Enum QuantType 

pub enum QuantType {
    F32,
    F16,
    BF16,
    Q8_0,
    Q8_K,
    Q6_K,
    Q5_K_S,
    Q5_K_M,
    Q5_0,
    Q5_1,
    Q4_K_S,
    Q4_K_M,
    Q4_0,
    Q4_1,
    Q3_K_S,
    Q3_K_M,
    Q3_K_L,
    Q2_K_S,
    Q2_K,
    IQ4_NL,
    IQ4_XS,
    IQ3_S,
    IQ3_M,
    IQ3_XS,
    IQ3_XXS,
    IQ2_S,
    IQ2_XS,
    IQ2_XXS,
    IQ1_S,
    IQ1_M,
}

Common quantization types (GGUF spec naming convention)

Variants

F32

Full precision (FP32)

F16

Half precision (FP16)

BF16

Brain floating point (BF16)

Q8_0

8-bit integer

Q8_K

8-bit with K-quants

Q6_K

6-bit K-quants

Q5_K_S

5-bit K-quants (small)

Q5_K_M

5-bit K-quants (medium)

Q5_0

5-bit (legacy)

Q5_1

5-bit with 1 (legacy)

Q4_K_S

4-bit K-quants (small)

Q4_K_M

4-bit K-quants (medium)

Q4_0

4-bit (legacy)

Q4_1

4-bit with 1 (legacy)

Q3_K_S

3-bit K-quants (small)

Q3_K_M

3-bit K-quants (medium)

Q3_K_L

3-bit K-quants (large)

Q2_K_S

2-bit K-quants (small)

Q2_K

2-bit K-quants

IQ4_NL

Importance-weighted 4-bit (non-linear)

IQ4_XS

Importance-weighted 4-bit (extra small)

IQ3_S

Importance-weighted 3-bit (small)

IQ3_M

Importance-weighted 3-bit (medium)

IQ3_XS

Importance-weighted 3-bit (extra small)

IQ3_XXS

Importance-weighted 3-bit (extra extra small)

IQ2_S

Importance-weighted 2-bit (small)

IQ2_XS

Importance-weighted 2-bit (extra small)

IQ2_XXS

Importance-weighted 2-bit (extra extra small)

IQ1_S

Importance-weighted 1-bit (small)

IQ1_M

Importance-weighted 1-bit (medium)

Implementations

impl QuantType

pub fn from_str(s: &str) -> Option<Self>

Parse quantization type from string

pub const fn bits_per_weight(&self) -> f32

Get bits per weight

pub fn estimate_size(&self, parameters: u64) -> u64

Estimate file size for given parameter count

pub const fn quality_tier(&self) -> u8

Get quality tier (1-5, higher is better quality)

pub fn vram_requirement(&self, parameters: u64) -> f64

Get recommended VRAM in GB for given parameter count

Trait Implementations

impl Clone for QuantType

fn clone(&self) -> QuantType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QuantType

impl Debug for QuantType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QuantType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for QuantType

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

Formats the value using the given formatter.

impl Eq for QuantType

impl Hash for QuantType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for QuantType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for QuantType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for QuantType