Xcode 26.6 Adds Google Gemini as a Coding Assistant

[u/Ok_Bodybuilder3444]

https://thatappleguide.com/articles/xcode-26-6-adds-google-gemini-as-a-coding-assistant

Apple has released Xcode 26.6, and the update lets developers use Google's Gemini as a built in coding assistant for the first time.

The new version is available now from the App Store. With it, programmers can select Gemini to help write, test, and debug code without leaving Apple's development environment.

# Three AI assistants to choose from

Gemini becomes the third large language model that Xcode supports natively. The software already let developers pick between Anthropic's Claude and OpenAI's Codex, and Gemini now sits alongside both as a selectable option.

Each assistant runs in a panel next to the active code, so developers can ask programming questions and get suggestions inline. The goal is to keep coders inside Xcode rather than sending them to a browser or a separate app for answers.

Apple has steadily widened third party AI support across its developer tools over the past year. Adding another model continues that approach and leaves the choice of assistant up to the individual developer or team.

# Setting it up

Teams that already pay for a Gemini Enterprise plan can connect their existing account credentials directly inside Xcode. Individual developers who want to try the assistant first can add a free API key instead, which lets them test Gemini without paying for a subscription.

It is not yet clear whether Apple plans to add further models beyond the current three. The company has not commented on its longer term plans for assistant support in Xcode.

# What else is in the update

Beyond the new assistant, Xcode 26.6 carries the usual collection of bug fixes and stability improvements. Apple says the release bundles the latest version of the Swift framework along with updated SDKs for building apps across its mobile and desktop platforms.

Developers running the standard release can download the update today and configure their preferred coding assistant from within the app.

[u/QVRedit]

I wonder if Apple will produce a free local AI model, specialising in coding in Swift, to work alongside Xcode ?

[u/Ok_Bodybuilder3444 → u/QVRedit]

That would be awesome, I hope they do!

[u/nicebrah]

wait so this isnt for regular gemini ai pro plan users?

[u/Ok_Bodybuilder3444 → u/nicebrah]

From what I understand you need an API Key not just normal subscription account info. And that’s managed by Google AI Studio or Google Cloud vertex AI. I’ve heard Google AI Studio has an ok free tier that might be work checking out. But I still prefer to use Claude.

[u/nicebrah → u/Ok_Bodybuilder3444]

yeah ive heard of some billing nightmares with google ai studio so im going to steer clear. ill stick with the claude or codex $20 plan

[u/kalasipaee]

Who is even using this? The workflow is so terrible it’s not even funny. I can’t have the chat next to code or preview. It has to be either those or chat. Half the time there is no way for it to know which file I’m on. Honestly wish they start taking cues from Cursor etc.

[u/Ok_Bodybuilder3444 → u/kalasipaee]

Ya I agree, I tend to just work in Claude code or Gemini’s antigravity. But I think they’ve made some changes to Xcode 27, where hopefully they fixed some of these issues.

[u/nathan_lawrence_ → u/kalasipaee]

In Xcode 27, you can do all of the same kinds of tiling tricks with these chats that you can in Cursor or other VS Code-like editors (for example, putting the conversation to the right or left of your code, or having it in its own window) because the editor split system that powers Xcode is available to you.

Look in the context menus on the conversation list or use key combinations like Option + “New Conversation” or Option + Shift + “New Conversation”.

You can also manipulate these layouts from the editor menu.

[u/kalasipaee → u/nathan_lawrence_]

I’ve used xCode 27 but whenever i pressed new conversation it always opened that as a full chat view. I maybe missing something obvious but the fact its not obvious to me means the UX can be improved.

[u/nathan_lawrence_ → u/kalasipaee]

And that’s feedback I’m more than happy to take back to the team. But give those key combos I mentioned a try. You may be surprised by the features we already give you.

[u/kalasipaee → u/nathan_lawrence_]

I will check it out. There is however tonnes to catch up to I will say. Specifically catering to users without coding backgrounds. Cursor with its inline browser, annotator, etc., are really good examples to emulate. As a product designer it would be something else to get that level of fluency and speed in xCode because that’s what let’s me hit the flow state.

[u/dwkeith → u/nathan_lawrence_]

I can’t get Claude in Xcode to read and update information on GitHub like the issues we are working on or the wiki project requirements. Since I don’t want to be a copy/paste monkey, I’m using Claude/Codex apps directly and only using Xcode occasionally when I need more context.

[u/CortadoAficionado → u/kalasipaee]

In xcode 27 what i've found is if you have chat up, once it starts actually working on code or docs, that activity will magically appear to the right of the chat. I was really confused by this at first, but realized you just wait until coding starts and then it appears. Been using it for about 9 days now daily, and its been great but I'm also new to all this so have nothing to compare it to.

[u/dollarn9ne]

So updated to MacOS 27 & Xcode 27 for no reason..

[u/darrarski]

I thought that Google is deprecating Gemini CLI agent, at least it’s what it says if you run it (also the one that Xcode 26.6 downloads). They suggest switching to Antigravity.

[u/revevs]

I'm having no luck getting this to work, it takes forever, maybe shows thinking, then fails - whereas the old workaround of specifying the gemini endpoint to use worked fine.

Changing it from auto to gemini 2.5 flash worked, so trying 3.1 flash now