiddleware(t *testing.T) {
 				Stream: &False,
 			},
 		},
-
+		{
+			name: "chat handler with streaming tools",
+			body: `{
+				"model": "test-model",
+				"messages": [
+					{"role": "user", "content": "What's the weather like in Paris?"}
+				],
+				"stream": true,
+				"tools": [{
+					"type": "function",
+					"function": {
+						"name": "get_weather",
+						"description": "Get the current weather",
+						"parameters": {
+							"type": "object",
+							"required": ["location"],
+							"properties": {
+								"location": {
+									"type": "string",
+									"description": "The city and state"
+								},
+								"unit": {
+									"type": "string",
+									"enum": ["celsius", "fahrenheit"]
+								}
+							}
+						}
+					}
+				}]
+			}`,
+			req: api.ChatRequest{
+				Model: "test-model",
+				Messages: []api.Message{
+					{
+						Role:    "user",
+						Content: "What's the weather like in Paris?",
+					},
+				},
+				Tools: []api.Tool{
+					{
+						Type: "function",
+						Function: api.ToolFunction{
+							Name:        "get_weather",
+							Description: "Get the current weather",
+							Parameters: struct {
+								Type       string   `json:"type"`
+								Required   []string `json:"required"`
+								Properties map[string]struct {
+									Type        string   `json:"type"`
+									Description string   `json:"description"`
+									Enum        []string `json:"enum,omitempty"`
+								} `json:"properties"`
+							}{
+								Type:     "object",
+								Required: []string{"location"},
+								Properties: map[string]struct {
+									Type        string   `json:"type"`
+									Description string   `json:"description"`
+									Enum        []string `json:"enum,omitempty"`
+								}{
+									"location": {
+										Type:        "string",
+										Description: "The city and state",
+									},
+									"unit": {
+										Type: "string",
+										Enum: []string{"celsius", "fahrenheit"},
+									},
+								},
+							},
+						},
+					},
+				},
+				Options: map[string]any{
+					"temperature": 1.0,
+					"top_p":       1.0,
+				},
+				Stream: &True,
+			},
+		},
 		{
 			name: "chat handler error forwarding",
 			body: `{

server/model_test.go

@@ -39,6 +39,7 @@ func TestExecuteWithTools(t *testing.T) {
 		{"mistral", `[TOOL_CALLS]  [{"name": "get_current_weather", "arguments": {"format":"fahrenheit","location":"San Francisco, CA"}},{"name": "get_current_weather", "arguments": {"format":"celsius","location":"Toronto, Canada"}}]
 
 The temperature in San Francisco, CA is 70°F and in Toronto, Canada is 20°C.`, true},
+		{"mistral", `[TOOL_CALLS]  [{"name": "get_current_weather", "arguments": {"format":"fahrenheit","location":"San Francisco, CA"}},{"name": "get_current_weather", "arguments": {"format":"celsius","location":"Toronto, Canada"}},{"name": "get_current_weather", "arguments": {"format":"celsius","location":"To }]`, false},
 		{"mistral", `I'm not aware of that information. However, I can suggest searching for the weather using the "get_current_weather" function:
 
 		[{"name": "get_current_weather", "arguments": {"format":"fahrenheit","location":"San Francisco, CA"}},{"name": "get_current_weather", "arguments": {"format":"celsius","location":"Toronto, Canada"}}]`, true},

server/routes.go

@@ -1458,6 +1458,7 @@ func (s *Server) ChatHandler(c *gin.Context) {
 
 	prompt, images, err := chatPrompt(c.Request.Context(), m, r.Tokenize, opts, msgs, req.Tools)
 	if err != nil {
+		slog.Error("chat prompt error", "error", err)
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
@@ -1467,6 +1468,8 @@ func (s *Server) ChatHandler(c *gin.Context) {
 	ch := make(chan any)
 	go func() {
 		defer close(ch)
+		var sb strings.Builder
+		var toolCallIndex int = 0
 		if err := r.Completion(c.Request.Context(), llm.CompletionRequest{
 			Prompt:  prompt,
 			Images:  images,
@@ -1492,7 +1495,37 @@ func (s *Server) ChatHandler(c *gin.Context) {
 				res.LoadDuration = checkpointLoaded.Sub(checkpointStart)
 			}
 
