You can get a beta of the FO4 GECK. It was posted on the official Bethesda forum.
How to get it

Code:

https://community.bethesda.net/thread/7221

Hell Yeah! I hope it works well, the mods may finally start flooding in! Nice find mate!

Not long now until we get some cool mods!

At first I thought this was a belated April Fools joke but thankfully it's not. Thanks for sharing this!

cant wait for this to release

This looks awesome, but I think i'll wait for a while. BETA testing is a pain in the ass; i'll rather have the full product or at least something close to it. But I think modders should download ths ASAP.

@Evmeister wrote:

At first I thought this was a belated April Fools joke but thankfully it's not. Thanks for sharing this!

How can it be an April Fools joke when it's not April 1st?

Also, the staff actually did that on the day. Posted about the G.E.C.K being released, only to find out that it was a Rick Roll.

Thanks for the news! I might give a shot at making/porting a mod once I get home.

Thanks for the info I wouldn't have known about it if you hadn't mentioned it. Hopefully I can get in. Damn you bethesda

The Creation Kit is now officially out, as part of the 1.5 Update for Fallout 4.

Modding is now in Open Beta, but I expect great things to come soon!

Let the gates flood with mods and more mods

Beth-Net?...

....-sniff sniff- I smell capitalism in the air. Am I not the only one?

@Legend wrote:

Beth-Net?...

....-sniff sniff- I smell capitalism in the air. Am I not the only one?

Nope, I'm concerned too. What will this mean for privately hosted mods?

@Archangel470 wrote:

@Legend wrote:

Beth-Net?...

....-sniff sniff- I smell capitalism in the air. Am I not the only one?

Nope, I'm concerned too. What will this mean for privately hosted mods?

Well, if it's anything like last time.... Beth will backpedal hardcore when the dog-pile gets big enough, methinks.

Lets get started then

Wow, and I just got back into modding over the weekend.

ayylmao, dreams do come true

Also breaking news.

Fallout 4 Console Mods Are Releasing In The Next Two Months. Thanks to Kotaku for the source.

And fuck me lads, i never knew that this is going to work. I never knew mods would come to the console i just thought it was bullshit talk. AND OMG EVEN RETEXTURES WILL BE ON THE XBONE AND PS4!! HOW IS THIS POSSIBLE??? Sorry for the caps but this is really hard for me to bealive.

One part of me is happy, the other part is just confused.

Anyways here is the article from Koraku.

http://www.kotaku.co.uk/2016/04/26/fallout-4-console-mods-releasing-in-the-next-two-months

Guess it's time to go back to Commonwealth once more and this time for good!

Ladies and gentlemen! Boys and girls, dogs and cats, and kajhits and argonians. With the creation kit 2.0 out now in beta I am in need of great modders. 

 I'm the project lead for a frontier sized mod for fallout 4. it's to feature the story that shows the fate of an old friend and will consist of many, many different choices, factions, quests, and new features of gameplay. We have people who have the fortunate luck to already be working on the fallout 4 geck beta. We're currently in the process of writing dialogue for the planned npcs with yours truly being the head writer. we've already planned out the entire main quest line and faction quest line but we are in need of expert modders and we are wondering if you'd like to join.

damn to bad i only have the xbox version guess i have to wait till may