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Chat model · xAI

Grok 4.20

Included in Pro · came out March 2026

Send a photo or a file, get a straight answer

Grok 4.20 is a chat model from xAI that understands photos and reads documents. It answers straight away, which suits quick questions about something you can show it.

Chat with Grok 4.20

Grok 4.20 in numbers

What you can give it

  • Your wordsYes
  • PhotosYes
  • PDFs and filesYes
  • The webNot this one

Real answers

See how Grok 4.20 answers

We asked it the same everyday questions as every other model in chatmodel, one try each. This is exactly what came back.

My neighbour watered my plants for two weeks while I was away. Write a short, warm thank-you note I can leave with a small gift. Keep it under 80 words.

Here's a warm note you can use:

Dear Sarah,

Thank you so much for looking after my plants while I was away. They’re all looking happy and healthy thanks to your care! I really appreciate your kindness.

Enjoy the little gift — it’s just a small token of my gratitude.

Warmly,
[Your Name]

(68 words)

Answered in about 3 seconds · 56 words

Ask it yourself

The Grok family in chatmodel

The newest is Grok 4.6. Ordered by release date.

  1. November 2025Grok 4.1 Fast
  2. March 2026Grok 4.20You're here
  3. April 2026Grok 4.3
  4. July 2026Grok 4.5
  5. August 2026NewestGrok 4.6

What it's good for

Try it with one of these

Press “Try this” and chatmodel opens with Grok 4.20 selected and the message already written. Change any word you like.

Read a dashboard light

“I'm sending a photo of a warning light on my car dashboard. What does it mean, is it safe to keep driving, and what should I do next?”

Try this

Get the gist of a letter

“I'm uploading a letter from my energy company. Tell me in three lines what it says and whether I need to do anything.”

Try this

Fix a phone setting

“I'm sending a screenshot of my phone's settings. I want the text to be bigger and easier to read. Tell me exactly what to tap.”

Try this

Identify a cable

“I found this cable in a drawer. I'm sending a photo of both ends. What is it for, and do I still need it?”

Try this

In plain words

Grok 4.20 is a chat assistant from xAI. It understands photos and reads documents, and it answers straight away, without a thinking step.

So it’s handy when you have something to show it, a photo, a screenshot, a letter, and you want a quick, direct answer about it.

How to get the most out of it

  1. Take a clear photo. Good light, close up, and include any text or symbols.
  2. Ask one clear question about it. “What does this light mean?” beats “help”.
  3. Use screenshots for tech trouble. It can read what’s on the screen.
  4. Ask for the short version. It suits “in three lines” well.

How it compares with the rest of the family

Grok 4.1 Fast is lighter and can search the web but can’t see photos. Grok 4.3 is a more capable step up for photos and documents. Grok 4.5 adds web search and thinks before it answers. Grok 4.6 is newer still, and works with text only.

When to pick another model

For long documents, PDF chat is set up for it. For careful, step-by-step answers, try Grok 4.5 or Gemini 3.1 Pro.

Other models worth a look

Grok 4.3

xAI

Read the guide

Grok 4.5

xAI

Read the guide

Grok 4.1 Fast

xAI

Read the guide

Frequently asked questions

Can Grok 4.20 read photos and PDFs?

Yes. It understands photos, including screenshots, and it can read documents.

Does Grok 4.20 think before it answers?

No. It answers straight away. For questions that need careful thought, try Grok 4.5 or Grok 4.6.

Can it search the web?

No. Grok 4.1 Fast and Grok 4.5 can search the web.

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