Key Takeaways
- Free now comes in three forms: a hosted allowance (Copilot, Cursor, Codex, Antigravity, Kiro), a free client that needs your own model (OpenCode, Zed, Aider), or a limited-time free model inside a client.
- Published limits are rare: Copilot's 2,000 completions and Kiro's 50 credits are the clear numbers. Cursor, Codex, and Antigravity describe limits without giving a figure.
- Older lists are out of date: Continue's repository is read-only, Amazon Q Developer stopped new Free accounts on May 15, 2026, and individual Gemini Code Assist shut down on June 18, 2026.
- Your code may be the price: several free plans allow training on your data by default, so check the data section below before opening a private repository.
Best Free AI Coding Tools in 2026: What You Can Actually Use Without Paying
This guide was checked against official pricing and documentation pages on November 1, 2026. It compares eight options: GitHub Copilot Free, OpenAI Codex Free, Cursor Free, Google Antigravity, Kiro Free, OpenCode, Zed Personal, and Aider.
You do not need a $20/month subscription to code with AI. The catch is understanding what "free" covers, because every option trades something: usage limits, model quality, your own API bill, or your data.
NxCode did not run a head-to-head benchmark of these tools. This is a source-backed comparison with a test plan you can repeat yourself.
TL;DR: Free AI Coding Tools Compared
| Tool | Type | What is free | Published limit | Open source |
|---|---|---|---|---|
| GitHub Copilot Free | IDE extension, CLI | Completions, chat, agent mode | 2,000 completions/mo; chat and agent not published | No |
| OpenAI Codex Free | Desktop app | GPT-6 Luna, subject to rollout | Not published | CLI only (Apache-2.0) |
| Cursor Free | Editor | Limited Agent and Chat, no third-party models | Not published | No public license found |
| Antigravity | App, CLI, extensions | Agents, unlimited tab completion | "Basic weekly rate limits" | Not confirmed |
| Kiro Free | IDE, CLI, web | Open-weight models and Claude Sonnet 4.5 | 50 credits/mo | No |
| OpenCode | Terminal, desktop, IDE | Client, plus some limited-time free models | Client unlimited; free model limits not published | Yes (MIT) |
| Zed Personal | Editor | Editor, your keys, external agents | No limit with your own keys | Yes (GPL-3.0-or-later) |
| Aider | Terminal | Client only | No limit; you pay your model provider | Yes (Apache-2.0) |
Bottom line: Hosted plans get you started in minutes but cap your usage. Open-source clients remove the cap and move the cost to your model provider.
1. GitHub Copilot Free
Best for: Developers who want AI inside their current editor with a published allowance.
GitHub's plan documentation lists 2,000 code completions per month on Free. The plans page adds limited chat and agent usage without a number. Free includes agent mode and Copilot CLI, but not Copilot in the cloud or full code review. Model choice is Auto only.
What to try
Install the extension and open a small repository. Ask it to explain one unfamiliar function, accept a few suggestions, then ask agent mode for a two-file change. Check your usage screen before and after.
Limitations
Agent usage can run out quickly, and you cannot choose the model. Under the interaction data policy, Free data may be used for training unless you opt out.
Verdict
The easiest first step for most developers, especially for inline suggestions.
2. OpenAI Codex Free
Best for: People who want to try a desktop coding agent with no setup cost.
The Codex pricing page lists a Free plan in the desktop app using GPT-6 Luna at standard speed, subject to rollout. The CLI and cloud integrations start with paid plans. The usage limit for Free is not published.
What to try
Give it a small, well-tested task in a throwaway branch and watch how it plans, edits, and runs tests. Note how far you get before hitting a limit.
Limitations
You get the lightest model and no fixed allowance, so it is better for evaluation than daily work. The paid step up is Go at $8/month, with the same app and model, or Plus at $20/month.
Verdict
A good way to experience a full agent workflow, not a dependable free daily driver.
3. Cursor Free
Best for: Developers evaluating an AI-first visual editor before paying.
Cursor's pricing page now lists Free, replacing the old Hobby name for new customers, with "Limited agent requests" and "Limited Chat requests" and no third-party models. Numbers are not published.
What to try
Open the repository you used with Copilot, ask for the same two-file change, and compare the review experience. This tests whether a visual diff flow saves you time.
Limitations
Cursor changed its plans in 2026. The paid ladder is now Plus at $8, Premium at $30, Super at $100, and Ultra at $200, sold through The X Subscription. Plus covers Grok models only. With Privacy Mode off, Cursor may use your data to improve its models.
