Moss Spend Report · Jan–May 2026

Best AI dev tools in 2026.

Ranked by spend data.

Most “best AI coding tools” lists run on feature demos, YouTube walkthroughs, or personal preferences. This ranking comes from anonymised spend data across thousands of companies: what teams are actually paying for, not what reviewers are recommending. This page covers AI-powered development tools: coding assistants and app builders.

For general-purpose AI tools like ChatGPT and Claude, see the AI tools ranking
€1.0M
total AI dev tools spend tracked in 2026
4
AI dev tools vendors analysed
1,000s
of companies, Jan–May 2026

The leaderboard

The 4 most popular AI dev tools by spend

Ranked by adoption, the number of organisations using each tool. Click any column to re-sort: by spend or by year-on-year growth.

Tool
Category
1
Cursor
AI coding agent
€883,197
+1,018.7%
2
Lovable
AI app builder
€128,479
+1,615.8%
3
Replit
AI development platform
€20,294
+779.7%
4
Windsurf
AI coding agent
€5,426
+47.9%

Spend bars use a logarithmic scale so smaller tools remain visible alongside Cursor. Rank reflects company adoption.

Cursor dominance, in one bar

Share of total AI dev tools spend

Cursor leads on both spend (85.1%) and adoption (63.0%). Lovable reaches 48.1% of companies with 12.4% of total spend.

Cursor85.1%
Lovable12.4%
Others2.5%

Key takeaways

Four things the spend data tells us

01

Cursor dominates with 85.1% of all spend at €883,197, more than the other three tools combined. It also leads adoption at 63.0% of companies in the category.

02

Lovable spend grew +1,615.8% to €128,479, the fastest spend increase in the category. Its +340.4% adoption growth also makes it the fastest-adopted AI dev tool.

03

Replit spend grew +779.7% to €20,294. Small in absolute terms, but up from €2,307 last year.

04

Windsurf (now Devin Desktop) spend grew +47.9% to €5,426. The slowest growth rate in a category where every tool saw positive growth.

The ranking · 4 to 1

Every tool, in detail

4
#4AI coding agent

Windsurf

Total spend
€5,426
Spend share
0.5%
YoY growth
+47.9%

The smallest tool in the category by both spend and adoption. Spend grew 47.9% and adoption grew 28.6%. Windsurf was acquired by Cognition in 2025 and rebranded to Devin Desktop in June 2026.

Key features in 2026

IDE and command centre for managing fleets of local and cloud coding agents. Agent Command Center coordinates multiple agents from a single interface with a Kanban view. Spaces share context and Git worktrees across agents. Supercomplete anticipates next edits beyond single-line completions. Agent Client Protocol (ACP) enables multi-agent coordination across models. MCP integrations including Slack, Figma, GitHub, Stripe, and others.

Pricing

SaaS subscription. Free tier with limited agent usage and inline edits. Pro adds access to frontier models from OpenAI, Claude, and Gemini plus cloud agents. Max offers higher quotas. Teams adds centralized billing, analytics, and collaboration. Enterprise adds SAML/OIDC SSO and dedicated deployment.

Who it's best for

Engineering teams managing multiple AI coding agents who want an IDE-level command centre for orchestrating local and cloud-based agent workflows.

3
#3AI development platform

Replit

Total spend
€20,294
Spend share
2%
YoY growth
+779.7%

Third by adoption and growing. Spend grew 779.7% and adoption grew 73.3%. Monthly spend peaked at €5,722 in March before settling around €4,000 in April and May.

Key features in 2026

AI-powered platform for building apps from natural language descriptions. Agent 4 handles parallel task execution for simultaneous work on multiple tasks within a project. Built-in authentication, database, hosting, and monitoring. Supports 100+ integrations including OpenAI, Stripe, and Google Workspace. Infinite Canvas for visual design exploration. Outputs span web apps, mobile apps, slides, animations, and 3D games. SOC 2 compliant.

Pricing

SaaS subscription with credit-based usage. Starter (free) with daily agent credits and one published project. Core adds more credits, up to 5 collaborators, and parallel agents. Pro adds access to the most powerful models, database rollbacks up to 28 days, and premium support. Enterprise adds SSO/SAML, design systems, data warehouse connections, and single-tenant environments.

Who it's best for

Builders, product managers, and small teams who want to go from idea to deployed app without managing infrastructure. Replit combines AI coding with built-in hosting and databases.

2
#2AI app builderThe duopoly

Lovable

Total spend
€128,479
Spend share
12.4%
YoY growth
+1,615.8%

The fastest-growing tool by both adoption (+340.4%) and spend (+1,615.8%). Monthly spend grew from €11,608 in January to a peak of €35,208 in April.

Key features in 2026

AI-powered app and website builder using a conversational interface. Users describe what they want and Lovable generates a working prototype in real time. Iterative refinement through natural language feedback. One-click deployment to production. Template library with pre-built starting points. Integration connectors for third-party services. Desktop app and MCP server support. Domain registration services.

Pricing

SaaS subscription with credit-based usage. Free tier with daily build credits and monthly cloud credits. Pro adds a monthly credit balance for building, hosting, and AI features. Business adds higher credits and additional features. Annual billing available with extended credit expiry.

Who it's best for

Product managers, designers, founders, and non-technical teams who want to build and deploy apps through conversation rather than code. Lovable targets use cases from prototypes and internal tools to SaaS apps and marketing sites.

1
#1AI coding agentThe duopoly

Cursor

Total spend
€883,197
Spend share
85.1%
YoY growth
+1,018.7%

Takes the top spot by both adoption and spend. Cursor holds 63.0% of companies and 85.1% of total spending in the category. Monthly spend grew from €118,025 in January to €231,463 in May, nearly doubling within the year. Spend increased more than tenfold from €78,945 in Jan-May 2025.

Key features in 2026

AI-powered IDE with autonomous coding agents that plan, build, test, and demo features end-to-end. Cloud agents work in parallel on separate tasks. Tab completion uses a specialised model for predictive next-action accuracy. Cmd+K applies targeted edits. Full codebase understanding with semantic search and intelligent navigation. Multi-model support including GPT-5.5, Claude Opus 4.8, Gemini 3.1 Pro, and Cursor’s own models. Bugbot reviews GitHub pull requests. SOC 2 certified.

Pricing

SaaS subscription. Free tier (Hobby) with limited agent requests and completions. Individual plans (Pro, Pro+, Ultra) add increasing usage limits and access to frontier models. Teams (Standard, Premium) adds centralized billing, a team marketplace for rules and plugins, and usage analytics. Enterprise adds SCIM, audit logs, pooled usage, and priority support.

Who it's best for

Engineering teams that want AI-accelerated development inside a full IDE. Cursor is the dominant AI coding agent in the category, used by over half of Fortune 500 companies according to its website.

Trends for 2026

Three shifts to watch

FAQ

Frequently asked

In our spend data, Cursor is the most widely used AI dev tool by both adoption and spend. Cursor reaches 63.0% of companies in the category and captures 85.1% of all AI dev tools spending at €883,197. Lovable ranks second by adoption with 48.1% of companies.

Methodology

Anonymised card transaction data from European companies. €301M across 20,054 vendors, January 2024 – May 2026. 19 software categories. All figures in EUR. YoY comparisons are like-for-like (Jan–May 2025 vs Jan–May 2026). No individual company data disclosed. Last updated: 26 June 2026.

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