Enum ThinkMode 

pub enum ThinkMode {
    Default,
    NoThink,
    Think,
}

Thinking control (owner directive 2026-08-07: every supported model is a thinking model, one serve surface maps to each arch’s native mechanism).

• Default = the template’s OWN default, byte-identical to the pre-surface render: qwen class opens <think>\n (thinking ON), gemma4 renders the CLOSED thought channel (its enable_thinking | default(false)), hy3 renders reasoning_effort:no_think.
• NoThink = thinking OFF via the arch’s native off-switch: qwen enable_thinking=false (closed <think>\n\n</think>\n\n), gemma4 closed thought channel, hy3 no_think. On step35 — whose <think> tail is unconditional — it clamps to the lowest effort level instead (Reasoning: low).
• Think = thinking explicitly ON: qwen open <think>\n (same bytes as its default), gemma4 <|think|>\n injected into the system turn + an OPEN generation turn, hy3 an open <think:opensource> channel at the requested effort.

On templates with no switch at all the non-native direction is a graceful no-op.

Variants

Default

NoThink

Think

Trait Implementations

impl Clone for ThinkMode

fn clone(&self) -> ThinkMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ThinkMode

impl Debug for ThinkMode

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

Formats the value using the given formatter.

impl Eq for ThinkMode

impl PartialEq for ThinkMode

fn eq(&self, other: &ThinkMode) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ThinkMode