AI Coding Tools Directory

Aider

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Open-source AI pair programming in your terminal with automatic git commits

Aider (v0.85.4) is a powerful open-source AI pair programming tool that runs entirely in your terminal. It excels at making real-world changes to codebases, automatically creating git commits with descriptive messages. Aider works with all major AI models including GPT-5, Claude 4 Opus, Claude 4 Sonnet, Claude 3.7 Sonnet, DeepSeek R1, GPT-4o, and local models, making it budget-friendly and flexible. The framework works best with models like Claude 3.7 Sonnet, DeepSeek R1, and GPT-4o. Perfect for developers who prefer terminal-based workflows, Aider can edit multiple files simultaneously and understands your entire project structure.

Amazon Q Developer

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AWS-optimized AI code generator with security scanning and CLI completions

Amazon Q Developer (formerly CodeWhisperer) is AWS's AI-powered coding assistant optimized for Amazon Web Services development. Note: As of November 24, 2025, Q Developer CLI is being rebranded to 'Kiro CLI'. The service now features autonomous agents for multi-step tasks, advanced conversational AI for AWS resource management, and enhanced cost management capabilities. With project-wide context analysis, sophisticated code transformations (like Java 8 to Java 17 migration), AWS API optimization, security vulnerability scanning, and CLI completions, it's perfect for cloud developers working in the AWS ecosystem. Free for individuals with an AWS account.

Claude Haiku 4.5

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Fast and affordable coding model

Released October 15, 2025, Claude Haiku 4.5 is Anthropic's latest small model that delivers similar coding performance to Sonnet 4 at a third of the cost and more than twice the speed. This generation of Haiku is the first to include features previously exclusive to higher-tier models, including extended thinking capabilities, computer use, and enhanced context awareness.

Claude Sonnet 4.5

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The best coding model in the world

Released September 29, 2025, Claude Sonnet 4.5 is the best coding model in the world, achieving 77.2% on SWE-Bench Verified benchmark, outperforming competitors like GPT-5. It's the strongest model for building complex agents and the best model at using computers. Features extended thinking mode for complex problem-solving and is Anthropic's most aligned frontier model for safety. Shows substantial gains in reasoning and math.

AutoGen

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Microsoft's multi-agent conversation framework for complex AI workflows

AutoGen is Microsoft's open-source framework for building multi-agent AI systems. Version 0.4 (early 2025) introduced a major architectural redesign with an event-driven foundation, segmenting the framework into distinct components: AutoGen-Core, AgentChat, AutoGen-Extensions, and a rebuilt low-code AutoGen Studio. It enables specialized agents to collaborate on complex tasks through async conversations with human-in-the-loop capabilities. Features superior scalability, observability, and cross-language support for Python and .NET.

Bolt.new

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Build and deploy full-stack applications in minutes with AI from StackBlitz

Bolt.new by StackBlitz is an open-source, AI-powered development environment that creates complete full-stack applications from natural language prompts. Built on StackBlitz's WebContainers technology, it runs a full-stack environment including Node.js servers and package managers directly in the browser. Can now handle projects 1,000 times larger than before. Bolt Cloud provides enterprise-grade backend infrastructure. Bolt can build and deploy production-ready apps in 8-10 minutes with full control over generated code, real-time preview, and instant deployment.

Anthropic Claude API

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Access Claude Opus 4.5, Sonnet 4.5, and more with 200K+ context window

The Anthropic Claude API provides access to Claude's family of models, including Claude Opus 4.5 (launched November 24, 2025) and ultra-fast Sonnet 4.5. November 2025 updates introduced major API features: Programmatic Tool Calling and Tool Search to reduce token consumption, an 'effort' parameter to balance cost and performance, and guaranteed structured outputs in JSON format. With a massive 200K+ token context window and industry-leading reasoning capabilities, Claude excels at complex tasks like code analysis, document processing, and agentic workflows. Opus 4.5 leads SWE-bench Verified. Known for strong coding performance and safety, Claude is trusted by enterprises and developers worldwide.

Claude Code

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Official CLI from Anthropic for terminal-based AI coding with Claude Opus 4.5

Claude Code is Anthropic's official command-line interface that brings Claude's powerful AI capabilities directly to your terminal. Integrated into Anthropic's Pro, Max, and Team subscription plans, it utilizes both Sonnet 4.5 and Opus 4.5 models. Key workflow features include providing project-specific context via a CLAUDE.md file and triggering extended thinking mode for complex problem-solving. Claude Code excels at understanding entire codebases, performing complex multi-file refactoring, and executing tasks autonomously with human oversight. The Opus 4.5 model delivers 65% fewer tokens for long-horizon tasks and 30-minute autonomous coding sessions.

Claude Opus 4.5

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Anthropic's most powerful AI model with state-of-the-art coding and agentic capabilities

Claude Opus 4.5 is Anthropic's flagship AI model, released November 24, 2025. It delivers state-of-the-art performance on coding benchmarks, leading SWE-bench Verified and outperforming all frontier models. With the new effort parameter, developers can customize the balance between speed and capability. The model features context compaction for longer-running agentic sessions, using up to 65% fewer tokens for long-horizon coding tasks. Opus 4.5 is the most robustly aligned model to date, with industry-leading resistance to prompt injection attacks.

Codeium (Now Windsurf)

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Free AI code completion - Note: Rebranded to Windsurf in April 2025

**Note: Codeium has been rebranded to Windsurf (April 2025) and was subsequently acquired by Cognition AI (July 2025). See our Windsurf listing for the latest information.** Codeium was a free AI-powered code completion tool that offered unlimited completions for individual developers. Supporting 70+ programming languages and 40+ IDEs, it provided fast, accurate AI suggestions powered by in-house models. The product has evolved into Windsurf, which includes the Cascade agentic chat feature and support for frontier models like Claude Opus 4.5, Gemini 3 Pro, and GPT-5.1.

Amazon CodeWhisperer (Merged)

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AWS AI coding companion - Now Amazon Q Developer

Amazon CodeWhisperer has been fully merged into Amazon Q Developer as of April 30, 2024. It is no longer a standalone product. All features, including real-time code suggestions, security scanning, and reference tracking, are now available within the Amazon Q Developer experience. Please refer to the Amazon Q Developer entry for current information.

Cody

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Enterprise AI assistant with codebase-wide context and zero data retention

Cody by Sourcegraph is an enterprise-focused AI coding assistant that understands your entire codebase. With multi-repo context awareness, BYOK (Bring Your Own Key) support, and SOC 2 compliance, Cody is designed for large organizations with strict security requirements. It offers zero data retention and works across multiple repositories, making it ideal for enterprises managing complex, multi-project environments.