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ReviewRamble

The best AI tools for writing code in 2026

Coding agents now read a whole repository, edit files across it and run the tests themselves. The choice is mostly about where you work (terminal, editor or cloud), which models you can use and how the bill grows with heavy use.

By Andrew Miller and Sheela · Updated Oct 26, 2026 · How we review

How we chose: each pick is a product, model or project we have reviewed that does this job according to our review of it, ranked by our rating out of 5. We take no affiliate commission.

Also ranked: the best AI coding tools

  1. 1

    AI Tools: Coding

    Claude Code

    Claude Code is the coding agent the others are measured against in 2026; the price is a single model vendor and a usage meter you cannot see.

    Best for: Developers who want a scriptable, highly customisable coding agent and are happy standardising on Claude models.

    Price: Included in every paid Claude plan: Pro $20/month ($17/month billed yearly); Max 5x $100/month or Max 20x $200/month; Team Standard $25/seat/month ($20 yearly) and Premium $125/seat/month ($100 yearly); Enterprise $20/seat/month plus usage at API rates. Not on the free plan. Can also run on API pay-as-you-go.

    Read our Claude Code review
    4.7/5
  2. 2

    AI Models: General purpose

    Claude Opus 5.5

    Anthropic's new default earns the title: first on Artificial Analysis's independent index, and a fifth cheaper per token than the Opus it replaces.

    Best for: Teams running long coding agents, code audits or document-heavy research where finishing the task matters more than the cost of each call.

    Price: API: $4 per 1M input tokens, $20 per 1M output; cache reads $0.20, 5-minute cache writes $5; Batch API 50% off; fast mode $8/$40; US-only inference 1.1x.

    Read our Claude Opus 5.5 review
    4.7/5
  3. 3

    GitHub Repos: Coding agents

    OpenCode

    A terminal agent you can point at any model and audit line by line, provided you keep its local server patched.

    Best for: Developers who want a vendor-neutral terminal coding agent.

    Price: Free and open source (MIT); you pay your model provider. Optional OpenCode Go costs $10 or $40 a month; Zen is pay-as-you-go from $20 top-ups; Enterprise is per seat, price on request.

    Read our OpenCode review
    4.6/5
  4. 4

    AI Tools: Coding

    Cursor

    Still the editor where your agents can do the most, but since SpaceX bought it, every model that isn't Grok costs you extra.

    Best for: Developers who want one VS Code-style editor for autocomplete, local agents, cloud agents and code review, and who are fine paying extra for non-Grok models.

    Price: Free (limited); Plus $8/month (Cursor and Grok models only); Premium $30/month (4x Plus usage, cloud agents, Bugbot, third-party models at API list price); Super $100/month (15x); Ultra $200/month (50x); Teams $30, $100 or $200 per seat/month; Enterprise custom. Annual: $80, $300, $1,000, $2,000. Usage resets weekly.

    Read our Cursor review
    4.5/5
  5. 5

    AI Tools: Coding

    OpenAI Codex

    Codex is the coding agent most developers already own through ChatGPT, and its main weakness is that OpenAI keeps changing what that ownership buys.

    Best for: Developers and teams already paying for ChatGPT who want a terminal and cloud coding agent without a separate subscription.

    Price: Free and Go ($8/month): GPT-6 Luna in the desktop app, rolling out. Plus $20/month with usage measured per 5 hours. Pro $100, $200 or $500/month with no five-hour limit for now (Ultrafast mode only at $500). Business $20/user/month yearly (2-user minimum) or $25 monthly. Enterprise and Edu via sales. Extra credits can be bought.

    Read our OpenAI Codex review
    4.5/5
  6. 6

    GitHub Repos: Coding agents

    Cline

    Cline is now the default open-source agent for VS Code, more because its rivals stopped than because it changed, and its 2026 security record says to treat it as software with real attack surface.

    Best for: VS Code users who want an open-source agent and control over which model they pay for.

    Price: Free and open source (Apache 2.0); you pay model providers or Cline at cost. ClinePass for open-weight models $9.99/month. Enterprise custom.

    Read our Cline review
    4.4/5
  7. 7

    AI Tools: Coding

    GitHub Copilot

    If your company already lives on GitHub, Copilot is the safe default, though token billing means heavy agent use now needs watching.

    Best for: Individuals who want a low-cost assistant with many models, and teams that already run on GitHub.

    Price: Free (2,000 completions a month and limited chat); Pro $10/month with $15 of AI Credits; Pro+ $39/month with $70; Max $100/month with $200; Business $19/user/month with 1,900 credits; Enterprise $39/user/month with 3,900. 1 credit = $0.01; extra usage billed against a budget.

    Read our GitHub Copilot review
    4.4/5
  8. 8

    AI Models: Coding

    GLM-5.3

    Open-weight coding within a few points of the closed frontier, under a licence almost nobody needs to read twice.

    Best for: Developers and companies who want a capable open coding and agent model with minimal licence restrictions.

    Price: Open weights under a modified MIT licence. Z.ai API: $1.40 input / $0.26 cached / $4.40 output per 1M tokens; GLM-5.3-Flash $0.15 / $0.50.

    Read our GLM-5.3 review
    4.4/5

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