linter

model/parsers/intellect3.go

@@ -0,0 +1,44 @@
+package parsers
+
+import (
+	"github.com/ollama/ollama/api"
+	"github.com/ollama/ollama/thinking"
+)
+
+// Intellect3Parser combines thinking support using
+// the built-in thinking parser, with tool call support
+// via qwen3-coder's parser.
+type Intellect3Parser struct {
+	thinkingParser thinking.Parser
+	toolParser     Qwen3CoderParser
+}
+
+func (p *Intellect3Parser) HasToolSupport() bool {
+	return true
+}
+
+func (p *Intellect3Parser) HasThinkingSupport() bool {
+	return true
+}
+
+func (p *Intellect3Parser) Init(tools []api.Tool, lastMessage *api.Message, thinkValue *api.ThinkValue) []api.Tool {
+	p.thinkingParser = thinking.Parser{
+		OpeningTag: "<think>",
+		ClosingTag: "</think>",
+	}
+	p.toolParser = Qwen3CoderParser{}
+	return p.toolParser.Init(tools, lastMessage, thinkValue)
+}
+
+func (p *Intellect3Parser) Add(s string, done bool) (content string, thinking string, calls []api.ToolCall, err error) {
+	// First extract thinking content
+	thinkingContent, remainingContent := p.thinkingParser.AddContent(s)
+
+	// Then process the remaining content for tool calls
+	toolContent, _, toolCalls, err := p.toolParser.Add(remainingContent, done)
+	if err != nil {
+		return "", thinkingContent, nil, err
+	}
+
+	return toolContent, thinkingContent, toolCalls, nil
+}

model/parsers/intellect3_test.go

@@ -0,0 +1,542 @@
+package parsers
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/ollama/ollama/api"
+)
+
+func TestIntellect3ParserThinkingOnly(t *testing.T) {
+	cases := []struct {
+		desc      string
+		chunks    []string
+		wantText  string
+		wantThink string
+	}{
+		{
+			desc:      "simple thinking content",
+			chunks:    []string{"<think>I need to analyze this</think>Here is my response"},
+			wantText:  "Here is my response",
+			wantThink: "I need to analyze this",
+		},
+		{
+			desc:      "thinking with whitespace",
+			chunks:    []string{"<think>\n  Some thoughts  \n</think>\n\nContent"},
+			wantText:  "Content",
+			wantThink: "Some thoughts  \n", // Thinking parser preserves internal whitespace
+		},
+		{
+			desc:      "thinking only",
+			chunks:    []string{"<think>Just thinking</think>"},
+			wantText:  "",
+			wantThink: "Just thinking",
+		},
+		{
+			desc:      "no thinking tags",
+			chunks:    []string{"Just regular content"},
+			wantText:  "Just regular content",
+			wantThink: "",
+		},
+		{
+			desc:      "streaming thinking content",
+			chunks:    []string{"<think>Fir", "st part", " second part</think>Content"},
+			wantText:  "Content",
+			wantThink: "First part second part",
+		},
+		{
+			desc:      "partial opening tag",
+			chunks:    []string{"<thi", "nk>Thinking</think>Content"},
+			wantText:  "Content",
+			wantThink: "Thinking",
+		},
+		{
+			desc:      "partial closing tag",
+			chunks:    []string{"<think>Thinking</thi", "nk>Content"},
+			wantText:  "Content",
+			wantThink: "Thinking",
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.desc, func(t *testing.T) {
+			parser := Intellect3Parser{}
+			parser.Init(nil, nil, nil)
+
+			var gotText, gotThink string
+			for i, chunk := range tc.chunks {
+				isLast := i == len(tc.chunks)-1
+				text, think, calls, err := parser.Add(chunk, isLast)
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				gotText += text
+				gotThink += think
+				if len(calls) > 0 {
+					t.Fatalf("expected no tool calls, got %v", calls)
+				}
+			}
+
+			if gotText != tc.wantText {
+				t.Errorf("content: got %q, want %q", gotText, tc.wantText)
+			}
+			if gotThink != tc.wantThink {
+				t.Errorf("thinking: got %q, want %q", gotThink, tc.wantThink)
+			}
+		})
+	}
+}
+
+func TestIntellect3ParserToolCallsOnly(t *testing.T) {
+	tools := []api.Tool{
+		tool("get_weather", map[string]api.ToolProperty{
+			"location": {Type: api.PropertyType{"string"}},
+			"unit":     {Type: api.PropertyType{"string"}},
+		}),
+	}
+
+	cases := []struct {
+		desc      string
+		chunks    []string
+		wantText  string
+		wantCalls []api.ToolCall
+	}{
+		{
