Free
2,000 completions, 50 premium req/mo
From in-editor pair programmer to agentic coding platform.
The most widely deployed AI coding assistant. Inline completions, Chat, agent mode, an autonomous coding agent that opens PRs from issues, and agentic code review — integrated across VS Code, JetBrains, Visual Studio, Neovim, and Xcode. Multi-model: GPT-5.4, Claude Sonnet 4.6 and Opus 4.7, Gemini 2.5 Pro, and more.
2,000 completions, 50 premium req/mo
Unlimited completions, agent mode
Extended models, GitHub Spark
Team management, policy controls
SSO, audit, IP indemnity, custom models
GitHub Copilot is the most widely used AI coding tool, serving millions of developers across every major IDE. Originally launched as an autocomplete tool in 2021, it has grown into a full agentic platform with chat, agent mode, an autonomous coding agent, agentic code review, and natural-language app building via GitHub Spark.
Inline completions remain context-aware across files, imports, and project conventions. Copilot Chat provides interactive AI assistance in-IDE and on GitHub.com. Agent mode — generally available on both VS Code and JetBrains since March 2026 — lets the agent edit multiple files, run commands, and iterate. The coding agent goes further: assign it a GitHub issue and it works asynchronously in a sandbox until a draft PR is ready. Multi-model access spans GPT-5.4, Claude Sonnet 4.6, Claude Opus 4.7, and Gemini 2.5 Pro.
• Inline completions: real-time ghost-text suggestions in every major IDE
• Copilot Chat: conversational assistance in-IDE and on GitHub.com
• Agent mode: multi-step task execution (VS Code + JetBrains)
• Coding agent: autonomous issue-to-PR worker that runs in a sandbox
• Agentic code review: gathers project context, can hand off fixes to the coding agent
• GitHub Spark: natural-language app builder (Pro+ and Enterprise)
• Multi-model: GPT-5.4, Claude Sonnet 4.6 and Opus 4.7, Gemini 2.5 Pro, and more
• Enterprise: SSO, policy controls, audit logs, IP indemnity, custom models
Copilot CLI reached General Availability (Feb 2026) with terminal-native agent workflows, specialized sub-agents (Explore, Task, Plan, Code-review), parallel execution, and MCP support. GPT-5.4 rolled out across all surfaces (Mar 2026). Copilot SDK launched in public preview for embedding Copilot's agent runtime into custom applications (Apr 2026).
Asynchronous coding agent promoted to General Availability for all paid subscribers. Agent takes GitHub issues, works autonomously in a secure cloud environment (GitHub Actions), and opens pull requests with the completed implementation.
Agent mode launched in VS Code preview: multi-file edits, terminal command execution, self-healing error fixing, and next edit suggestions. Copilot Edits reached GA. Gemini 2.0 Flash and OpenAI o3-mini added as selectable models.
Assign a GitHub issue to Copilot: it analyzes the repo, edits files on a branch, runs the test suite in a sandbox, and opens a draft PR with a written summary. Review, comment, and either merge or send it back for another pass. Vix is a Go-native, open-source (AGPL-3.0) AI coding agent that slashes token costs by 40-50% using a stem agent architecture and Tree-sitter virtual filesystem. It rethinks the plan/execute loop — keeping LLM cache warm across Explore, Plan, and Execute phases — while shipping Programmable Workflows, Whiteboard Mode with voice AI, MCP server support, and a self-evolving agent that writes its own scheduled jobs and watchers.
Orchestrate an entire AI dev team on 5GB VRAM using ephemeral subagents, exact-match diffs, and a zero-dependency Go binary. Works with any OpenAI-compatible model — local or cloud.
Paca is a free, open-source, self-hosted Scrum board where AI agents work as equal teammates — assigned to sprints, picking up tasks, and collaborating on BDD specs alongside humans. Built as an alternative to Jira and Linear, it treats AI agents as first-class Scrum members.