Google AI 2026: Gemini, Veo 3, Astra, NotebookLM & Imagen 4 Guide

Google launched more AI products in May 2026 than most companies launch in a decade. At Google I/O 2025 and through rolling updates into 2026, Google released a completely new family of AI models, autonomous agents, creative tools, and developer platforms — most of them available for free.

If you've been confused by the flood of announcements — Gemini 2.5, Veo 3, Project Astra, NotebookLM, Imagen 4, Jules, Flow, Project Mariner — this guide covers every product in one place. What it does, who it's for, how to use it, and how much it costs.

1. Gemini 2.5 Pro & Flash Free TierPaid Plans

Gemini 2.5 Pro sits at the very top of Google's model family. It scores at or near the top of every major AI benchmark — including coding (SWE-Bench), math (AIME), and reasoning. The key innovation is its thinking capability: before answering, the model reasons through the problem like a human working through scratch paper.

Gemini 2.5 Flash is the faster, cheaper version. It still has thinking capability (optional) but runs at a fraction of the cost — making it the right choice for most API use cases.

Gemini 2.5 Pricing

Real Use Cases — Gemini 2.5 Pro

• Complex coding: "Write a full Next.js API route that handles Stripe webhooks, verifies signatures, and updates a Supabase database." Gemini 2.5 Pro thinks through it step by step and delivers working code.
• Math and physics: Students use it for difficult calculus, statistics, and physics problems — it shows reasoning steps, not just answers.
• Long document analysis: 1 million token context window — paste an entire book, legal contract, or codebase and ask questions about it.
• Research synthesis: Feed it 20 research papers and ask it to identify contradictions, consensus, and gaps.

2. Gemini Live — Real-Time Conversation AI Gemini Advanced

Gemini Live is Google's real-time voice AI — and it's a step change from basic voice assistants. You speak naturally. Gemini responds in real time. You can interrupt it mid-sentence. It remembers context throughout the conversation.

More impressively, Gemini Live can see through your phone camera in real time (via Project Astra integration). Point your camera at a broken appliance and say "What's wrong with this?" — it analyzes and answers.

Use Cases — Gemini Live

• Hands-free research while commuting
• Real-time language translation (speak English, Gemini Live translates to Spanish in real time)
• Exam prep — quiz yourself verbally on any topic
• Live coding help while your hands are on the keyboard
• Walk through a room, point at objects — Gemini identifies and explains them

How to access: Open the Gemini app on Android or iOS → tap the headphone icon for Live mode. Requires Gemini Advanced ($19.99/month) for full features.

3. Deep Research Gemini Advanced

Deep Research is Gemini's autonomous research agent. Give it a complex research topic and it spends several minutes browsing the web, synthesizing information across dozens of sources, and delivering a structured report — with citations.

How It Works — Step by Step

1. Open Gemini Advanced at gemini.google.com
2. Type your research question (e.g. "Compare the best AI coding tools in 2026 by price, features, and limitations")
3. Select "Deep Research" mode from the dropdown
4. Gemini creates a research plan — you can edit or approve it
5. It browses the web autonomously for 3–10 minutes, visiting dozens of pages
6. Delivers a structured report with headings, data tables, and clickable citations
7. Export to Google Docs with one click

Use Cases — Deep Research

• Market research reports for business decisions
• Academic literature reviews
• Competitor analysis for your agency or business
• Investment research (compare companies, financials, news)
• Travel planning (research 10 hotels, compare prices, reviews, locations)

4. Google AI Mode in Search Free (Search Labs)

Google's AI Mode transforms Google Search from a list of blue links into a conversational AI research assistant. Ask complex questions, follow up with related questions, get AI-synthesized answers with source citations — all within Google.com.

AI Mode vs Standard Google Search

Example use: Type "What are the pros and cons of Zoho CRM vs Salesforce for a 10-person team with a $5,000/year budget?" — AI Mode synthesizes a structured comparison instead of showing 10 unrelated links.

How to enable: Go to labs.google.com → enable "AI Mode in Search" → search as normal. Available in the US first, global rollout ongoing in 2026.

5. Project Astra — Universal AI Agent Gemini Advanced

Project Astra is Google DeepMind's vision for a universal AI agent — an AI that can see, hear, and understand your world in real time through your device's camera and microphone.

Point your phone at anything — a code error on a screen, a math problem on paper, a broken appliance — and Astra sees what you see and responds naturally, like a knowledgeable person standing next to you.

What Astra Can Do

• Read and explain code errors visible on your screen
• Identify objects, plants, animals — point and ask
• Read handwritten notes and answer questions about them
• Watch you work and proactively suggest improvements
• Remember what it saw earlier in the conversation ("That circuit board you showed me earlier — the capacitor looks like it might be damaged")
• Translate signs, menus, or text in real time through the camera

Real example: A developer points their phone at a terminal error. Astra reads the stack trace, identifies the cause, and suggests a fix — all in under 5 seconds, verbally.

6. Project Mariner — AI Web Browsing Agent Gemini Advanced (Preview)

Project Mariner is Google's web browsing AI agent — built directly into Chrome. You give it a goal in plain English. It browses the web, fills out forms, clicks buttons, and completes multi-step tasks on your behalf.

