fx vs Miora: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of fx and Miora — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

fx

Vercel Labs

Free

Vercel Labs' tiny open-source coding agent — a ~6 MB native CLI written in Zig, built for speed, embeddability and Unix-style ergonomics.

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.

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.

Tencent

Free

Tencent's AI creative agent studio that generates images, video, UI/UX, and 3D on one editable canvas with persistent brand memory.

Multi-Modal Canvas: Images, video, UI/UX, and 3D are generated and edited on the same editable canvas — no tool switching.
Agent Orchestration: A single brief spawns multiple specialized Skills (agents) that collaborate to deliver a full asset pack.
Persistent Brand Memory: Retains logos, palettes, and style across projects so visual consistency holds across campaigns.
Natural-Language Brief: Describe the deliverable in plain language and Miora plans the sub-tasks across image, video, and 3D agents.
Production-Ready Output: Compresses weeks-long creative cycles into hours by handing back an asset pack ready for use.
Unified Project Workspace: The entire creative project lives on one canvas so context, references, and iterations stay in one place.
Video + 3D Generation: Native support for video and 3D means storyboards and product visuals live alongside static graphics.
International Beta Access: Available globally via miora.design during the current beta phase.

Campaign Asset Packs: Brief Miora once and receive a coordinated set of key visuals, video cutdowns, and UI mockups for a launch.
Brand-Consistent Content: Rely on persistent brand memory to keep every generated asset on-palette across weeks of campaign work.
Product Visualization: Combine 3D generation with UI screens to prototype a product page or launch keynote inside one canvas.
Storyboard to Video: Sketch a storyboard on the canvas and let video agents extend selected frames into short-form video.
Design + Marketing Handoff: Keep both design and marketing in the same workspace so approvals and revisions never leave the canvas.
Rapid Concept Exploration: Iterate on multiple visual directions at once — image, motion, and 3D — without spinning up separate tools.