# Prospero — AI Coding Tool Review & Pricing

> Prospero is a native GUI AI coding harness written in C++ with Dear ImGui that connects to local or remote model providers and lets agents drive your computer to develop software. It runs as a single executable with no daemon, keeps working through intermittent errors while unattended, and can also run headless, over ssh or in the background.

Source: https://ai.dosa.dev/tools/prospero · Updated Nov 2, 2026 · Category: AI-Native IDEs & Editors · Published by dosa.dev

## At a glance

- **Tool**: Prospero
- **Company**: Chris Wellons (skeeto)
- **Category**: [AI-Native IDEs & Editors](https://ai.dosa.dev/category/ai-ides)
- **Pricing model**: Open Source
- **Official website**: https://github.com/skeeto/prospero

## Key features

- Single native C++ executable for Windows, macOS and Linux with a dockable, idle-free ImGui interface
- OpenAI Chat Completions and Anthropic Messages API support, including extended thinking and prompt caching
- Sessions with subagents, todo lists, plans and background jobs
- Desktop control so the agent can see and drive the screen to build and test native GUI apps
- One prospero.ini for endpoints, models, roles, skills, MCP servers and web search, with keys read only from env: or file: references

## Pricing

**Model**: Open Source

Prospero is free, public-domain software (Unlicense) with prebuilt binaries for Windows, macOS and Linux. It ships with no provider configured, so model costs depend on the endpoint you connect: a local llama.cpp or vLLM server is free to run, while hosted OpenAI-compatible or Anthropic APIs bill per token on your own key.

## Who it is for

- **Best for**: Developers who want a lean, local-first coding harness that works with self-hosted models or any compatible API and can develop and test native desktop applications.
- **Not ideal for**: Teams that want a managed, preconfigured cloud agent or deep IDE integration, since Prospero ships unconfigured and is a very young project with rapid breaking changes.

## Verdict

A refreshingly small, dependency-light alternative to Electron-based agent apps that stands out for native desktop control and provider neutrality, best suited to hands-on developers comfortable configuring their own endpoints.

## Recent updates

First published in October 2026 and announced on Chris Wellons's nullprogram.com blog on October 31, 2026 (205 points on Hacker News). Releases v0.9.0 (October 30), v0.10.0 (November 1) and v0.11.0 (November 2, 2026) shipped binaries for Linux x86_64/aarch64, macOS arm64 and Windows x86_64, with recent commits tightening approvals for included web URLs and MCP servers.

## Frequently asked questions

### Is Prospero free?

Yes - Prospero is Open Source. Prospero is free, public-domain software (Unlicense) with prebuilt binaries for Windows, macOS and Linux. It ships with no provider configured, so model costs depend on the endpoint you connect: a local llama.cpp or vLLM server is free to run, while hosted OpenAI-compatible or Anthropic APIs bill per token on your own key.

### Is Prospero open source?

Yes - Prospero is open source. Prospero is free, public-domain software (Unlicense) with prebuilt binaries for Windows, macOS and Linux. It ships with no provider configured, so model costs depend on the endpoint you connect: a local llama.cpp or vLLM server is free to run, while hosted OpenAI-compatible or Anthropic APIs bill per token on your own key.

### Who is Prospero best for?

Developers who want a lean, local-first coding harness that works with self-hosted models or any compatible API and can develop and test native desktop applications.

### Who is Prospero not ideal for?

Teams that want a managed, preconfigured cloud agent or deep IDE integration, since Prospero ships unconfigured and is a very young project with rapid breaking changes.

### What are the best Prospero alternatives?

The closest Prospero alternatives on ai.dosa.dev are Cursor, Devin, Trae - all listed under AI-Native IDEs & Editors.

### Who makes Prospero?

Prospero is developed by Chris Wellons (skeeto). It is listed in the AI-Native IDEs & Editors category on ai.dosa.dev.

## Top alternatives

- [Cursor](https://ai.dosa.dev/tools/cursor) (Freemium) — Developers building complex software who want a deep, agentic integration into their development lifecycle, specifically those comfortable using Grok and Composer models.
- [Devin](https://ai.dosa.dev/tools/devin) (Freemium) — Well-scoped engineering tasks such as bug fixes, writing unit tests, code refactoring, and implementing specific feature requests.
- [Trae](https://ai.dosa.dev/tools/trae) (Freemium) — Solo developers, students, and founders focused on cost-effective rapid prototyping, MVPs, and everyday AI-assisted coding tasks.
- [Zed](https://ai.dosa.dev/tools/zed) (Freemium) — Developers who prioritize editor performance, require privacy-focused AI workflows, or want to integrate their own AI API keys and agents into a collaborative environment.
- [Delta](https://ai.dosa.dev/tools/delta) (Freemium) — Teams that want agent conversations, code changes and review in one shared place, especially those already using Zed or looking to replace pull-request-centred review with threads.
- [PearAI](https://ai.dosa.dev/tools/pearai) (Freemium) — Solo builders, indie developers, and students looking for a familiar, open-source AI-first coding environment with flexible model control.
- Full alternatives guide: https://ai.dosa.dev/tools/prospero/alternatives