Verdict
Worth a trial if you want an editor built around agents. Turn on Privacy Mode first.
4. Google Antigravity
Best for: Developers who want the most generous-looking free visual agent from a large vendor.
Google moved individual Gemini Code Assist users to Antigravity. The pricing page lists $0 for individuals with "Basic weekly rate limits" and unlimited tab completion. It ships as an app, a CLI, and VS Code and JetBrains extensions. The models page lists Gemini 3.8 Flash on Free; Claude 4.6 and GPT-OSS-120b are marked for removal on November 2, 2026.
What to try
Run a task large enough to reach the weekly limit, so you know where it sits for your workload before you depend on it.
Limitations
The limit has no published number. Gemini 4 Argon and current Claude models need a paid or Enterprise plan. We could not confirm the training terms for individual use, so check them before opening private code.
Verdict
A strong free option for personal projects, with terms to verify for anything sensitive.
5. Kiro Free
Best for: AWS users, and anyone moving off Amazon Q Developer.
AWS points Amazon Q Developer users to Kiro. The Kiro pricing page lists 50 credits per month on Free, with open-weight models and Claude Sonnet 4.5. Kiro is available as an IDE, CLI, and web app.
What to try
Spend your 50 credits on one realistic task. Credits vary by model, and the models page shows each multiplier, so you can see what a task really costs.
Limitations
Fifty credits will not last a month of daily use. Under Kiro's data terms, Free and individual content may be used for service improvement, including model training, unless you opt out. Free inputs may also be kept up to 60 days for abuse detection, even after you opt out.
Verdict
Useful as a small, clearly measured allowance, not as a primary tool.
6. OpenCode (Open Source)
Best for: Terminal users who want full control of model and billing.
OpenCode is an MIT-licensed coding agent with more than 220,000 GitHub stars, available as a terminal UI, desktop app, and IDE extension. It works with your own provider or a local model. It also offers free models labeled "for a limited time", such as Big Pickle and DeepSeek V4.1 Flash Free.
What to try
In a throwaway Git branch, connect a provider and set its spending cap first. Ask OpenCode to explain a failing test before you allow any edits, then request a small fix and compare the diff with the test output.
Limitations
It assumes you are comfortable with Git and a terminal. Free models can change or disappear, and OpenCode says it stores data only when you use those free models, so keep them away from private code.
Verdict
The best free client if you want flexibility. Measure your cost per finished task from your real bill.
7. Zed Personal
Best for: Developers who want a fast open-source editor and already have an AI provider.
Zed's Personal plan is $0 and promises "Unlimited use with your API keys or external agents", including Claude Agent and Codex CLI through the Agent Client Protocol. Its plan documentation says hosted models and Zed's own Edit Predictions require Pro. You can still use edit predictions from other sources, such as GitHub Copilot or a local model.
What to try
Use Zed for normal editing first, then attach an agent you already pay for. Track that provider's usage separately. The Pro trial runs 14 days and needs no credit card.
Limitations
A free editor is not free inference: your own key still bills per token. If you want hosted AI with no setup, start with Copilot Free or Antigravity instead.
Verdict
Ideal if you want one editor and prefer to choose your own agent.
8. Aider (Open Source)
Best for: Developers who want every AI edit recorded as a Git commit.
Aider is an Apache-2.0 terminal pair programmer that commits each AI change, which makes edits easy to review and revert. It works with your own model keys.
Limitations
Activity has slowed. The latest PyPI release is 0.86.2 from February 12, 2026, and the repository was last updated on May 22, 2026. There is no official statement that it has stopped, but its recommended model list still names older models.
Verdict
Still useful for its Git-first workflow, but for a new setup we would start with OpenCode.
Tools Older Lists Still Recommend
If another article suggests these, check its date.
- Continue: The site says it was acquired by Cursor, and the repository says it is no longer actively maintained and is read-only. The Apache-2.0 code stays available.
- Amazon Q Developer Free: AWS stopped new Free and Pro sign-ups on May 15, 2026. IDE plugins and paid subscriptions reach end of support on April 30, 2027.
- Gemini Code Assist for individuals: Shut down on June 18, 2026. Paid Standard and Enterprise stopped new purchases on October 9, 2026.
- Gemini CLI free tier: The README now says "No free tier or Google AI plans"; those users moved to Antigravity CLI.
- Windsurf: Renamed Devin Desktop. It has a Free plan, but training is on by default and the docs describe opt-out for paid plans.
Which Free Tool Should You Start With?
