AI Coding Assistant Statistics 2026: Adoption, Market Share and Code Volume

About two in three developers use an AI coding assistant in 2026: 65.9% of the 17,464 people who answered the question in the Stack Overflow Developer Survey use coding assistants or agents at work, and JetBrains puts weekly use of coding agents at 90% of professional developers. Claude Code leads both surveys, ahead of GitHub Copilot, OpenAI Codex and Cursor.

The surprise is not that developers adopted AI, but how fast the leader changed. A year ago Copilot was the default; by mid-2026 JetBrains measured Claude Code at work for 39% of developers against 21% for Copilot. Toolradar data: the software directory we run tracks 181 AI coding tools as of October 27, 2026, and 159 of them (88%) offer a free tier, while 160 were added to the directory during 2026 (AI coding statistics on Toolradar).

AI coding assistant statistics at a glance

Statistic	Figure	Survey date or report date	Sample	Source
Respondents using AI coding assistants or agents at work	65.9%	Fielded June 23 to August 5, 2026	n = 17,464	Stack Overflow survey, AI data
Coding assistant users who use them daily	73.0%	Same survey	n = 14,478	Same page
Professional developers using coding agents at work at least weekly	90% (68% daily)	May to July 2026	More than 15,000	JetBrains Research, August 18, 2026
Developers using Claude Code at work	39% (47% in the US)	May to July 2026	Same survey	Same post
GitHub Copilot users	More than 50 million	July 29, 2026	Company figure	Microsoft FY26 Q4 earnings call
Share of a developer's code fully written by agents, average	About 47%	May to July 2026	More than 15,000	JetBrains Research, August 26, 2026
Pull requests on GitHub that involve an agent	One in three	July 29, 2026	Company figure	Microsoft FY26 Q4 earnings call
AI coding tools tracked on Toolradar	181, of which 88% have a free tier	October 27, 2026	Directory count	Toolradar statistics

Read each row with its sample in mind. Stack Overflow's respondents choose to take the survey, while JetBrains reweights its answers to match the global developer population by region and employment, so the two surveys measure overlapping but different groups. Where they agree, as they do on the ranking of the top four tools, the finding is solid.

How many developers use AI coding assistants in 2026?

Between two thirds and nine in ten professional developers use an AI coding tool, depending on how the question is asked. Stack Overflow asked which kinds of AI tools people use in their role at work, and 65.9% picked coding assistants or coding agents, ahead of general chat tools at 62.5%. Only 17.2% said they use no AI tool at all.

JetBrains asked a narrower question about agents, local or cloud, and still found 90% weekly use. The gap comes from wording and sampling: a developer who only uses inline completion may not tick "coding agent", and a weekly user may not call the tool part of their role.

How much they use it matters more than whether they do. Among Stack Overflow respondents who use AI daily, 30.9% spend four or more hours a day with it, and another 24.1% spend two to four hours. For a buyer, that is the signal that per-seat flat pricing is giving way to usage-based plans, because heavy users cost vendors real compute.

Trust has risen but stays conditional. Among respondents who answered the trust question, 48.0% trust AI output when they can verify it, and 12.3% do not trust it for most work tasks. The tasks people hand over are the checkable ones: generating code in a familiar area (69.3% of respondents) and debugging or refactoring (63.8%).

Which AI coding tools lead in 2026?

Claude Code is the most used AI coding tool in both 2026 developer surveys, with GitHub Copilot second, OpenAI Codex third and Cursor fourth. The order is the same in both surveys even though the percentages differ, which is the strongest evidence on this page.

Tool	Stack Overflow 2026: used in the past year	JetBrains, May to July 2026: used at work	JetBrains, January 2026: used at work
Claude Code	65.5%	39%	18%
GitHub Copilot	58.7%	21%	29% (a year earlier)
OpenAI Codex	29.5%	16%	3%
Cursor	25.5%	12%	18%
Google Antigravity	16.0%	6%	Not reported
Gemini Code Assist	14.6%	Not reported	Not reported
OpenCode	13.6%	7%	Not reported
JetBrains AI (including Junie)	12.8%	9%	Not reported
Windsurf	6.5%	Not reported	Not reported

Sources, read October 28, 2026: Stack Overflow survey AI data (n = 12,255 who answered the coding agents question) and JetBrains Research. Stack Overflow totals exceed 100% because respondents tick every tool they used.

