From 2c639431b1c460135005116be4ddc81205281133 Mon Sep 17 00:00:00 2001
From: Grace <88872231+gr4ceG@users.noreply.github.com>
Date: Mon, 15 Dec 2025 14:50:52 -0800
Subject: [PATCH] DeepseekV3 family renderer (#13180)
---
model/renderers/deepseek3.go | 121 ++++++++
model/renderers/deepseek3_test.go | 492 ++++++++++++++++++++++++++++++
model/renderers/renderer.go | 3 +
3 files changed, 616 insertions(+)
create mode 100644 model/renderers/deepseek3.go
create mode 100644 model/renderers/deepseek3_test.go
diff --git a/model/renderers/deepseek3.go b/model/renderers/deepseek3.go
new file mode 100644
index 000000000..ec98574ed
--- /dev/null
+++ b/model/renderers/deepseek3.go
@@ -0,0 +1,121 @@
+package renderers
+
+import (
+ "encoding/json"
+ "strings"
+
+ "github.com/ollama/ollama/api"
+)
+
+type DeepSeek3Variant int
+
+const (
+ Deepseek31 DeepSeek3Variant = iota
+)
+
+type DeepSeek3Renderer struct {
+ IsThinking bool
+ Variant DeepSeek3Variant
+}
+
+func (r *DeepSeek3Renderer) Render(messages []api.Message, tools []api.Tool, thinkValue *api.ThinkValue) (string, error) {
+ var sb strings.Builder
+
+ // thinking is enabled: model must support it AND user must request it
+ thinking := r.IsThinking && (thinkValue != nil && thinkValue.Bool())
+
+ // extract system messages first
+ var systemPrompt strings.Builder
+ isFirstSystemPrompt := true
+
+ for _, message := range messages {
+ if message.Role == "system" {
+ if isFirstSystemPrompt {
+ systemPrompt.WriteString(message.Content)
+ isFirstSystemPrompt = false
+ } else {
+ systemPrompt.WriteString("\n\n" + message.Content)
+ }
+ }
+ }
+
+ sb.WriteString("<|begin▁of▁sentence|>" + systemPrompt.String())
+
+ // state tracking
+ isTool := false
+ isLastUser := false
+
+ for _, message := range messages {
+ switch message.Role {
+ case "user":
+ isTool = false
+ isLastUser = true
+ sb.WriteString("<|User|>" + message.Content)
+
+ case "assistant":
+ if len(message.ToolCalls) > 0 {
+ if isLastUser {
+ sb.WriteString("<|Assistant|>")
+ }
+ isLastUser = false
+ isTool = false
+
+ if message.Content != "" {
+ sb.WriteString(message.Content)
+ }
+
+ sb.WriteString("<|tool▁calls▁begin|>")
+ for _, toolCall := range message.ToolCalls {
+ sb.WriteString("<|tool▁call▁begin|>" + toolCall.Function.Name + "<|tool▁sep|>")
+
+ argsJSON, _ := json.Marshal(toolCall.Function.Arguments)
+ sb.WriteString(string(argsJSON))
+ sb.WriteString("<|tool▁call▁end|>")
+ }
+ sb.WriteString("<|tool▁calls▁end|><|end▁of▁sentence|>")
+ } else {
+ if isLastUser {
+ sb.WriteString("<|Assistant|>")
+ // message["prefix"] is defined and message["prefix"] and thinking
+ // message.Thinking != "" represents message["prefix"] being defined
+ if message.Thinking != "" && thinking {
+ sb.WriteString("")
+ } else {
+ sb.WriteString("")
+ }
+ }
+ isLastUser = false
+
+ content := message.Content
+ if isTool {
+ sb.WriteString(content + "<|end▁of▁sentence|>")
+ isTool = false
+ } else {
+ if strings.Contains(content, "") {
+ parts := strings.SplitN(content, "", 2)
+ if len(parts) > 1 {
+ content = parts[1]
+ }
+ }
+ sb.WriteString(content + "<|end▁of▁sentence|>")
+ }
+ }
+
+ case "tool":
+ isLastUser = false
+ isTool = true
+ sb.WriteString("<|tool▁output▁begin|>" + message.Content + "<|tool▁output▁end|>")
+ }
+ }
+
+ if isLastUser && !isTool {
+ sb.WriteString("<|Assistant|>")
+ if thinking {
+ sb.WriteString("")
+ } else {
+ sb.WriteString("")
+ }
+ }
+
+ return sb.String(), nil
+}
diff --git a/model/renderers/deepseek3_test.go b/model/renderers/deepseek3_test.go
new file mode 100644
index 000000000..e25bf624a
--- /dev/null
+++ b/model/renderers/deepseek3_test.go
@@ -0,0 +1,492 @@
+package renderers
+
+import (
+ "testing"
+
+ "github.com/google/go-cmp/cmp"
+
+ "github.com/ollama/ollama/api"
+)
+
+func TestDeepSeekRenderer(t *testing.T) {
+ tests := []struct {
+ name string
+ messages []api.Message
+ tools []api.Tool
+ thinkValue *api.ThinkValue
+ expected string
+ }{
+ {
+ name: "basic user message",
+ messages: []api.Message{
+ {Role: "user", Content: "Hello, how are you?"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Hello, how are you?<|Assistant|>`,
+ },
+ {
+ name: "basic with system message",
+ messages: []api.Message{
+ {Role: "system", Content: "You are a helpful assistant."},
+ {Role: "user", Content: "Hello, how are you?"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|>You are a helpful assistant.<|User|>Hello, how are you?<|Assistant|>`,
+ },
+ {
+ name: "multiple system messages",
+ messages: []api.Message{
+ {Role: "system", Content: "First instruction"},