+			desc: "simple tool call",
+			chunks: []string{
+				"Let me check the weather<tool_call><function=get_weather>\n<parameter=location>\nSan Francisco\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>",
+			},
+			wantText: "Let me check the weather",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "San Francisco",
+							"unit":     "celsius",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc: "tool call streaming",
+			chunks: []string{
+				"Checking<tool_call><function=get_wea",
+				"ther>\n<parameter=location>\nNew York\n</param", //nolint:all
+				"eter>\n<parameter=unit>\nfahrenheit\n</parameter>\n</function></tool_call>Done",
+			},
+			wantText: "CheckingDone",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "New York",
+							"unit":     "fahrenheit",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc: "multiple tool calls",
+			chunks: []string{
+				"<tool_call><function=get_weather>\n<parameter=location>\nBoston\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>",
+				"<tool_call><function=get_weather>\n<parameter=location>\nSeattle\n</parameter>\n<parameter=unit>\nfahrenheit\n</parameter>\n</function></tool_call>",
+			},
+			wantText: "",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Boston",
+							"unit":     "celsius",
+						},
+					},
+				},
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Seattle",
+							"unit":     "fahrenheit",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc:      "no tool calls",
+			chunks:    []string{"Just regular content"},
+			wantText:  "Just regular content",
+			wantCalls: nil,
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.desc, func(t *testing.T) {
+			parser := Intellect3Parser{}
+			parser.Init(tools, nil, nil)
+
+			var gotText string
+			var gotCalls []api.ToolCall
+			for i, chunk := range tc.chunks {
+				isLast := i == len(tc.chunks)-1
+				text, think, calls, err := parser.Add(chunk, isLast)
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				gotText += text
+				gotCalls = append(gotCalls, calls...)
+				if think != "" {
+					t.Fatalf("expected no thinking, got %q", think)
+				}
+			}
+
+			if gotText != tc.wantText {
+				t.Errorf("content: got %q, want %q", gotText, tc.wantText)
+			}
+			if !reflect.DeepEqual(gotCalls, tc.wantCalls) {
+				t.Errorf("tool calls: got %#v, want %#v", gotCalls, tc.wantCalls)
+			}
+		})
+	}
+}
+
+func TestIntellect3ParserCombined(t *testing.T) {
+	tools := []api.Tool{
+		tool("get_weather", map[string]api.ToolProperty{
+			"location": {Type: api.PropertyType{"string"}},
+			"unit":     {Type: api.PropertyType{"string"}},
+		}),
+	}
+
+	cases := []struct {
+		desc      string
+		chunks    []string
+		wantText  string
+		wantThink string
+		wantCalls []api.ToolCall
+	}{
+		{
+			desc: "thinking then tool call",
+			chunks: []string{
+				"<think>Need to get weather data</think>Let me check<tool_call><function=get_weather>\n<parameter=location>\nParis\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>",
+			},
+			wantText:  "Let me check",
+			wantThink: "Need to get weather data",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Paris",
+							"unit":     "celsius",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc: "thinking, tool call, and final content",
+			chunks: []string{
+				"<think>User wants weather info</think>Checking weather<tool_call><function=get_weather>\n<parameter=location>\nTokyo\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>Done!",
+			},
+			wantText:  "Checking weatherDone!",
+			wantThink: "User wants weather info",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Tokyo",
+							"unit":     "celsius",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc: "streaming combined content",
+			chunks: []string{
+				"<think>Analyzing",
+				" the request</think>",
+				"Let me help<tool_call>",
+				"<function=get_weather>\n<parameter=location>\nLondon",
+				"\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function>",
+				"</tool_call>There you go!",
+			},
