AI tools · AI assistants

Can an AI assistant write and run code for you?

Short answer

Yes. Paid plans include coding agents: Claude Code with Claude Pro and up, Codex with ChatGPT Pro, and Jules with Google AI Pro.

Last checked

Which products can do it?

  • OpenAI ChatGPTYes

    ChatGPT Pro plans include Codex, OpenAI's coding agent.

    Good to know: Pro plans are $100, $200 or $500 a month.

  • Anthropic ClaudeYes

    Claude Code is included in all paid Claude plans and shares the plan's usage limits.

    Good to know: Pro from $20/month; heavier use may need Max or pay-as-you-go API credits.

  • Google GeminiYes

    Google AI Pro and Ultra include Jules, Google's asynchronous coding agent, with higher limits on Ultra.

    Good to know: AI Pro is $19.99/month in the US.

Why it matters

Developers and tinkerers want an assistant that edits real projects, not just answers questions.

Not proven yet

Which agent codes best; we haven't found an independent, current head-to-head test.

Guide

Claude vs ChatGPT vs Gemini: what every plan costs (October 2026)Free, $20 and premium tiers for Claude, ChatGPT and Gemini, what each includes, and what's billed separately, from the companies' own pages.
How we know (3 sources)
  1. undated, read OpenAIFrom the company

    Help article (read Oct 22, 2026): three ChatGPT Pro plans, Pro 100 ($100), Pro 200 ($200) and Pro 500 ($500, the only one with Ultrafast models). Pro includes Pro models, Codex, deep research, image creation, memory and file uploads. New Pro 200 subscriptions get a lower usage allowance than before.

    Read the source
  2. undated, read GoogleFrom the company

    Google AI plans in the US as listed on Oct 22, 2026: Free ($0: Flash-Lite model, Deep Research, Gemini Live, 15 GB storage); AI Plus ($4.99/month, 400 GB); AI Pro ($19.99/month: Gemini 4 Argon, Pro model, Jules coding agent, Gemini in Gmail and Docs, 5 TB); AI Ultra ($99.99 or $199.99/month for 5x or 20x Pro limits, from 20 TB).

    Read the source
  3. undated, read AnthropicFrom the company

    Claude plans as listed on Oct 22, 2026: Free ($0: chat, web search, file creation and code execution, memory, connectors, Artifacts); Pro ($20/month, $17/month billed annually: more usage, Claude Code, Research, Projects, Opus models, Claude in Chrome and Microsoft 365); Max (from $100/month: 5x or 20x Pro usage, plus $100-$200 in monthly API credits). Model training is opt-out on all individual plans. Usage limits reset in five-hour windows plus weekly caps on paid plans.

    Read the source