Enum Model 

pub enum Model {
    Gemini37Flash,
    Gemini36Flash,
    Gemini35Flash,
    Gemini35FlashLite,
    Gemini31FlashLite,
    Gemini31Pro,
    Gemini31FlashImage,
    Gemini31FlashLiteImage,
    Gemini3ProImage,
    Gemini3Flash,
    GeminiOmniFlash,
    Gemini31FlashTts,
    Gemini3Pro,
    Gemini25Flash,
    Gemini25FlashLite,
    Gemini25FlashImage,
    Gemini25Pro,
    Gemini25FlashTts,
    Gemini25ProTts,
    Gemini25ComputerUse,
    GeminiEmbedding2,
    GeminiEmbedding001,
    TextEmbedding004,
    Custom(String),
}

Gemini API models.

The default is Gemini37Flash, the latest stable Flash model. Any model not listed here (e.g. gemini-flash-latest, preview or experimental releases) can be used via Model::Custom or a string literal.

Variants

Gemini37Flash

Latest stable Flash model and the library default.

Gemini36Flash

Gemini35Flash

Gemini35FlashLite

Gemini31FlashLite

Gemini31Pro

Current Pro model (preview).

Gemini31FlashImage

Image generation model, also known as Nano Banana 2.

Gemini31FlashLiteImage

Low-latency image generation model, also known as Nano Banana 2 Lite.

Gemini3ProImage

Pro image generation model, also known as Nano Banana Pro.

Gemini3Flash

GeminiOmniFlash

Video generation and editing model: turn text and images into video and refine results through natural language.

Gemini31FlashTts

Low-latency speech generation model (preview).

Gemini3Pro

👎Deprecated since 2.1.0:

gemini-3-pro-preview has been shut down; use Model::Gemini31Pro instead

Shut down by Google; fails for all requests.

Gemini25Flash

Previous generation; still served, but unavailable to newly created API keys.

Gemini25FlashLite

Gemini25FlashImage

Image generation model, also known as Nano Banana. Shutting down on October 2, 2026; use Model::Gemini31FlashImage instead.

Gemini25Pro

Gemini25FlashTts

Fast and controllable text-to-speech model (2.5 family).

Gemini25ProTts

High-fidelity speech synthesis model (2.5 family).

Gemini25ComputerUse

Computer use model that can “see” a digital screen and perform UI actions like clicking, typing, and navigating.

GeminiEmbedding2

Multimodal embedding model mapping text, images, video, audio, and PDFs into a unified embedding space.

GeminiEmbedding001

Text embedding model for semantic search, classification, and RAG.

TextEmbedding004

👎Deprecated since 2.1.0:

shut down on January 14, 2026; use Model::GeminiEmbedding2 instead

Custom(String)

Implementations

impl Model

pub fn as_str(&self) -> &str

Trait Implementations

impl Clone for Model

fn clone(&self) -> Model

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Model

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

Formats the value using the given formatter.

impl Default for Model

fn default() -> Model

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Model

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Model

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

Formats the value using the given formatter.

impl Eq for Model

impl From<String> for Model

fn from(model: String) -> Self

Converts to this type from the input type.

impl Hash for Model

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 Model

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Model

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 Model