+			wantText:  "Let me helpThere you go!",
+			wantThink: "Analyzing the request",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "London",
+							"unit":     "celsius",
+						},
+					},
+				},
+			},
+		},
+		{
+			desc: "multiple tool calls with thinking",
+			chunks: []string{
+				"<think>Need multiple locations</think>",
+				"<tool_call><function=get_weather>\n<parameter=location>\nBoston\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>",
+				"and<tool_call><function=get_weather>\n<parameter=location>\nBerlin\n</parameter>\n<parameter=unit>\ncelsius\n</parameter>\n</function></tool_call>",
+			},
+			wantText:  "and",
+			wantThink: "Need multiple locations",
+			wantCalls: []api.ToolCall{
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Boston",
+							"unit":     "celsius",
+						},
+					},
+				},
+				{
+					Function: api.ToolCallFunction{
+						Name: "get_weather",
+						Arguments: map[string]any{
+							"location": "Berlin",
+							"unit":     "celsius",
+						},
+					},
+				},
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.desc, func(t *testing.T) {
+			parser := Intellect3Parser{}
+			parser.Init(tools, nil, nil)
+
+			var gotText, gotThink string
+			var gotCalls []api.ToolCall
+			for i, chunk := range tc.chunks {
+				isLast := i == len(tc.chunks)-1
+				text, think, calls, err := parser.Add(chunk, isLast)
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				gotText += text
+				gotThink += think
+				gotCalls = append(gotCalls, calls...)
+			}
+
+			if gotText != tc.wantText {
+				t.Errorf("content: got %q, want %q", gotText, tc.wantText)
+			}
+			if gotThink != tc.wantThink {
+				t.Errorf("thinking: got %q, want %q", gotThink, tc.wantThink)
+			}
+			if !reflect.DeepEqual(gotCalls, tc.wantCalls) {
+				t.Errorf("tool calls: got %#v, want %#v", gotCalls, tc.wantCalls)
+			}
+		})
+	}
+}
+
+func TestIntellect3ParserEdgeCases(t *testing.T) {
+	tools := []api.Tool{
+		tool("test_func", map[string]api.ToolProperty{
+			"param": {Type: api.PropertyType{"string"}},
+		}),
+	}
+
+	cases := []struct {
+		desc      string
+		chunks    []string
+		wantText  string
+		wantThink string
+		wantCalls int
+	}{
+		{
+			desc:      "empty input",
+			chunks:    []string{""},
+			wantText:  "",
+			wantThink: "",
+			wantCalls: 0,
+		},
+		{
+			desc:      "only whitespace",
+			chunks:    []string{"   \n  \t  "},
+			wantText:  "",
+			wantThink: "",
+			wantCalls: 0,
+		},
+		{
+			desc:      "unclosed thinking tag",
+			chunks:    []string{"<think>Never closes"},
+			wantText:  "",
+			wantThink: "Never closes",
+			wantCalls: 0,
+		},
+		{
+			desc:      "unclosed tool call tag",
+			chunks:    []string{"<tool_call><function=test_func>\n<parameter=param>\nvalue\n</parameter>\n</function>"},
+			wantText:  "", // Qwen3CoderParser waits for closing tag, doesn't emit partial tool calls
+			wantThink: "",
+			wantCalls: 0, // Won't be parsed until </tool_call> is seen
+		},
+		{
+			desc:      "unicode in thinking",
+			chunks:    []string{"<think>思考中 🤔</think>答案是 42"},
+			wantText:  "答案是 42",
+			wantThink: "思考中 🤔",
+			wantCalls: 0,
+		},
+		{
+			desc:      "fake thinking tag",
+			chunks:    []string{"<thinking>This is not the right tag</thinking>Content"},
+			wantText:  "<thinking>This is not the right tag</thinking>Content",
+			wantThink: "",
+			wantCalls: 0,
+		},
+		{
+			desc:      "fake tool call tag",
+			chunks:    []string{"<tool>Not a tool call</tool>"},
+			wantText:  "<tool>Not a tool call</tool>",
+			wantThink: "",
+			wantCalls: 0,
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.desc, func(t *testing.T) {
+			parser := Intellect3Parser{}
+			parser.Init(tools, nil, nil)
+
+			var gotText, gotThink string
+			var gotCalls []api.ToolCall
+			for i, chunk := range tc.chunks {
+				isLast := i == len(tc.chunks)-1
+				text, think, calls, err := parser.Add(chunk, isLast)
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				gotText += text
+				gotThink += think
+				gotCalls = append(gotCalls, calls...)