-			ch <- res
+			// TODO: tool call checking and filtering should be moved outside of this callback once streaming
+			// however this was a simple change for now without reworking streaming logic of this (and other)
+			// handlers
+			if req.Stream != nil && !*req.Stream || len(req.Tools) == 0 {
+				ch <- res
+				return
+			}
+
+			// Streaming tool calls:
+			// If tools are recognized, use a flag to track the sending of a tool downstream
+			// This ensures that content is cleared from the message on the last chunk sent
+			sb.WriteString(r.Content)
+			if toolCalls, ok := m.parseToolCalls(sb.String()); ok {
+				res.Message.ToolCalls = toolCalls
+				for i := range toolCalls {
+					toolCalls[i].Function.Index = toolCallIndex
+					toolCallIndex++
+				}
+				res.Message.Content = ""
+				sb.Reset()
+				ch <- res
+				return
+			}
+
+			if r.Done {
+				// Send any remaining content if no tool calls were detected
+				if toolCallIndex == 0 {
+					res.Message.Content = sb.String()
+				}
+				ch <- res
+			}
 		}); err != nil {
 			ch <- gin.H{"error": err.Error()}
 		}

server/routes_generate_test.go

@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"strings"
+	"sync"
 	"testing"
 	"time"
 
@@ -25,10 +26,14 @@ type mockRunner struct {
 	// CompletionRequest is only valid until the next call to Completion
 	llm.CompletionRequest
 	llm.CompletionResponse
+	CompletionFn func(context.Context, llm.CompletionRequest, func(llm.CompletionResponse)) error
 }
 
-func (m *mockRunner) Completion(_ context.Context, r llm.CompletionRequest, fn func(r llm.CompletionResponse)) error {
+func (m *mockRunner) Completion(ctx context.Context, r llm.CompletionRequest, fn func(r llm.CompletionResponse)) error {
 	m.CompletionRequest = r
+	if m.CompletionFn != nil {
+		return m.CompletionFn(ctx, r, fn)
+	}
 	fn(m.CompletionResponse)
 	return nil
 }
@@ -88,9 +93,14 @@ func TestGenerateChat(t *testing.T) {
 		Model: "test",
 		Modelfile: fmt.Sprintf(`FROM %s
 		TEMPLATE """
-{{- if .System }}System: {{ .System }} {{ end }}
+{{- if .Tools }}
-{{- if .Prompt }}User: {{ .Prompt }} {{ end }}
+{{ .Tools }}
-{{- if .Response }}Assistant: {{ .Response }} {{ end }}"""
+{{ end }}
+{{- range .Messages }}
+{{- .Role }}: {{ .Content }}
+{{- range .ToolCalls }}{"name": "{{ .Function.Name }}", "arguments": {{ .Function.Arguments }}}
+{{- end }}
+{{ end }}"""
 `, createBinFile(t, llm.KV{
 			"general.architecture":          "llama",
 			"llama.block_count":             uint32(1),
@@ -263,7 +273,7 @@ func TestGenerateChat(t *testing.T) {
 			t.Errorf("expected status 200, got %d", w.Code)
 		}
 
-		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "User: Hello! "); diff != "" {
+		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "user: Hello!\n"); diff != "" {
 			t.Errorf("mismatch (-got +want):\n%s", diff)
 		}
 
@@ -292,7 +302,7 @@ func TestGenerateChat(t *testing.T) {
 			t.Errorf("expected status 200, got %d", w.Code)
 		}
 
-		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You are a helpful assistant. User: Hello! "); diff != "" {
+		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "system: You are a helpful assistant.\nuser: Hello!\n"); diff != "" {
 			t.Errorf("mismatch (-got +want):\n%s", diff)
 		}
 
@@ -314,7 +324,7 @@ func TestGenerateChat(t *testing.T) {
 			t.Errorf("expected status 200, got %d", w.Code)
 		}
 
