Prompt-to-code

The Claude API is Anthropic's developer platform for building apps and agents on Claude models, billed per million tokens. Rates run from Claude Haiku 5.5 at $0.10 input and $0.50 output up to Claude Fable 5.1 at $10 and $50.

Google Antigravity is Google's agent-first development platform with a desktop app, IDE, CLI and SDK. The Individuals plan is free with weekly rate limits; higher limits come with Google AI Pro or Ultra.

Windsurf is an AI code editor with the Cascade agent and Tab completion, also offered as a JetBrains plugin. Cognition now brands the editor as Devin Desktop; the Windsurf site still lists a free plan and Pro at $15 a month.

Codex is OpenAI's coding agent, available in ChatGPT on the web, desktop and mobile apps, a CLI and an IDE extension. A limited allowance is included in the free ChatGPT plan; paid plans start at $8 a month.

Claude Code is Anthropic's coding agent that reads a codebase, edits files and runs commands from a terminal, editors, web or desktop app. Not included in the free Claude plan; paid plans start at $20 a month.

Generate a SaaS boilerplate from a prompt