+			}
+
+			if gotText != tc.wantText {
+				t.Errorf("content: got %q, want %q", gotText, tc.wantText)
+			}
+			if gotThink != tc.wantThink {
+				t.Errorf("thinking: got %q, want %q", gotThink, tc.wantThink)
+			}
+			if len(gotCalls) != tc.wantCalls {
+				t.Errorf("tool calls count: got %d, want %d", len(gotCalls), tc.wantCalls)
+			}
+		})
+	}
+}
+
+func TestIntellect3ParserCapabilities(t *testing.T) {
+	parser := Intellect3Parser{}
+
+	if !parser.HasToolSupport() {
+		t.Error("Intellect3Parser should have tool support")
+	}
+
+	if !parser.HasThinkingSupport() {
+		t.Error("Intellect3Parser should have thinking support")
+	}
+}
+
+func TestIntellect3ParserInit(t *testing.T) {
+	parser := Intellect3Parser{}
+
+	tools := []api.Tool{
+		tool("test", map[string]api.ToolProperty{
+			"param": {Type: api.PropertyType{"string"}},
+		}),
+	}
+
+	returnedTools := parser.Init(tools, nil, nil)
+
+	// Should return tools unchanged (delegated to Qwen3CoderParser)
+	if !reflect.DeepEqual(returnedTools, tools) {
+		t.Errorf("Init should return tools unchanged")
+	}
+}
+
+func TestIntellect3ParserWhitespaceHandling(t *testing.T) {
+	tools := []api.Tool{
+		tool("test", map[string]api.ToolProperty{
+			"param": {Type: api.PropertyType{"string"}},
+		}),
+	}
+
+	cases := []struct {
+		desc      string
+		chunks    []string
+		wantText  string
+		wantThink string
+	}{
+		{
+			desc:      "whitespace between thinking and content",
+			chunks:    []string{"<think>Thinking</think>\n\n\nContent"},
+			wantText:  "Content",
+			wantThink: "Thinking",
+		},
+		{
+			desc:      "whitespace inside thinking tags",
+			chunks:    []string{"<think>  \n  Thinking  \n  </think>Content"},
+			wantText:  "Content",
+			wantThink: "Thinking  \n  ", // Thinking parser preserves internal whitespace
+		},
+		{
+			desc:      "leading whitespace before thinking",
+			chunks:    []string{"   <think>Thinking</think>Content"},
+			wantText:  "Content",
+			wantThink: "Thinking",
+		},
+		{
+			desc:      "whitespace before tool call",
+			chunks:    []string{"Text   <tool_call><function=test>\n<parameter=param>\nvalue\n</parameter>\n</function></tool_call>"},
+			wantText:  "Text",
+			wantThink: "",
+		},
+		{
+			desc:      "whitespace after tool call",
+			chunks:    []string{"<tool_call><function=test>\n<parameter=param>\nvalue\n</parameter>\n</function></tool_call>   Text"},
+			wantText:  "Text",
+			wantThink: "",
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.desc, func(t *testing.T) {
+			parser := Intellect3Parser{}
+			parser.Init(tools, nil, nil)
+
+			var gotText, gotThink string
+			for i, chunk := range tc.chunks {
+				isLast := i == len(tc.chunks)-1
+				text, think, _, err := parser.Add(chunk, isLast)
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				gotText += text
+				gotThink += think
+			}
+
+			if gotText != tc.wantText {
+				t.Errorf("content: got %q, want %q", gotText, tc.wantText)
+			}
+			if gotThink != tc.wantThink {
+				t.Errorf("thinking: got %q, want %q", gotThink, tc.wantThink)
+			}
+		})
+	}
+}

model/parsers/parsers.go

@@ -54,6 +54,8 @@ func ParserForName(name string) Parser {
 		return harmony.NewHarmonyMessageHandler()
 	case "cogito":
 		return &CogitoParser{}
+	case "intellect-3":
+		return &Intellect3Parser{}
 	default:
 		return nil
 	}

model/renderers/intellect3.go

@@ -0,0 +1,158 @@
+package renderers
+
+import (
+	"strings"
+
+	"github.com/ollama/ollama/api"
+)
+
+const intellect3DefaultSystemMessage = "You are INTELLECT-3, a helpful assistant developed by Prime Intellect, that can interact with a computer to solve tasks."
