Two years ago I was typing every line by hand. Today I orchestrate AI agents that refactor entire portions of production applications. It is not a marketing promise — it is the daily reality of development in 2026.

The 2024-2025 turning point

The release of Claude 3.5 Sonnet in 2024 and then Claude 4 marked a shift. For the first time, an AI could not only autocomplete code but understand an entire project, propose an architecture and deliver a working module in one pass.

For a freelancer like me, the consequences are direct: what took three days takes three hours.

What AI really does well

  • Boilerplate: DB schemas, REST endpoints, unit tests, Zod validations — generated in seconds, often higher quality than copy-paste.
  • Documentation: README, JSDoc, changelog, commit messages.
  • Targeted refactoring: renaming across 50 files, extracting a component, migrating a deprecated API.
  • Exploring unknown code: landing on a 200k-line monorepo and asking "where is payment handled?" is a game changer.

Where AI still fails

Let us be honest: AI has not replaced the senior developer, it has amplified them. What it still misses in 2026: high-inertia architectural decisions, non-trivial debugging, reading between client lines, fine-grained security.

My daily AI stack in 2026

  1. Claude Code for cross-cutting repo tasks.
  2. Cursor for inline context-aware editing.
  3. GitHub Copilot for line completion.
  4. Gemini 2.5 for multimodal tasks.
  5. v0.dev for React UI prototyping.

At SunderDev, I help teams industrialize AI usage. Let us talk.