Three moves stand out. Claude Code roughly doubled its share at work between January and mid-2026, and JetBrains says it is the single most used tool for 31% of developers. Codex grew about fivefold from a small base, with awareness rising from 27% to 65% of developers. Copilot is still the best known tool, with 79% awareness, but its share of working use fell. For a buyer, that makes Claude Code and Copilot the tools a new hire is most likely to know already, while Codex is the one worth a trial if your team already pays for ChatGPT.

Cursor is the odd case: awareness rose to 75% while use at work slipped by six points. JetBrains reports the steepest drop in China, from 28% to 16%. Our Cursor vs GitHub Copilot comparison covers what separates the two editors today.

How much code do AI agents write?

On average, professional developers say about 47% of the code they produced last month was fully written by AI agents, 38% was written with some AI help and 27% was written by hand, according to the JetBrains survey of May to July 2026. Those averages use bucket midpoints, which is why they add up to more than 100%.

The spread is wide. More than half of developers now write less than 20% of their code manually, and one in five writes no code at all without AI. Yet the group that lets agents produce more than 80% of its code is a minority of about 22%.

Segment, JetBrains 2026	Share of developers	Agent-generated code, average
Agentic coders	About 31%	84%
AI-assisted coders	About 47%	40%
Manual coders	About 23%	About 10%

The tool you pick tracks how far you go. JetBrains found that 42% of developers whose main tool is Codex generate more than 80% of their code with agents, against 32% of Claude Code users and 28% of Cursor users. Language matters too: Go, JavaScript and TypeScript developers report 54% to 55% agent-generated code, Java and Python developers 48% to 51%.

Region is the biggest divide. In China, Japan and South Korea, 32% to 35% of developers generate most of their code with agents, roughly double the 16% measured in Europe and the UK. For a team lead, these splits matter more than the average: a TypeScript or Go shop will likely push agents harder than a C or C++ team, and its usage budget should reflect that.

GitHub's own activity data points the same way. Microsoft said on July 29, 2026 that one in three pull requests on GitHub now involves an agent. GitHub's Octoverse report of October 28, 2025 counted 43.2 million pull requests merged per month on average in 2025, up 23% year over year (Octoverse 2025).

How many people use GitHub Copilot?

GitHub Copilot has more than 50 million users, Microsoft said on its July 29, 2026 earnings call, and GitHub as a whole has 225 million. Microsoft also said Copilot revenue grew more than 60% quarter over quarter after GitHub moved Copilot to usage-based billing in June 2026.

That 50 million is a cumulative user count across free and paid plans, not paid seats, so set it beside the survey shares rather than against them. A product can be the most widely known and still lose working share, which is what JetBrains measured for Copilot this year. GitHub's earlier data explains the reach: Octoverse 2025 found that roughly 80% of new developers on GitHub try Copilot within their first week.

No other vendor in the table publishes a comparable user count on its own pages, so any "Cursor users" or "Claude Code users" total you see elsewhere is an outside estimate unless it links to the company.

What an AI coding assistant costs per developer

A paid individual plan for the four leading tools starts at $8 to $20 a month, and team seats run from $19 to $30 per developer on monthly billing. The table below lists what each vendor printed on October 28, 2026.

Tool	Free option	Entry paid plan	Heavy-use plan	Team seat
Claude Code (Claude plans)	No, Free plan excludes Claude Code	Pro $20 a month, or $17 a month billed yearly ($200 up front)	Max from $100 a month	Team standard seat $25 monthly, $20 billed yearly
GitHub Copilot	Free plan with limited chat and agent use	Pro $10 a month	Pro+ $39, Max $100 a month	Business $19, Enterprise $39 per seat a month
OpenAI Codex (ChatGPT plans)	Free plan for quick tasks	Go $8 for light tasks, Plus $20 a month	Pro at $100, $200 or $500 a month	Business $25 monthly, $20 billed yearly (2+ users)
Cursor	Free plan, limited AI use	Plus $8 a month, Grok models only	Premium $30, Super $100, Ultra $200 a month	Teams from $30 per user a month
JetBrains AI	Free plan with unlimited completion	AI Pro $100 per user per year	AI Ultimate $300 per user per year	Not compared here
Google Antigravity	Free individual plan	Higher limits through Google AI Pro and Ultra	Google AI Ultra	Gemini Enterprise plans from $30 per seat a month

Sources, read October 28, 2026: Claude pricing, GitHub Copilot plans, GitHub Copilot plan docs, Codex pricing, Cursor pricing, JetBrains AI plans and Antigravity pricing. For Google AI Pro and Ultra, check the current price on Google's site.

Two details change the comparison. Copilot now meters chat and agent work in AI credits worth $0.01 each, and Pro's $10 buys 1,000 base credits plus a 500-credit flex allotment that GitHub says may change; completions stay unlimited. Cursor's cheapest plans run Grok models only, and on Premium and above, third-party models such as Claude or GPT are billed separately at API list price.