+
+type Intellect3Renderer struct{}
+
+func (r *Intellect3Renderer) Render(messages []api.Message, tools []api.Tool, think *api.ThinkValue) (string, error) {
+	var sb strings.Builder
+
+	// filter out system messages and choose the first (if any) to win
+	var systemMessage string
+	var filteredMessages []api.Message
+	for _, message := range messages {
+		if message.Role != "system" {
+			filteredMessages = append(filteredMessages, message)
+			continue
+		}
+
+		if systemMessage == "" {
+			systemMessage = message.Content
+		}
+	}
+
+	if systemMessage != "" || len(tools) > 0 {
+		sb.WriteString(imStartTag + "system\n")
+
+		// Use default system message when tools present but no user system message
+		if systemMessage == "" && len(tools) > 0 {
+			systemMessage = intellect3DefaultSystemMessage
+		}
+
+		sb.WriteString(systemMessage)
+
+		if len(tools) > 0 {
+			sb.WriteString("\n\n# Tools\n\nYou have access to the following functions:\n\n")
+			sb.WriteString("<tools>")
+			for _, tool := range tools {
+				sb.WriteString("\n")
+				sb.WriteString("<function>\n")
+				sb.WriteString("<name>" + tool.Function.Name + "</name>")
+				if tool.Function.Description != "" {
+					sb.WriteString("\n<description>" + tool.Function.Description + "</description>")
+				}
+				sb.WriteString("\n<parameters>")
+
+				for name, prop := range tool.Function.Parameters.Properties {
+					sb.WriteString("\n<parameter>")
+					sb.WriteString("\n<name>" + name + "</name>")
+
+					if len(prop.Type) > 0 {
+						sb.WriteString("\n<type>" + formatToolDefinitionType(prop.Type) + "</type>")
+					}
+
+					if prop.Description != "" {
+						sb.WriteString("\n<description>" + prop.Description + "</description>")
+					}
+
+					// Render any additional keys not already handled
+					handledKeys := map[string]bool{
+						"type":        true,
+						"description": true,
+					}
+					sb.WriteString(renderAdditionalKeys(prop, handledKeys))
+
+					sb.WriteString("\n</parameter>")
+				}
+
+				// Render extra keys for parameters (everything except 'type' and 'properties')
+				paramHandledKeys := map[string]bool{
+					"type":       true,
+					"properties": true,
+				}
+				sb.WriteString(renderAdditionalKeys(tool.Function.Parameters, paramHandledKeys))
+
+				sb.WriteString("\n</parameters>")
+				sb.WriteString("\n</function>")
+			}
+			sb.WriteString("\n</tools>")
+			sb.WriteString("\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>")
+		}
+
+		sb.WriteString(imEndTag + "\n")
+	}
+
+	for i, message := range filteredMessages {
+		lastMessage := i == len(filteredMessages)-1
+		prefill := lastMessage && message.Role == "assistant"
+		switch message.Role {
+		case "assistant":
+			if len(message.ToolCalls) > 0 {
+				sb.WriteString(imStartTag + "assistant\n")
+
+				// Add thinking tags if present
+				if message.Thinking != "" {
+					sb.WriteString("<think>" + strings.TrimSpace(message.Thinking) + "</think>\n")
+				}
+
+				if message.Content != "" {
+					sb.WriteString(strings.TrimSpace(message.Content) + "\n")
+				}
+
+				for _, toolCall := range message.ToolCalls {
+					sb.WriteString("\n<tool_call>\n<function=" + toolCall.Function.Name + ">")
+					for name, value := range toolCall.Function.Arguments {
+						valueStr := formatToolCallArgument(value)
+						sb.WriteString("\n<parameter=" + name + ">\n" + valueStr + "\n</parameter>")
+					}
+					sb.WriteString("\n</function>\n</tool_call>")
+				}
+				sb.WriteString("<|im_end|>\n")
+			} else {
+				sb.WriteString(imStartTag + "assistant\n")
+
+				// Add thinking tags if present
+				if message.Thinking != "" {
+					sb.WriteString("<think>" + strings.TrimSpace(message.Thinking) + "</think>\n")
