fx vs MeDo by Baidu: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of fx and MeDo by Baidu — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
fx
Vercel Labs
Vercel Labs' tiny open-source coding agent — a ~6 MB native CLI written in Zig, built for speed, embeddability and Unix-style ergonomics.
Key features
- Tiny Native Binary: The whole agent ships as a roughly 6 MB executable designed for instant installation and for embedding in resource-constrained environments and agent sandboxes.
- Instant Time to Prompt: fx cold starts in about 10 microseconds and performs no unnecessary work or I/O before accepting user input, which matters for programmatic invocation.
- Minimal Memory Footprint: A single-digit-megabyte memory baseline lets you pack many concurrent instances onto one machine.
- Shell-Like Ergonomics: Scroll history is preserved by default and output is deliberately sparse, so the CLI composes like a Unix tool instead of taking over the terminal.
- Context Efficiency: A minimal system prompt and tool surface reduce token spend and improve time-to-first-token performance.
- WebAssembly Builds: Optimal fx.wasm builds from the Zig toolchain shrink the binary further and make the network stack pluggable, enabling the in-browser demo.
- Model and Provider Agnostic: Works with local models, LLM gateways, direct provider API access or existing subscriptions rather than locking you to one vendor.
- Extensible Small Core: Capabilities are added through skills, plugins and MCPs, following a Unix-like philosophy of a small core with composable extensions.
Best for
- Sandboxed Agent Execution: Ship a full coding agent inside a container or sandbox where a large runtime would not fit.
- Embedding in Larger Systems: Use fx as the agent harness inside your own product or internal platform rather than building a loop from scratch.
- CI and Scripted Automation: Invoke a coding agent from pipelines and scripts where fast cold starts and quiet output matter more than an interactive UI.
- Agent Harness Research: Experiment with system prompt and tool design on a deliberately minimal, readable Apache-2.0 codebase.
- Local-Model Coding: Run agentic coding against a locally hosted model without any dependency on a specific cloud provider.
- Browser-Based Demos and Playgrounds: Compile to WebAssembly and run the agent client-side with networking delegated to browser fetch.
MeDo by Baidu
Baidu
No-code platform that turns natural-language prompts into working full-stack apps and websites using a drag-and-drop editor.
Key features
- Prompt-to-App Generation: Converts natural-language descriptions into a working app scaffold—generating pages, data models, routes and UI components from a single prompt to speed prototype creation.
- Drag-and-Drop Visual Editor: Provides a WYSIWYG editor for arranging UI components, binding data fields and adjusting layout without code, enabling visual refinement after generation.
- Full-Stack Scaffolding: Produces both front-end and backend boilerplate (pages, APIs, and database models) so generated apps include server-side logic and persistent storage ready for use or further customization.
- Prebuilt Components and Templates: Includes reusable UI components and starter templates for common app types (dashboards, forms, landing pages) to accelerate development and maintain consistency.
- Instant Preview and Iteration: Lets users preview apps in-browser immediately after generation or edits, facilitating rapid testing and iterative refinement of workflows and UIs.
- Integrations and API Connectivity: Enables connecting generated apps to external services and APIs (webhooks, third-party data sources) to extend functionality and integrate existing systems.
- One-Click Deployment (Scaffolded): Automatically prepares apps for hosting and deployment so prototypes can be published as live websites or internal tools with minimal setup.
- Collaboration and Sharing: Supports sharing app previews or project links for feedback and collaborative iteration among team members and stakeholders.
- Prompt-to-app generation: convert natural-language descriptions into working applications
- Drag-and-drop visual editor for building full-stack applications without coding
- Website generation capability (create websites from prompts or visual design)
- Code-free app builder workflow intended for rapid prototyping and non-developers
Best for
- Rapid Prototyping: Turn a product idea described in plain language into a clickable prototype or MVP within minutes for user testing and stakeholder demos.
- Internal Tools: Build custom, data-driven internal apps (admin dashboards, CRMs, inventory tools) without hiring engineers, using generated backends and forms.
- Landing Pages and Microsites: Generate marketing landing pages and campaign microsites quickly from prompts or templates, then publish with built-in deployment.
- Startup MVPs: Create minimal viable products that include front-end, API endpoints and data models to validate business ideas before investing in full engineering.
- Form and Workflow Automation: Construct multi-step forms and automated workflows to capture data, trigger API calls or route submissions without custom code.
- Client Proposals and Demos: Produce working app demos for clients or prospects by describing required features and iterating visually to match requirements.
- Rapid prototyping of web apps and MVPs using natural-language prompts
- Non-developer creation of landing pages and simple full-stack applications
- Internal tooling or lightweight apps built via visual editor
- Education and onboarding for users learning app design without coding