The heavy-use tier has converged on one number. Claude Max, Copilot Max, ChatGPT Pro and Cursor Super all start at $100 a month, which tells you what the vendors think a full-time agent user costs them. Our Claude Max review and ChatGPT Pro review work out when that tier pays for itself.

If you want price changes like these flagged as they happen, AIpresso sends a short daily brief on AI tools at aipresso.com.

What a 10-developer team pays in a year

For a 10-person team on monthly billing, a year of team seats costs $2,280 on Copilot Business, $3,000 on Claude Team or ChatGPT Business, and at least $3,600 on Cursor Teams. All figures are our arithmetic on the seat prices above, before tax and before any usage beyond the included allowance.

Option for 10 developers	Monthly billing, 12 months	Catch
GitHub Copilot Business	$2,280	1,900 AI credits per user, pooled; extra use at $0.01 a credit
Claude Team, standard seats	$3,000	Usage limits apply; premium seats cost $125 monthly
ChatGPT Business with Codex	$3,000	Yearly billing needs 2 or more users
Cursor Teams	$3,600 and up	Third-party model use billed on top

Yearly billing narrows the gap: Claude Team and ChatGPT Business both drop to $20 a seat, or $2,400 a year for the same team, which puts them within $120 of Copilot Business.

The seat price is the floor, not the bill. Every vendor in this table now charges for heavy agent use beyond an allowance, so a team where a third of developers run agents all day should budget for overage or premium seats. Developers who prefer to pay per token can compare against our Claude API pricing breakdown, and teams weighing a fully autonomous agent should read Devin pricing.

What these statistics do not tell you

Three limits keep these numbers honest:

• Use is not dependence. "Used in the past year" in Stack Overflow's data counts a developer who tried a tool once; JetBrains' "used at work" is closer to regular use.
• Self-reported code shares are estimates. JetBrains asked developers to recall last month's split, and bucketed answers add up to more than 100%.
• Vendor counts are not survey shares. Microsoft's 50 million Copilot users is a company figure with its own definition, not a sample of developers.

For the ranked picks, see our best AI coding assistants. For wider market figures, see AI tools statistics, the AI subscription prices 2026 index and our ChatGPT statistics.

How we compiled these statistics

We read the Stack Overflow Developer Survey 2026 results and methodology, two JetBrains Research posts on the Developer Ecosystem Survey 2026, Microsoft's FY26 Q4 earnings call and GitHub's Octoverse 2025 on October 28, 2026, and quote each figure with its sample size and date. Prices come from each vendor's own pricing page or plan documentation on the same day, on monthly billing unless a row says otherwise; team totals are our arithmetic. The Toolradar figures come from the directory's live category page dated October 27, 2026. We used no third-party market-size reports or price estimates.

FAQ

How many developers use AI coding assistants in 2026?

In the Stack Overflow Developer Survey 2026, 65.9% of 17,464 respondents use AI coding assistants or agents at work. JetBrains found that 90% of professional developers used coding agents at least weekly in May to July 2026, and 68% used them daily.

What is the most used AI coding assistant in 2026?

Claude Code. It was used by 65.5% of Stack Overflow respondents who answered the coding agents question, and by 39% of professional developers at work in JetBrains' May to July 2026 survey, about twice GitHub Copilot's 21% in that survey.

How many users does GitHub Copilot have?

More than 50 million, according to Microsoft's July 29, 2026 earnings call. That is a total user count across plans, not paid seats.

How much code is written by AI in 2026?

Developers in the JetBrains survey reported that about 47% of their code last month was fully written by AI agents, on average. About 22% let agents write more than 80% of their code, and one in five writes no code without AI help.

How much does an AI coding assistant cost?

On October 28, 2026, entry paid plans were Copilot Pro at $10 a month, Cursor Plus at $8, ChatGPT Plus with Codex at $20 and Claude Pro with Claude Code at $20 on monthly billing. Team seats ran from $19 (Copilot Business) to $30 and up (Cursor Teams) per developer a month.

Is there a free AI coding assistant?

Yes. GitHub Copilot, Cursor, OpenAI Codex, JetBrains AI and Google Antigravity all have free plans with limited use, while Claude's free plan does not include Claude Code. On Toolradar, 88% of the 181 AI coding tools tracked offer a free tier.

Cite this: AIpresso, "AI Coding Assistant Statistics 2026: Adoption, Market Share and Code Volume", November 2026.

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