+				}
+
+				// Add content if present
+				if message.Content != "" {
+					sb.WriteString(message.Content)
+				}
+
+				if !prefill {
+					sb.WriteString(imEndTag + "\n")
+				}
+			}
+		case "tool":
+			if i == 0 || filteredMessages[i-1].Role != "tool" {
+				sb.WriteString(imStartTag + "user\n")
+			}
+
+			sb.WriteString("<tool_response>\n")
+			sb.WriteString(message.Content)
+			sb.WriteString("\n</tool_response>\n")
+
+			if i == len(filteredMessages)-1 || filteredMessages[i+1].Role != "tool" {
+				sb.WriteString(imEndTag + "\n")
+			}
+		default:
+			sb.WriteString(imStartTag + message.Role + "\n")
+			sb.WriteString(message.Content)
+			sb.WriteString(imEndTag + "\n")
+		}
+
+		if lastMessage && !prefill {
+			sb.WriteString(imStartTag + "assistant\n<think>")
+		}
+	}
+
+	return sb.String(), nil
+}

model/renderers/intellect3_test.go

@@ -0,0 +1,218 @@
+package renderers
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+
+	"github.com/ollama/ollama/api"
+)
+
+func TestIntellect3Renderer(t *testing.T) {
+	tests := []struct {
+		name     string
+		msgs     []api.Message
+		tools    []api.Tool
+		expected string
+	}{
+		{
+			name: "basic user message",
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello!"},
+			},
+			expected: "<|im_start|>user\n" +
+				"Hello!<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"<think>",
+		},
+		{
+			name: "with system message",
+			msgs: []api.Message{
+				{Role: "system", Content: "You are helpful."},
+				{Role: "user", Content: "Hi"},
+			},
+			expected: "<|im_start|>system\n" +
+				"You are helpful.<|im_end|>\n" +
+				"<|im_start|>user\n" +
+				"Hi<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"<think>",
+		},
+		{
+			name: "multi-turn conversation",
+			msgs: []api.Message{
+				{Role: "user", Content: "Hello"},
+				{Role: "assistant", Content: "Hi!"},
+				{Role: "user", Content: "Bye"},
+			},
+			expected: "<|im_start|>user\n" +
+				"Hello<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"Hi!<|im_end|>\n" +
+				"<|im_start|>user\n" +
+				"Bye<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"<think>",
+		},
+		{
+			name: "with tools no system message",
+			msgs: []api.Message{
+				{Role: "user", Content: "Weather?"},
+			},
+			tools: []api.Tool{
+				{
+					Type: "function",
+					Function: api.ToolFunction{
+						Name:        "get_weather",
+						Description: "Get weather",
+						Parameters: api.ToolFunctionParameters{
+							Type: "object",
+							Properties: map[string]api.ToolProperty{
+								"location": {Type: api.PropertyType{"string"}},
+							},
+						},
+					},
+				},
+			},
+			expected: "<|im_start|>system\n" +
+				"You are INTELLECT-3, a helpful assistant developed by Prime Intellect, that can interact with a computer to solve tasks.\n\n" +
+				"# Tools\n\n" +
+				"You have access to the following functions:\n\n" +
+				"<tools>\n" +
+				"<function>\n" +
+				"<name>get_weather</name>\n" +
+				"<description>Get weather</description>\n" +
+				"<parameters>\n" +
+				"<parameter>\n" +
+				"<name>location</name>\n" +
+				"<type>string</type>\n" +
+				"</parameter>\n" +
+				"</parameters>\n" +
+				"</function>\n" +
+				"</tools>\n\n" +
+				"If you choose to call a function ONLY reply in the following format with NO suffix:\n\n" +
+				"<tool_call>\n" +
+				"<function=example_function_name>\n" +
+				"<parameter=example_parameter_1>\n" +
+				"value_1\n" +
+				"</parameter>\n" +
+				"<parameter=example_parameter_2>\n" +
+				"This is the value for the second parameter\n" +
+				"that can span\n" +
+				"multiple lines\n" +
+				"</parameter>\n" +
