9 Best AI Coding Assistants of 2026

GitHub Copilot ranks first because it adds AI to the editor you already use rather than asking you to switch. The plans page lists extensions for VS Code, Visual Studio, Xcode, JetBrains IDEs, Neovim, Eclipse, Zed and SQL Server Management Studio, which no other product here matches. The Free plan gives 2,000 completions a month and limited chat and agent usage. Pro at $10 per user per month adds unlimited completions and next edit suggestions, Copilot in the cloud, code review, model selection and access to the Claude Code and Codex agents, with $15 of monthly credits for agent and chat work. Pro+ at $39 raises included usage and unlocks premium models such as Opus, and Max at $100 targets sustained agent workloads. The trade-off is metering: completions are unlimited on paid plans, but agent sessions consume credits, so developers who lean on long agent runs should watch usage. For completion and chat inside an existing editor, it is the best value we found.

Cursor is the strongest pick for developers who are ready to move into a dedicated AI editor. Its agent can plan, search and build across a project, and from Premium it can hand work to cloud agents that build and test features on their own machines, review pull requests through Bugbot and run automations. The same agent runs in a CLI, in Slack and in GitHub reviews. Pricing has changed shape: plans now combine Cursor with Grok and X features, and the cheapest paid tier, Plus at $8 a month, includes Grok models only. Premium at $30 adds cloud agents and code review, but third-party models such as Claude or GPT are charged separately at API list price rather than drawn from the plan's pool. Usage refreshes weekly, and a privacy mode guarantees code data is not used for training. Feature depth is the highest here; value depends on which models you want.

Claude Code is an agent rather than an autocomplete tool, and that is how it should be judged. It reads a repository, edits files, runs commands and reports back, and Anthropic offers it in the terminal, in VS Code and JetBrains extensions, on the web, on iOS and Android and in Slack. It comes with Claude Pro, which costs $17 a month on annual billing or $20 month to month, so the same subscription covers general Claude chat. Pro usage resets every 5 hours and every week, which suits focused sessions; Max at $100 gives five times Pro usage and $100 a month in API credits, and Ultra at $200 removes the 5-hour limit. Teams can buy the Team plan at $20 per seat on annual billing. The gaps for this list's angle are that the free plan does not list Claude Code and there is no inline tab completion, so many developers pair it with Copilot or an editor's own completions.

Devin Desktop is the new name for Windsurf, and Cognition says plans, pricing, extensions and settings carry over as an over-the-air update. The editor still offers unlimited Tab completions and inline edits on every plan, which makes the Free tier unusually generous for completion-focused developers. Pro at $20 a month adds larger quotas, frontier models from OpenAI, Anthropic, Google and SpaceXAI, free use of the in-house SWE-2 model and Devin Cloud agents. The interface now puts an agent command center first, with Spaces, a Kanban board and multi-agent management, while the full IDE stays available. Developers on IntelliJ IDEA, PyCharm or WebStorm can keep using Windsurf for JetBrains. Teams cost $80 a month plus $40 per full seat for up to 200 users. The downsides are the rebrand, which splits documentation across two names, and a light agent quota on the free plan.

Codex is OpenAI's coding agent, and it comes with ChatGPT plans rather than as a separate product. The Free and Go tiers, at $0 and $8 a month, are listed for the desktop app with the GPT-6 Luna model. For this list's angle, the relevant tier is Plus at $20 a month, which adds Codex on the web, in the CLI, in the IDE extension and on iOS, plus cloud features such as automatic code review and Slack integration, with GPT-6.1 Sol and GPT-6 Luna. Pro plans run at $100, $200 or $500 a month for higher limits. Teams that automate in CI can instead sign in with an API key and pay API rates, though cloud features such as GitHub review are not available that way. One detail to plan for is that Codex shares usage with ChatGPT Work, so heavy chat use and heavy coding compete for the same allowance.

JetBrains AI is the natural choice for teams that live in IntelliJ IDEA, PyCharm, WebStorm or another JetBrains IDE. Every plan, including AI Free, includes unlimited AI completion inside the IDE, and AI Free adds 3 monthly AI credits for chat and agent work, though it is only available on commercial IDE versions. AI Pro raises that to 10 monthly credits and AI Ultimate to 35, and both give access to Junie, Claude Agent, Codex and Gemini as agents. Through the Agent Client Protocol you can also connect more than 25 outside agents, including Cursor, Codex and GitHub Copilot, or bring your own API keys from Anthropic, OpenAI and Google. Credits can be topped up at API rates and stay valid for 12 months. AI Pro has a 30-day free trial. We could not verify a USD price because the page showed euros from our location, so the price is marked pending.

Kiro takes a more structured approach than the other editors here. Instead of jumping from a prompt to code, it turns the request into requirements, an architectural design and a sequence of tasks, checks the requirements for contradictions, then implements them with parallel agents locally or in the cloud. Property-based tests assert rules across all inputs, which helps catch edge cases that ordinary unit tests pass. A headless CLI can run in CI/CD. The Free tier includes 50 credits a month with open weight models and Claude Sonnet 4.5; Pro is $20 per user per month for 1,000 credits, with Pro+, Pro Max and Power tiers above it and add-on credits at $0.04. Teams can pool credits at $20 per seat. AWS now directs Amazon Q Developer IDE plugin users to Kiro, since those plugins lose support on April 30, 2027. The spec workflow is slower for quick fixes.

Zed is an open source editor that treats AI as a core feature without forcing a subscription. The Personal plan is free forever and works with your own API keys or external agents such as Claude Agent, Codex CLI and OpenCode through the Agent Client Protocol. Pro at $10 a month adds Zed-hosted models, unlimited edit predictions from Zeta, its open-weight prediction model, and $5 of tokens, with usage billing beyond that. The agent edits files and shows its work in an editable unified diff that you accept or reject before committing, and MCP servers can extend what it knows. Business at $30 per seat adds org-wide model policies and data controls, though SSO, SAML and SCIM are not available yet. A 14-day Pro trial needs no card. The small included token balance means agent-heavy users will pay usage on top, and the feature set is narrower than Cursor's.

Cline is the open source option on this list. The extension is free for individual developers, and you pay only for model inference, either with your own API keys or through the Cline provider. It installs in VS Code, Cursor and Windsurf, and Cline also ships a CLI, a native desktop app and an SDK. The agent works in two modes: Plan, where it proposes a strategy for you to approve, and Act, where it edits files, runs terminal commands and reacts to output, with checkpoints and one-click undo on each step. It supports Claude, GPT, Gemini, local models through Ollama or LM Studio and any OpenAI-compatible endpoint, and teams can ship .clinerules files to encode their standards. The trade-offs are cost predictability, since spend tracks token usage, the lack of inline tab completion, and team features such as SSO and the JetBrains extension sitting in the Enterprise tier.