AI Horizon compares ChatGPT, Claude, and Gemini for coding use cases in 2026
AI HORIZON published a comparison of three AI coding assistants: OpenAI's ChatGPT with Codex, Anthropic's Claude with Claude Code, and Google's Gemini with Antigravity. The article evaluates each tool across use cases such as beginner app building, continuous development on existing codebases, and free-tier access for agent-based development.
Key points
- ChatGPT Codex offers free tier with usage limits; cloud execution on paid plans
- Claude Code costs $20/month Pro plan, targets multi-file project improvements
- Google Antigravity has free tier with weekly limits; individual Code Assist ended June 18, 2026
ChatGPT's Codex supports code generation, editing, testing, and cloud execution, with a free tier subject to usage limits. Claude Code runs from the terminal and VS Code, focuses on multi-file projects, and requires a $20-per-month Pro plan with usage caps. Google's Antigravity platform offers a free tier with weekly limits and paid plans for higher quotas; the article notes that individual Gemini Code Assist and Gemini CLI access ended on June 18, 2026. The comparison table is not a performance benchmark. AI HORIZON recommends ChatGPT for beginners, Claude Code for improving existing apps, and Antigravity for trying agent-based development free, while stressing that AI-generated code must be verified and debugged by the developer.
The story so far
6 episodes →- AI Horizon compares ChatGPT, Claude, and Gemini for coding use cases in 2026this story
Which AI for Coding: ChatGPT, Claude, or Gemini? A Thorough Comparison by Use Case in 2026
note.com · 12 October 2026
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