-		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You can perform magic tricks. User: Hello! "); diff != "" {
+		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "system: You can perform magic tricks.\nuser: Hello!\n"); diff != "" {
 			t.Errorf("mismatch (-got +want):\n%s", diff)
 		}
 
@@ -337,12 +347,242 @@ func TestGenerateChat(t *testing.T) {
 			t.Errorf("expected status 200, got %d", w.Code)
 		}
 
-		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "System: You are a helpful assistant. User: Hello! Assistant: I can help you with that. System: You can perform magic tricks. User: Help me write tests. "); diff != "" {
+		if diff := cmp.Diff(mock.CompletionRequest.Prompt, "system: You are a helpful assistant.\nuser: Hello!\nassistant: I can help you with that.\nsystem: You can perform magic tricks.\nuser: Help me write tests.\n"); diff != "" {
 			t.Errorf("mismatch (-got +want):\n%s", diff)
 		}
 
 		checkChatResponse(t, w.Body, "test-system", "Abra kadabra!")
 	})
+
+	t.Run("messages with tools (non-streaming)", func(t *testing.T) {
+		if w.Code != http.StatusOK {
+			t.Fatalf("failed to create test-system model: %d", w.Code)
+		}
+
+		tools := []api.Tool{
+			{
+				Type: "function",
+				Function: api.ToolFunction{
+					Name:        "get_weather",
+					Description: "Get the current weather",
+					Parameters: struct {
+						Type       string   `json:"type"`
+						Required   []string `json:"required"`
+						Properties map[string]struct {
+							Type        string   `json:"type"`
+							Description string   `json:"description"`
+							Enum        []string `json:"enum,omitempty"`
+						} `json:"properties"`
+					}{
+						Type:     "object",
+						Required: []string{"location"},
+						Properties: map[string]struct {
+							Type        string   `json:"type"`
+							Description string   `json:"description"`
+							Enum        []string `json:"enum,omitempty"`
+						}{
+							"location": {
+								Type:        "string",
+								Description: "The city and state",
+							},
+							"unit": {
+								Type: "string",
+								Enum: []string{"celsius", "fahrenheit"},
+							},
+						},
+					},
+				},
+			},
+		}
+
+		mock.CompletionResponse = llm.CompletionResponse{
+			Content:            `{"name":"get_weather","arguments":{"location":"Seattle, WA","unit":"celsius"}}`,
+			Done:               true,
+			DoneReason:         "done",
+			PromptEvalCount:    1,
+			PromptEvalDuration: 1,
+			EvalCount:          1,
+			EvalDuration:       1,
+		}
+
+		streamRequest := true
+
+		w := createRequest(t, s.ChatHandler, api.ChatRequest{
+			Model: "test-system",
+			Messages: []api.Message{
+				{Role: "user", Content: "What's the weather in Seattle?"},
+			},
+			Tools:  tools,
+			Stream: &streamRequest,
+		})
+
+		if w.Code != http.StatusOK {
+			var errResp struct {
+				Error string `json:"error"`
+			}
+			if err := json.NewDecoder(w.Body).Decode(&errResp); err != nil {
+				t.Logf("Failed to decode error response: %v", err)
+			} else {
+				t.Logf("Error response: %s", errResp.Error)
+			}
+		}
+
+		if w.Code != http.StatusOK {
+			t.Errorf("expected status 200, got %d", w.Code)
+		}
+
+		var resp api.ChatResponse
+		if err := json.NewDecoder(w.Body).Decode(&resp); err != nil {
+			t.Fatal(err)
+		}
+
+		if resp.Message.ToolCalls == nil {
+			t.Error("expected tool calls, got nil")
+		}
+
+		expectedToolCall := api.ToolCall{
+			Function: api.ToolCallFunction{
+				Name: "get_weather",
+				Arguments: api.ToolCallFunctionArguments{
+					"location": "Seattle, WA",
+					"unit":     "celsius",
+				},