Match the tool to your situation rather than to a general ranking.
- You are learning to code: Start with Copilot Free in VS Code. Read each suggestion before you accept it, because understanding the code matters more at this stage than speed.
- You want a full agent on a personal project: Try Antigravity or Codex Free, and expect to hit a limit during heavy use.
- You already pay for an API: Use OpenCode or Zed, which let you spend that budget on real work with no extra subscription.
- You work on private company code: Skip the free plans until you have read the data terms, and ask whether your employer already holds a Business license.
- You build on AWS: Use Kiro Free to test the workflow before you commit to a plan.
- You want an app, not a coding tool: NxCode starts from a product brief rather than from a code editor, so it answers a different question from the eight tools above.
Most developers end up combining two: one tool for inline suggestions, and one agent for larger tasks. That pairing is often enough to keep a monthly bill at zero while you learn what you actually need.
The Real Cost of "Free"
Your data
| Tool | Default on the free plan | Source |
|---|---|---|
| Copilot Free | Interaction data may be used for training; opt-out available | GitHub |
| Cursor Free | May be used for training when Privacy Mode is off | Cursor |
| Kiro Free | May be used, including for training; opt-out available | Kiro |
| OpenCode | Stored only when you use its free models; provider terms apply otherwise | OpenCode |
| Zed with your key | Not retained by default; provider terms apply | Zed |
| Aider | Optional analytics; provider terms apply | Aider |
We could not confirm current consumer terms for Codex Free or Antigravity from official pages. Treat them as unknown until you have read them yourself.
Included usage versus your own key
Copilot, Cursor, Codex, Antigravity, and Kiro include hosted usage, but each measures it differently. OpenCode, Zed, and Aider can run as free clients, and your provider bills you when you connect a hosted model. A local model removes that bill and adds hardware and power costs, so "no API bill" is more accurate than "zero cost".
Do not compare one tool's requests with another tool's tokens as if they were the same unit. For a fair comparison, record the same four numbers for each tool: accepted changes, test result, elapsed time, and usage consumed.
Terms to Know Before Comparing Free Plans
- Included usage means requests or credits supplied with the plan. It is not unlimited, even if no number is published.
- BYOK means "bring your own key". The client may be free while the model provider charges per token.
- Local model means inference on your own machine, with no hosted API bill but real hardware requirements.
- Open weight means the model files are downloadable, which is different from the app being open source.
Reproducible Examples: Three Tasks to Try
Use the same repository and Git commit for every tool, and record the date, model, and plan. These are proposed examples, not results of a completed NxCode benchmark.
- Explanation example: Pick a 100-line function with a known bug. Ask the assistant to explain its inputs, side effects, and the bug, then check each claim against the code.
- Two-file edit example: Ask for a narrow feature that touches one implementation file and its test. Run the test before and after, review the diff, and record the usage consumed.
- Refactor scenario: On a branch, request a safe rename across three files, then run lint and tests. Note whether the tool caught every import and how easily you could revert.
A useful comparison table has columns for task, tool, model, setup time, passing tests, human corrections, and usage. If you want to build a whole application without managing an editor or API keys, NxCode's app builder is a different workflow: judge it on the finished app and the deployment steps rather than on token quotas.
Practical Checklist: Choosing and Controlling Cost
- Read the official plan page on the day you sign up and note what the free allowance covers.
- Check the data terms, and opt out of training before you open private code.
- Set a spending cap before you use any bring-your-own-key client.
- Run the three examples above on a disposable branch, using comparable models.
- Review every change, run your tests, and read the usage dashboard afterward.
- Upgrade only after you know which limit is blocking you.
Record failures as well as successes, because leaving them out makes any free plan look more generous than it is. On a team, confirm that the free terms allow your account management and data controls before you recommend a tool to colleagues.
Sources and Verification Date
Product terms checked on 2026-11-01. Plans change often, so the links below are the authority for current limits.
- GitHub Copilot plans documentation — Free limits and included features.
- Codex pricing — Free, Go, Plus, and Pro plans.
- Cursor pricing — current plan ladder.
- Cursor data use — Privacy Mode terms.
- Antigravity pricing — individual plan and rate limits.
- Kiro pricing — Free credits and paid tiers.
- OpenCode repository — license and project status.
- Zed pricing — Personal and Pro plans.
- Aider releases on PyPI — latest release date.
- Continue repository — maintenance status.
- Amazon Q Developer end-of-support announcement — sign-up and support dates.
- Gemini Code Assist sunset notice — purchase and support dates.
