Struct ThinkingType 

pub struct ThinkingType {
    pub mode: ThinkingMode,
    pub clear_thinking: Option<bool>,
}

Controls thinking/reasoning capabilities in AI models.

This structure determines whether a model should engage in step-by-step reasoning when processing requests, and whether to preserve reasoning content across turns via clear_thinking. Thinking mode can improve accuracy for complex tasks but may increase response time and token usage.

Fields

• mode - Whether thinking is enabled or disabled
• clear_thinking - When false, preserves reasoning_content across turns (recommended for Coding / Agent scenarios)

Usage

let client = ChatCompletion::new(model, messages, api_key)
    .with_thinking(ThinkingType::enabled());

// Preserve reasoning content across turns (Coding / Agent)
let client = ChatCompletion::new(model, messages, api_key)
    .with_thinking(ThinkingType::enabled().with_clear_thinking(false));

Model Compatibility

Thinking capabilities are available only on models that implement the ThinkEnable trait, such as GLM-5.1, GLM-5, GLM-4.7, and GLM-4.5 series models.

Fields

mode: ThinkingMode

Whether thinking is enabled or disabled.

clear_thinking: Option<bool>

Whether to clear historical reasoning_content.

• true (default for standard API): Clears reasoning content each turn.
• false (recommended for Coding / Agent): Preserves reasoning content across turns, enabling better context for multi-step tool calls.

Implementations

impl ThinkingType

pub fn enabled() -> Self

Create a new thinking configuration with enabled mode.

pub fn disabled() -> Self

Create a new thinking configuration with disabled mode.

pub fn with_clear_thinking(self, clear: bool) -> Self

Set whether to clear historical reasoning content.

Use false for Coding / Agent scenarios where reasoning content should be preserved across turns.

Trait Implementations

impl Clone for ThinkingType

fn clone(&self) -> ThinkingType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThinkingType

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

Formats the value using the given formatter.

impl Serialize for ThinkingType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.