Struct LLMResponse 

pub struct LLMResponse {
    pub content: String,
    pub reasoning: Option<String>,
    pub model: String,
    pub usage: TokenUsage,
    pub tool_calls: Vec<ToolCall>,
    pub finish_reason: Option<String>,
    pub id: Option<String>,
    pub created: Option<u64>,
}

A chat completion response from an LLM provider.

Implements Default for forward-compatible struct-update syntax (LLMResponse { ..LLMResponse::default() }).

Fields

content: String

Generated text content.

reasoning: Option<String>

Reasoning model’s chain-of-thought (GLM-4.5+/z.ai, OpenAI o1, DeepSeek-R1).

When the provider leaves content empty and returns the final answer in reasoning_content, the client promotes the reasoning into content and still preserves the original here. None for non-reasoning models and for cache entries written before this field existed (serde default).

model: String

Model that produced this response.

usage: TokenUsage

Token usage statistics.

tool_calls: Vec<ToolCall>

Tool calls the model requested this turn.

Empty unless the request supplied LLMRequest::tools and the model chose to call one. Each entry carries the provider-assigned call id, tool name, and JSON-encoded arguments.

finish_reason: Option<String>

Reason the generation stopped (e.g. "stop", "length", "tool_calls").

id: Option<String>

Provider-assigned response ID (useful for logging and deduplication).

created: Option<u64>

Unix timestamp (seconds) when the response was created.

Trait Implementations

impl Clone for LLMResponse

fn clone(&self) -> LLMResponse

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LLMResponse

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LLMResponse

fn default() -> LLMResponse

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LLMResponse

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for LLMResponse

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.