InvokeAI/docs/deprecated/2to3.md

:octicons-log-16: Important Changes Since Version 2.3

Nodes

Behind the scenes, InvokeAI has been completely rewritten to support "nodes," small unitary operations that can be combined into graphs to form arbitrary workflows. For example, there is a prompt node that processes the prompt string and feeds it to a text2latent node that generates a latent image. The latents are then fed to a latent2image node that translates the latent image into a PNG.

The WebGUI has a node editor that allows you to graphically design and execute custom node graphs. The ability to save and load graphs is still a work in progress, but coming soon.

Command-Line Interface Retired

All "invokeai" command-line interfaces have been retired as of version 3.4.

To launch the Web GUI from the command-line, use the command invokeai-web rather than the traditional invokeai --web.

ControlNet

This version of InvokeAI features ControlNet, a system that allows you to achieve exact poses for human and animal figures by providing a model to follow. Full details are found in ControlNet

New Schedulers

The list of schedulers has been completely revamped and brought up to date:

Short Name	Scheduler	Notes
ddim	DDIMScheduler
ddpm	DDPMScheduler
deis	DEISMultistepScheduler
lms	LMSDiscreteScheduler
pndm	PNDMScheduler
heun	HeunDiscreteScheduler	original noise schedule
heun_k	HeunDiscreteScheduler	using karras noise schedule
euler	EulerDiscreteScheduler	original noise schedule
euler_k	EulerDiscreteScheduler	using karras noise schedule
kdpm_2	KDPM2DiscreteScheduler
kdpm_2_a	KDPM2AncestralDiscreteScheduler
dpmpp_2s	DPMSolverSinglestepScheduler
dpmpp_2m	DPMSolverMultistepScheduler	original noise scnedule
dpmpp_2m_k	DPMSolverMultistepScheduler	using karras noise schedule
unipc	UniPCMultistepScheduler	CPU only
lcm	LCMScheduler

Please see 3.0.0 Release Notes for further details.