ai-lib v0.3.4

Highlights:

• Provider Failover Support: v0.3.x introduced AiClient::with_failover(Vec<Provider>). In 1.0+, compose the same behavior via RoutingStrategyBuilder (see below).
• Major Provider Expansion: Added 6 new AI providers including OpenRouter, Replicate, ZhipuAI, MiniMax, Perplexity, and AI21
• Enhanced Multimodal Content: Convenient Content::from_image_file() and Content::from_audio_file() methods for automatic file processing
• New Import System: Complete module tree restructuring with prelude for better ergonomics and explicit top-level exports
• Documentation Improvements: Comprehensive module tree guide and updated examples using latest library standards

New Features

Provider Failover / Strategy Builders

use ai_lib::prelude::*;
use ai_lib::provider::{RoutingStrategyBuilder, GroqBuilder, AnthropicBuilder, OpenAiBuilder};

let strategy = RoutingStrategyBuilder::new()
    .with_provider(GroqBuilder::new().build_provider()?)
    .with_provider(AnthropicBuilder::new().build_provider()?)
    .build_failover()?;

let client = OpenAiBuilder::new()
    .with_strategy(Box::new(strategy))
    .build()?;

Multimodal Content Creation

use ai_lib::prelude::*;

// Image content from file
let image_content = Content::from_image_file("path/to/image.png");

// Audio content from file
let audio_content = Content::from_audio_file("path/to/audio.mp3");

// Mixed content message
let messages = vec![
    Message {
        role: Role::User,
        content: Content::new_text("Analyze this image"),
        function_call: None,
    },
    Message {
        role: Role::User,
        content: image_content,
        function_call: None,
    },
];

New Import Patterns

// Recommended for applications
use ai_lib::prelude::*;

// Explicit control
use ai_lib::{AiClient, Provider, Content, Message, Role};

New Providers

• OpenRouter (OpenAI-compatible): Unified gateway for multiple AI models
• Replicate (OpenAI-compatible): Access to various AI models
• ZhipuAI (OpenAI-compatible): GLM series models from China
• MiniMax (OpenAI-compatible): AI models from China
• Perplexity (Independent): Search-enhanced AI with custom API
• AI21 (Independent): Jurassic series models

Breaking Changes

• Moved Usage and UsageStatus: Now in types::response module (deprecated aliases in types::common will be removed before 1.0)
• provider::utils module: Now internal (pub(crate)) - use public Content methods instead

Migration Guide

Usage and UsageStatus

// Old (deprecated)
use ai_lib::types::common::{Usage, UsageStatus};

// New (recommended)
use ai_lib::{Usage, UsageStatus};
// or
use ai_lib::types::response::{Usage, UsageStatus};

Provider Utils

// Old (no longer available)
use ai_lib::provider::utils::upload_file_with_transport;

// New (use Content methods)
let content = Content::from_image_file("path/to/image.png");

Upgrade

[dependencies]
ai-lib = "0.3.4"

Documentation

• Module Tree and Import Patterns - Complete guide to the new import system
• Application Import Patterns - Recommended patterns for different use cases
• API Reference - Complete API documentation

Compatibility

• Additive release: No breaking changes for existing code using public APIs
• Deprecation timeline: Deprecated items will be removed before 1.0
• Migration support: Comprehensive migration guide and examples provided