+ {Role: "system", Content: "Second instruction"},
+ {Role: "user", Content: "Hello"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|>First instruction
+
+Second instruction<|User|>Hello<|Assistant|>`,
+ },
+ {
+ name: "thinking enabled",
+ messages: []api.Message{
+ {Role: "user", Content: "Hello, how are you?"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>Hello, how are you?<|Assistant|>`,
+ },
+ {
+ name: "thinking enabled with system",
+ messages: []api.Message{
+ {Role: "system", Content: "You are a helpful assistant."},
+ {Role: "user", Content: "Hello, how are you?"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|>You are a helpful assistant.<|User|>Hello, how are you?<|Assistant|>`,
+ },
+ {
+ name: "conversation with assistant response",
+ messages: []api.Message{
+ {Role: "user", Content: "What is the capital of France?"},
+ {Role: "assistant", Content: "The capital of France is Paris."},
+ {Role: "user", Content: "Fantastic!"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What is the capital of France?<|Assistant|>The capital of France is Paris.<|end▁of▁sentence|><|User|>Fantastic!<|Assistant|>`,
+ },
+ {
+ name: "assistant with tool calls",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather?"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather?<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|>`,
+ },
+ {
+ name: "assistant with content and tool calls",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather in Paris?"},
+ {
+ Role: "assistant",
+ Content: "I'll check the weather for you.",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather in Paris?<|Assistant|>I'll check the weather for you.<|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|>`,
+ },
+ {
+ name: "tool response",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather?"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Temperature: 22°C, Sunny"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather?<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Temperature: 22°C, Sunny<|tool▁output▁end|>`,
+ },
+ {
+ name: "multiple tool calls",
+ messages: []api.Message{
+ {Role: "user", Content: "Get weather for Paris and London"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "London",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Paris: 22°C, Sunny"},
+ {Role: "tool", Content: "London: 18°C, Cloudy"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Get weather for Paris and London<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"London"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Paris: 22°C, Sunny<|tool▁output▁end|><|tool▁output▁begin|>London: 18°C, Cloudy<|tool▁output▁end|>`,
+ },
+ {
+ name: "content with tag removal",
+ messages: []api.Message{
+ {Role: "user", Content: "Think about this"},
+ {Role: "assistant", Content: "I'm thinking about this.The answer is 42."},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Think about this<|Assistant|>The answer is 42.<|end▁of▁sentence|>`,
+ },
+ {
+ name: "empty system message",
+ messages: []api.Message{
+ {Role: "system", Content: ""},
+ {Role: "user", Content: "Hello"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Hello<|Assistant|>`,
+ },
+ {
+ name: "empty assistant content",
+ messages: []api.Message{
+ {Role: "user", Content: "Hello"},
+ {Role: "assistant", Content: ""},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Hello<|Assistant|><|end▁of▁sentence|>`,
+ },
+ {
+ name: "special characters",
+ messages: []api.Message{
+ {Role: "user", Content: "What about <|special|> tokens and \"quotes\"?"},
+ {Role: "assistant", Content: "They're handled normally."},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What about <|special|> tokens and "quotes"?<|Assistant|>They're handled normally.<|end▁of▁sentence|>`,
+ },
+ {
+ name: "tool calls with null content",
+ messages: []api.Message{
+ {Role: "user", Content: "Get weather"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Get weather<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|>`,
+ },
+ {
+ name: "assistant after tool context",
+ messages: []api.Message{
+ {Role: "user", Content: "Process data"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "process",
+ Arguments: api.ToolCallFunctionArguments{
+ "data": "test",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Success"},
+ {Role: "assistant", Content: "Done"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Process data<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>process<|tool▁sep|>{"data":"test"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Success<|tool▁output▁end|>Done<|end▁of▁sentence|>`,
