Struct Model 

pub struct Model;

Provider-agnostic model identifiers.

Constants are provided for well-known Claude models, but any string is accepted - custom AgentProvider implementations interpret the model identifier however they wish.

Examples

use ironflow_core::prelude::*;

let provider = ClaudeCodeProvider::new();

// Using a built-in constant
let r = Agent::new()
    .prompt("hi")
    .model(Model::SONNET)
    .run(&provider)
    .await?;

// Using a custom model string
let r = Agent::new()
    .prompt("hi")
    .model("mistral-large-latest")
    .run(&provider)
    .await?;

Implementations

impl Model

pub const SONNET: &str = "sonnet"

Claude Sonnet - balanced speed and capability (default).

pub const OPUS: &str = "opus"

Claude Opus - highest capability.

pub const HAIKU: &str = "haiku"

Claude Haiku - fastest and cheapest.

pub const HAIKU_45: &str = "claude-haiku-4-5-20251001"

Claude Haiku 4.5.

pub const SONNET_46: &str = "claude-sonnet-4-6"

Claude Sonnet 4.6.

pub const OPUS_46: &str = "claude-opus-4-6"

Claude Opus 4.6.

pub const SONNET_46_1M: &str = "claude-sonnet-4-6[1m]"

Claude Sonnet 4.6 with 1M token context window.

pub const OPUS_46_1M: &str = "claude-opus-4-6[1m]"

Claude Opus 4.6 with 1M token context window.

pub const OPUS_47: &str = "claude-opus-4-7"

Claude Opus 4.7 - previous flagship, 1M token context native.

pub const OPUS_47_1M: &str = "claude-opus-4-7[1m]"

Claude Opus 4.7 with 1M token context window explicit.

pub const OPUS_48: &str = "claude-opus-4-8"

Claude Opus 4.8 - previous Opus flagship, 1M token context native.

pub const OPUS_48_1M: &str = "claude-opus-4-8[1m]"

Claude Opus 4.8 with 1M token context window explicit.

pub const FABLE_5: &str = "claude-fable-5"

Claude Fable 5 - most capable widely released model, 1M token context native.

pub const MYTHOS_5: &str = "claude-mythos-5"

Claude Mythos 5 - Fable 5 capabilities, limited availability (Project Glasswing).

pub const OPUS_5: &str = "claude-opus-5"

Claude Opus 5 - current flagship for agentic coding, 1M token context native.

pub const OPUS_5_1M: &str = "claude-opus-5[1m]"

Claude Opus 5 with 1M token context window explicit.

pub const SONNET_5: &str = "claude-sonnet-5"

Claude Sonnet 5 - best speed/intelligence balance, 1M token context native.

pub const SONNET_5_1M: &str = "claude-sonnet-5[1m]"

Claude Sonnet 5 with 1M token context window explicit.