Enum AgentModel 

pub enum AgentModel {
    Gpt56Sol,
    Gpt56Terra,
    Gpt56Luna,
    Gemini37Flash,
    Gemini35FlashLite,
    Gemini31Pro,
    Gpt53CodexSpark,
    ClaudeOpus5,
    ClaudeSonnet5,
    ClaudeFable5,
    ClaudeHaiku4520251001,
}

Supported agent model names across all providers.

Gemini model ids are shared by the direct Gemini and Antigravity providers, so provider ownership lives on AgentSelection rather than on these variants.

Variants

Gpt56Sol

Codex Sol model backed by gpt-5.6-sol.

Gpt56Terra

Codex Terra model backed by gpt-5.6-terra.

Gpt56Luna

Codex Luna model backed by gpt-5.6-luna.

Gemini37Flash

Fast Gemini model backed by gemini-3.7-flash.

Gemini35FlashLite

Lightweight Gemini model backed by gemini-3.5-flash-lite.

Gemini31Pro

Higher-quality Gemini preview model backed by gemini-3.1-pro-preview.

Gpt53CodexSpark

Codex spark model backed by gpt-5.3-codex-spark.

ClaudeOpus5

Claude Opus model backed by claude-opus-5.

ClaudeSonnet5

Claude Sonnet model backed by claude-sonnet-5.

ClaudeFable5

Claude Fable model backed by claude-fable-5.

ClaudeHaiku4520251001

Claude Haiku model backed by claude-haiku-4-5-20251001.

Implementations

impl AgentModel

pub fn as_str(self) -> &'static str

Returns the stable wire/model identifier used in persistence and CLI invocations.

pub fn provider_model_str(self) -> &'static str

Returns the model identifier passed to provider transports.

Antigravity and Gemini use the same raw Gemini CLI model ids; callers route those ids through the provider stored on AgentSelection.

pub fn parse_persisted(value: &str) -> Result<Self, String>

Parses one persisted model identifier and upgrades retired ids to their replacement models.

Stored retired Gemini, Claude, and Codex ids are migrated forward through AgentModel::retired_replacement so existing projects and sessions continue loading after model retirements. Raw gemini-* ids parse to shared Gemini model variants; persisted session agents decide whether Gemini or Antigravity owns the session.

Errors

Returns an error when value is not a known current or retired model identifier.

pub fn retired_replacement(value: &str) -> Option<Self>

Returns the current replacement model for a retired persisted model id, or None when value is not a retired id.

This registry is the single source of truth for model retirement. Retiring a model means removing its selectable AgentModel variant and mapping its persisted id to the replacement model here. Retired ids never appear in selectable model lists; they stay in the database as history for finished sessions, while sessions that are still active are switched to the replacement automatically.

Trait Implementations

impl AgentSelectionMetadata for AgentModel

fn name(&self) -> &'static str

Returns a stable item name shown in menus.

fn description(&self) -> &'static str

Returns a short descriptive subtitle shown in menus.

impl Clone for AgentModel

fn clone(&self) -> AgentModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AgentModel

impl Debug for AgentModel

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

Formats the value using the given formatter.

impl Eq for AgentModel

impl FromStr for AgentModel

type Err = String

The associated error which can be returned from parsing.

fn from_str(value: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for AgentModel

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AgentModel