+ },
+ {
+ name: "no messages",
+ messages: []api.Message{},
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|>`,
+ },
+ {
+ name: "only system messages",
+ messages: []api.Message{
+ {Role: "system", Content: "System instruction"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|>System instruction`,
+ },
+ {
+ name: "multiple think tags in content",
+ messages: []api.Message{
+ {Role: "user", Content: "Complex question"},
+ {Role: "assistant", Content: "First thoughtSecond thoughtFinal answer"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Complex question<|Assistant|>Second thoughtFinal answer<|end▁of▁sentence|>`,
+ },
+ {
+ name: "thinking enabled after tool call - should render thinking",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather in Paris?"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Temperature: 22°C, Sunny"},
+ {Role: "assistant", Content: "Based on the weather data, it's sunny in Paris."},
+ {Role: "user", Content: "Now tell me about London weather too."},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather in Paris?<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Temperature: 22°C, Sunny<|tool▁output▁end|>Based on the weather data, it's sunny in Paris.<|end▁of▁sentence|><|User|>Now tell me about London weather too.<|Assistant|>`,
+ },
+ {
+ name: "thinking disabled after tool call - should not render thinking",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather in Paris?"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Temperature: 22°C, Sunny"},
+ {Role: "assistant", Content: "Based on the weather data, it's sunny in Paris."},
+ {Role: "user", Content: "Now tell me about London weather too."},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather in Paris?<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Temperature: 22°C, Sunny<|tool▁output▁end|>Based on the weather data, it's sunny in Paris.<|end▁of▁sentence|><|User|>Now tell me about London weather too.<|Assistant|>`,
+ },
+ {
+ name: "thinking enabled but messages without thinking content",
+ messages: []api.Message{
+ {Role: "user", Content: "First question about cats"},
+ {Role: "assistant", Content: "Cats are wonderful pets."},
+ {Role: "user", Content: "What about dogs?"},
+ {Role: "assistant", Content: "Dogs are loyal companions."},
+ {Role: "user", Content: "Final question about birds"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>First question about cats<|Assistant|>Cats are wonderful pets.<|end▁of▁sentence|><|User|>What about dogs?<|Assistant|>Dogs are loyal companions.<|end▁of▁sentence|><|User|>Final question about birds<|Assistant|>`,
+ },
+ {
+ name: "thinking disabled for all assistant responses",
+ messages: []api.Message{
+ {Role: "user", Content: "First question about cats"},
+ {Role: "assistant", Content: "Cats are wonderful pets."},
+ {Role: "user", Content: "What about dogs?"},
+ {Role: "assistant", Content: "Dogs are loyal companions."},
+ {Role: "user", Content: "Final question about birds"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>First question about cats<|Assistant|>Cats are wonderful pets.<|end▁of▁sentence|><|User|>What about dogs?<|Assistant|>Dogs are loyal companions.<|end▁of▁sentence|><|User|>Final question about birds<|Assistant|>`,
+ },
+ {
+ name: "complex conversation with tool calls and thinking enabled",
+ messages: []api.Message{
+ {Role: "user", Content: "Tell me about the weather"},
+ {Role: "assistant", Content: "I'll check the weather for you."},
+ {Role: "user", Content: "Actually, get Paris weather specifically"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Paris: 22°C, Sunny"},
+ {Role: "assistant", Content: "The weather in Paris is great!"},
+ {Role: "user", Content: "What about the forecast for tomorrow?"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>Tell me about the weather<|Assistant|>I'll check the weather for you.<|end▁of▁sentence|><|User|>Actually, get Paris weather specifically<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Paris: 22°C, Sunny<|tool▁output▁end|>The weather in Paris is great!<|end▁of▁sentence|><|User|>What about the forecast for tomorrow?<|Assistant|>`,
+ },
+ {
+ name: "tool call without subsequent user message - no thinking",
+ messages: []api.Message{
+ {Role: "user", Content: "Get the weather"},
+ {
+ Role: "assistant",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Paris",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "22°C, Sunny"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>Get the weather<|Assistant|><|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Paris"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>22°C, Sunny<|tool▁output▁end|>`,
