Framefields vs Praex: Features, Pricing & Which Is Better (2026)

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

Framefields

Gatewai

Free

Open-source TypeScript framework that lets coding agents write, check and render GPU-accelerated video to MP4.

GPU Rendering to MP4: Frames render directly to a GPU texture rather than via headless Chromium, using far less memory per worker.
Resolution-Independent Type: Glyph outlines solved per pixel stay crisp from 10 px to 10,000 px, with letter-by-letter animation selectors.
Integrated 3D: A camera aligned 1:1 with 2D pixels, PBR materials, shadows, bloom and OBJ, FBX, glTF, STL, PLY and VOX models.
50+ Effects: Curves, levels, 3D LUTs, halftone, film grain, mesh warp, glass, track mattes and scene transitions.
On-Device Vision: Detection, segmentation, pose and person mattes through ONNX for tracking and reframing.
Live WebGPU Preview: Scrub frame by frame and pin notes on the picture for the agent to apply.
Audio on the Same Clock: Frame-accurate soundtrack layers and procedural sound effects.
Tests for Motion: Render frame grids and assert on pixels or frame changes in Vitest.

Agent-Made Videos: Having a coding agent produce launch or explainer videos from a prompt.
Data Visualization Video: Animating line, bar, scatter and candlestick charts.
Social Reframing: Converting 16:9 footage to 9:16 with tracked subjects.
Product Demos: Compositing 3D models and motion graphics into product films.
Automated Video Pipelines: Rendering repeatable MP4s in CI with tested animations.

Freemium

Open-source AI coding copartner with its own Velox, Faber and Lucia models, available in terminal, mobile and web.

Own Model Family: Velox II, Faber II and Lucia II are tuned and served by Praex on its own infrastructure, sized from quick edits to frontier-scale problems.
Terminal CLI: Install with a one-line script and let the agent read files, run commands, edit code and verify tests directly in your terminal.
Cross-Device Sessions: Start a task in the terminal, steer it from your phone and review it on the web with the same agent, memory and session.
Bring Your Own Keys: Run Praex on any model with your own API keys or hardware at no extra cost.
Open-Source Core: The CLI is an MIT-licensed fork of opencode, so the agent harness can be inspected and modified.
No Sign-Up Chat: Start chatting on the web with the free Velox II model without creating an account.

Fixing Failing Builds: Hand the agent a broken deploy and let it read configs, run tests and patch source until tests pass.
Everyday Quick Edits: Use the free Velox II model for instant answers and small code changes in the terminal.
Deep Reasoning Tasks: Escalate to Faber II on Pro for complex coding and multi-step reasoning.
Mobile Task Steering: Kick off a refactor at your desk and monitor or redirect it from your phone.
Self-Hosted Workflows: Point the CLI at your own models or keys to keep code on infrastructure you control.