+			},
+		}
+
+		if diff := cmp.Diff(resp.Message.ToolCalls[0], expectedToolCall); diff != "" {
+			t.Errorf("tool call mismatch (-got +want):\n%s", diff)
+		}
+	})
+
+	t.Run("messages with tools (streaming)", func(t *testing.T) {
+		tools := []api.Tool{
+			{
+				Type: "function",
+				Function: api.ToolFunction{
+					Name:        "get_weather",
+					Description: "Get the current weather",
+					Parameters: struct {
+						Type       string   `json:"type"`
+						Required   []string `json:"required"`
+						Properties map[string]struct {
+							Type        string   `json:"type"`
+							Description string   `json:"description"`
+							Enum        []string `json:"enum,omitempty"`
+						} `json:"properties"`
+					}{
+						Type:     "object",
+						Required: []string{"location"},
+						Properties: map[string]struct {
+							Type        string   `json:"type"`
+							Description string   `json:"description"`
+							Enum        []string `json:"enum,omitempty"`
+						}{
+							"location": {
+								Type:        "string",
+								Description: "The city and state",
+							},
+							"unit": {
+								Type: "string",
+								Enum: []string{"celsius", "fahrenheit"},
+							},
+						},
+					},
+				},
+			},
+		}
+
+		// Simulate streaming response with multiple chunks
+		var wg sync.WaitGroup
+		wg.Add(1)
+
+		mock.CompletionFn = func(ctx context.Context, r llm.CompletionRequest, fn func(r llm.CompletionResponse)) error {
+			defer wg.Done()
+
+			// Send chunks with small delays to simulate streaming
+			responses := []llm.CompletionResponse{
+				{
+					Content:            `{"name":"get_`,
+					Done:               false,
+					PromptEvalCount:    1,
+					PromptEvalDuration: 1,
+				},
+				{
+					Content:            `weather","arguments":{"location":"Seattle`,
+					Done:               false,
+					PromptEvalCount:    2,
+					PromptEvalDuration: 1,
+				},
+				{
+					Content:            `, WA","unit":"celsius"}}`,
+					Done:               true,
+					DoneReason:         "tool_call",
+					PromptEvalCount:    3,
+					PromptEvalDuration: 1,
+				},
+			}
+
+			for _, resp := range responses {
+				select {
+				case <-ctx.Done():
+					return ctx.Err()
+				default:
+					fn(resp)
+					time.Sleep(10 * time.Millisecond) // Small delay between chunks
+				}
+			}
+			return nil
+		}
+
+		w := createRequest(t, s.ChatHandler, api.ChatRequest{
+			Model: "test-system",
+			Messages: []api.Message{
+				{Role: "user", Content: "What's the weather in Seattle?"},
+			},
+			Tools:  tools,
+			Stream: &stream,
+		})
+
+		wg.Wait()
+
+		if w.Code != http.StatusOK {
+			t.Errorf("expected status 200, got %d", w.Code)
+		}
+
+		// Read and validate the streamed responses
+		decoder := json.NewDecoder(w.Body)
+		var finalToolCall api.ToolCall
+
+		for {
+			var resp api.ChatResponse
+			if err := decoder.Decode(&resp); err == io.EOF {
+				break
+			} else if err != nil {
+				t.Fatal(err)
+			}
+
+			if resp.Done {
+				if len(resp.Message.ToolCalls) != 1 {
+					t.Errorf("expected 1 tool call in final response, got %d", len(resp.Message.ToolCalls))
+				}
+				finalToolCall = resp.Message.ToolCalls[0]
+			}
+		}
+
+		expectedToolCall := api.ToolCall{
+			Function: api.ToolCallFunction{
+				Name: "get_weather",
+				Arguments: api.ToolCallFunctionArguments{
+					"location": "Seattle, WA",
+					"unit":     "celsius",
+				},
+			},
+		}
+
+		if diff := cmp.Diff(finalToolCall, expectedToolCall); diff != "" {
+			t.Errorf("final tool call mismatch (-got +want):\n%s", diff)
+		}
+	})
 }
 
 func TestGenerate(t *testing.T) {