+ },
+ {
+ name: "messages with thinking content, no thinking in render",
+ messages: []api.Message{
+ {Role: "user", Content: "Solve this math problem: 15 * 23"},
+ {
+ Role: "assistant",
+ Content: "The answer is 345.",
+ Thinking: "Let me calculate 15 * 23. I can break this down: 15 * 20 = 300, and 15 * 3 = 45, so 300 + 45 = 345.",
+ },
+ {Role: "user", Content: "What about 12 * 34?"},
+ },
+ thinkValue: &api.ThinkValue{Value: false},
+ expected: `<|begin▁of▁sentence|><|User|>Solve this math problem: 15 * 23<|Assistant|>The answer is 345.<|end▁of▁sentence|><|User|>What about 12 * 34?<|Assistant|>`,
+ },
+ {
+ name: "conversation with mix of thinking and no thinking",
+ messages: []api.Message{
+ {Role: "user", Content: "Explain quantum physics"},
+ {
+ Role: "assistant",
+ Content: "Quantum physics is the study of matter and energy at the smallest scales.",
+ Thinking: "This is a complex topic. I should start with basic concepts and avoid overwhelming technical details.",
+ },
+ {Role: "user", Content: "What about photons?"},
+ {
+ Role: "assistant",
+ Content: "Photons are particles of light with no mass.",
+ },
+ {Role: "user", Content: "How do they interact with matter?"},
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>Explain quantum physics<|Assistant|>Quantum physics is the study of matter and energy at the smallest scales.<|end▁of▁sentence|><|User|>What about photons?<|Assistant|>Photons are particles of light with no mass.<|end▁of▁sentence|><|User|>How do they interact with matter?<|Assistant|>`,
+ },
+ {
+ name: "tool call with thinking content in response",
+ messages: []api.Message{
+ {Role: "user", Content: "What's the weather in Tokyo and New York?"},
+ {
+ Role: "assistant",
+ Content: "I'll check the weather for both cities.",
+ Thinking: "I need to call the weather API for two different cities. Let me make parallel calls.",
+ ToolCalls: []api.ToolCall{
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "Tokyo",
+ },
+ },
+ },
+ {
+ Function: api.ToolCallFunction{
+ Name: "get_weather",
+ Arguments: api.ToolCallFunctionArguments{
+ "location": "New York",
+ },
+ },
+ },
+ },
+ },
+ {Role: "tool", Content: "Tokyo: 18°C, Cloudy"},
+ {Role: "tool", Content: "New York: 22°C, Sunny"},
+ {
+ Role: "assistant",
+ Content: "Based on the weather data: Tokyo is cloudy at 18°C, while New York is sunny at 22°C.",
+ Thinking: "The data shows a nice contrast between the two cities. Tokyo is cooler and overcast while NYC has better weather.",
+ },
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>What's the weather in Tokyo and New York?<|Assistant|>I'll check the weather for both cities.<|tool▁calls▁begin|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"Tokyo"}<|tool▁call▁end|><|tool▁call▁begin|>get_weather<|tool▁sep|>{"location":"New York"}<|tool▁call▁end|><|tool▁calls▁end|><|end▁of▁sentence|><|tool▁output▁begin|>Tokyo: 18°C, Cloudy<|tool▁output▁end|><|tool▁output▁begin|>New York: 22°C, Sunny<|tool▁output▁end|>Based on the weather data: Tokyo is cloudy at 18°C, while New York is sunny at 22°C.<|end▁of▁sentence|>`,
+ },
+ {
+ name: "empty thinking field",
+ messages: []api.Message{
+ {Role: "user", Content: "Simple question"},
+ {
+ Role: "assistant",
+ Content: "Simple answer.",
+ Thinking: "", // Empty thinking content
+ },
+ },
+ thinkValue: &api.ThinkValue{Value: true},
+ expected: `<|begin▁of▁sentence|><|User|>Simple question<|Assistant|>Simple answer.<|end▁of▁sentence|>`,
+ },
+ }
+
+ renderer := &DeepSeek3Renderer{IsThinking: true, Variant: Deepseek31}
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ rendered, err := renderer.Render(tt.messages, tt.tools, tt.thinkValue)
+ if err != nil {
+ t.Fatalf("Render() error = %v", err)
+ }
+ if diff := cmp.Diff(tt.expected, rendered); diff != "" {
+ t.Errorf("Render() mismatch (-want +got):\n%s", diff)
+ }
+ })
+ }
+}
diff --git a/model/renderers/renderer.go b/model/renderers/renderer.go
index e3d797a62..d05182d94 100644
--- a/model/renderers/renderer.go
+++ b/model/renderers/renderer.go
@@ -59,6 +59,9 @@ func rendererForName(name string) Renderer {
case "cogito":
renderer := &CogitoRenderer{isThinking: true}
return renderer
+ case "deepseek-v3.1":
+ renderer := &DeepSeek3Renderer{IsThinking: true, Variant: Deepseek31}
+ return renderer
case "olmo3":
renderer := &Olmo3Renderer{UseExtendedSystemMessage: false}
return renderer