Feat (pull/18994): llama.cpp reasoning

bot.go

@@ -653,7 +653,6 @@ func sendMsgToLLM(body io.Reader) {
 				reasoningText := "<think>" + reasoningBuffer.String() + "</think>"
 				answerText = strings.ReplaceAll(reasoningText, "\n\n", "\n")
 				chunkChan <- answerText
-				reasoningSent = true
 			}
 			if chunk.Chunk != "" {
 				logger.Warn("text inside of finish llmchunk", "chunk", chunk, "counter", counter)

llm.go

@@ -237,8 +237,10 @@ func (op LCPChat) ParseChunk(data []byte) (*models.TextChunk, error) {
 		return &models.TextChunk{Finished: true}, nil
 	}
 
+	lastChoice := llmchunk.Choices[len(llmchunk.Choices)-1]
 	resp := &models.TextChunk{
-		Chunk: llmchunk.Choices[len(llmchunk.Choices)-1].Delta.Content,
+		Chunk:     lastChoice.Delta.Content,
+		Reasoning: lastChoice.Delta.ReasoningContent,
 	}
 
 	// Check for tool calls in all choices, not just the last one
@@ -256,7 +258,7 @@ func (op LCPChat) ParseChunk(data []byte) (*models.TextChunk, error) {
 		}
 	}
 
-	if llmchunk.Choices[len(llmchunk.Choices)-1].FinishReason == "stop" {
+	if lastChoice.FinishReason == "stop" {
 		if resp.Chunk != "" {
 			logger.Error("text inside of finish llmchunk", "chunk", llmchunk)
 		}

models/models.go

@@ -64,8 +64,9 @@ type LLMRespChunk struct {
 		FinishReason string `json:"finish_reason"`
 		Index        int    `json:"index"`
 		Delta        struct {
-			Content   string          `json:"content"`
-			ToolCalls []ToolDeltaResp `json:"tool_calls"`
+			Content          string          `json:"content"`
+			ReasoningContent string          `json:"reasoning_content"`
+			ToolCalls        []ToolDeltaResp `json:"tool_calls"`
 		} `json:"delta"`
 	} `json:"choices"`
 	Created int    `json:"created"`

props_table.go

@@ -149,6 +149,11 @@ func makePropsTable(props map[string]float32) *tview.Table {
 	addListPopupRow("Set log level", logLevels, GetLogLevel(), func(option string) {
 		setLogLevel(option)
 	})
+	// Add reasoning effort dropdown (for OpenRouter and supported APIs)
+	reasoningEfforts := []string{"", "none", "minimal", "low", "medium", "high", "xhigh"}
+	addListPopupRow("Reasoning effort (OR)", reasoningEfforts, cfg.ReasoningEffort, func(option string) {
+		cfg.ReasoningEffort = option
+	})
 	// Helper function to get model list for a given API
 	getModelListForAPI := func(api string) []string {
 		if strings.Contains(api, "api.deepseek.com/") {