+				"</function>\n" +
+				"</tool_call>\n\n" +
+				"<IMPORTANT>\n" +
+				"Reminder:\n" +
+				"- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n" +
+				"- Required parameters MUST be specified\n" +
+				"- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n" +
+				"- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n" +
+				"</IMPORTANT><|im_end|>\n" +
+				"<|im_start|>user\n" +
+				"Weather?<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"<think>",
+		},
+		{
+			name: "tool call and response",
+			msgs: []api.Message{
+				{Role: "user", Content: "Weather?"},
+				{
+					Role:    "assistant",
+					Content: "Checking.",
+					ToolCalls: []api.ToolCall{
+						{
+							ID: "1",
+							Function: api.ToolCallFunction{
+								Name:      "get_weather",
+								Arguments: map[string]any{"location": "SF"},
+							},
+						},
+					},
+				},
+				{Role: "tool", Content: `{"temp": 68}`, ToolCallID: "1"},
+			},
+			tools: []api.Tool{
+				{
+					Type: "function",
+					Function: api.ToolFunction{
+						Name: "get_weather",
+						Parameters: api.ToolFunctionParameters{
+							Type: "object",
+							Properties: map[string]api.ToolProperty{
+								"location": {Type: api.PropertyType{"string"}},
+							},
+						},
+					},
+				},
+			},
+			expected: "<|im_start|>system\n" +
+				"You are INTELLECT-3, a helpful assistant developed by Prime Intellect, that can interact with a computer to solve tasks.\n\n" +
+				"# Tools\n\n" +
+				"You have access to the following functions:\n\n" +
+				"<tools>\n" +
+				"<function>\n" +
+				"<name>get_weather</name>\n" +
+				"<parameters>\n" +
+				"<parameter>\n" +
+				"<name>location</name>\n" +
+				"<type>string</type>\n" +
+				"</parameter>\n" +
+				"</parameters>\n" +
+				"</function>\n" +
+				"</tools>\n\n" +
+				"If you choose to call a function ONLY reply in the following format with NO suffix:\n\n" +
+				"<tool_call>\n" +
+				"<function=example_function_name>\n" +
+				"<parameter=example_parameter_1>\n" +
+				"value_1\n" +
+				"</parameter>\n" +
+				"<parameter=example_parameter_2>\n" +
+				"This is the value for the second parameter\n" +
+				"that can span\n" +
+				"multiple lines\n" +
+				"</parameter>\n" +
+				"</function>\n" +
+				"</tool_call>\n\n" +
+				"<IMPORTANT>\n" +
+				"Reminder:\n" +
+				"- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n" +
+				"- Required parameters MUST be specified\n" +
+				"- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n" +
+				"- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n" +
+				"</IMPORTANT><|im_end|>\n" +
+				"<|im_start|>user\n" +
+				"Weather?<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"Checking.\n\n" +
+				"<tool_call>\n" +
+				"<function=get_weather>\n" +
+				"<parameter=location>\n" +
+				"SF\n" +
+				"</parameter>\n" +
+				"</function>\n" +
+				"</tool_call><|im_end|>\n" +
+				"<|im_start|>user\n" +
+				"<tool_response>\n" +
+				`{"temp": 68}` + "\n" +
+				"</tool_response>\n" +
+				"<|im_end|>\n" +
+				"<|im_start|>assistant\n" +
+				"<think>",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			rendered, err := (&Intellect3Renderer{}).Render(tt.msgs, tt.tools, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if diff := cmp.Diff(rendered, tt.expected); diff != "" {
+				t.Errorf("mismatch (-got +want):\n%s", diff)
+			}
+		})
+	}
+}

model/renderers/renderer.go

@@ -59,6 +59,9 @@ func rendererForName(name string) Renderer {
 	case "cogito":
 		renderer := &CogitoRenderer{isThinking: true}
 		return renderer
+	case "intellect-3":
+		renderer := &Intellect3Renderer{}
+		return renderer
 	default:
 		return nil
 	}