What Mariner Can Do

• Find and book flights — you say "Find me the cheapest flight from Delhi to Dubai next Friday under $300" and Mariner searches, filters, and surfaces options
• Fill out multi-page forms autonomously
• Scrape and compile data from multiple websites
• Log into apps and complete repetitive tasks
• Compare products across multiple e-commerce sites

7. Jules — AI Coding Agent Free Waitlist

Jules is Google's autonomous AI coding agent, deeply integrated with GitHub. Unlike a copilot that suggests one line at a time, Jules takes entire tasks: "Fix all failing tests in this repository" or "Add dark mode to this React app."

Jules works asynchronously. You assign a task, it branches off, completes the work, runs tests, and opens a pull request — you review and merge.

Jules vs GitHub Copilot

How to access: Sign up at jules.google.com → connect GitHub → assign tasks in plain English.

8. Veo 3 — Text to Video with Audio Google One AI Premium / API

Veo 3 is Google DeepMind's text-to-video model — and it's the most realistic video generator available in 2026. What sets it apart from every competitor: Veo 3 generates audio too. Ambient sounds, dialogue, background music — all synchronized to the generated video.

Veo 3 vs Competitors

Veo 3 Use Cases

• Social media video ads — generate product videos from text descriptions
• Educational explainer videos with narration
• Film pre-visualization (storyboard scenes before filming)
• E-commerce product demo videos
• News and journalism B-roll footage

Example prompt: "A café in Paris on a rainy morning. Close-up of a steaming espresso cup. Background sounds of soft jazz and rain. Cinematic, golden hour lighting." → Veo 3 generates the video with all audio synchronized.

9. Google Flow — AI Filmmaking Tool Google One AI Premium

Flow is Google's AI filmmaking studio, powered by Veo 3. It goes beyond single clip generation — Flow lets you maintain consistent characters, scenes, and visual style across multiple shots to create a complete short film.

What Flow Can Do

• Generate clips with consistent characters across scenes (same face, same costume)
• Control camera movements (dolly in, wide shot, close-up)
• Chain scenes into a story with visual continuity
• Write and generate dialogue, ambient sounds, and music in one workflow
• Export professional-quality film clips

Who it's for: Content creators, filmmakers, marketing agencies, and anyone who wants high-quality video without a camera crew. Accessible at flow.google.com.

10. Imagen 4 — AI Image Generation Free via GeminiAPI Available

Imagen 4 is Google's text-to-image model. It generates photorealistic and artistic images from text descriptions. It handles small text in images better than any previous model (a longstanding weakness of AI image generators).

Imagen 4 Strengths

• Photorealistic portraits and product shots
• Legible text rendered within images (menus, signs, posters)
• Highly detailed scenes with consistent lighting
• Multiple aspect ratios (portrait, landscape, square)
• Inpainting — edit specific areas of an existing image

Imagen 4 vs DALL-E 3 vs FLUX

How to use for free: Open Gemini at gemini.google.com → type "generate an image of [description]" → Imagen 4 generates it directly in the conversation.

11. NotebookLM & NotebookLM Plus FreePlus: $19.99/month

NotebookLM is Google's AI research assistant and one of the most underrated tools in the Google AI suite. Upload your documents, PDFs, YouTube videos, websites, or Google Docs — NotebookLM studies them and becomes an expert on your specific content.

What NotebookLM Can Do

• Q&A on your documents: "What does page 47 say about the refund policy?" — it cites the exact source
• Study guides: Automatically generate summaries, flashcards, and practice questions from your content
• AI Podcast: Generate a realistic 2-host podcast conversation discussing your uploaded documents
• Briefing documents: Create executive summaries of lengthy reports
• Timeline creation: Extract and order key events from documents
• Mindmaps: Visualize how concepts connect across your sources

Step-by-Step: Create an AI Podcast from Your Blog Post

1. Go to notebooklm.google.com (free, sign in with Google)
2. Click "New Notebook" → Upload your blog post, PDF, or paste the URL
3. On the right panel, click "Audio Overview"
4. Click "Generate" — two AI hosts discuss your content
5. Download the MP3 or share the link — full podcast, no recording equipment needed

NotebookLM Free vs Plus

12. Google Beam — 3D AI Video Calls Enterprise

Google Beam (formerly Project Starline) is Google's AI-powered 3D video calling system. Using a specialized booth with multiple cameras and a light-field display, Beam creates the impression of a person sitting across a physical table from you — with full 3D depth and eye contact.

AI translates body language, converts your voice to any language in real time while keeping your exact voice tone, and generates video at 60fps with no lag. Google is partnering with HP to bring Beam booths to enterprise offices in 2026.

Who it's for: Enterprise sales teams, executive meetings, and global teams where "presence" matters. Not a consumer product — enterprise pricing, available through Google Workspace.

13. Gemma 3 — Open Source AI Models Free

Gemma 3 is Google's family of open source AI models — free to download, run, and fine-tune. They are compact (1B to 27B parameters) but punch above their weight on benchmarks, often outperforming models twice their size from other labs.

Run Gemma 3 locally with Ollama:

# Install Ollama, then pull Gemma 3
ollama pull gemma3:4b
ollama run gemma3:4b

# Use for coding
ollama run gemma3:12b "Write a Python function that validates email addresses"

14. Google AI Studio — Developer Platform Free

Google AI Studio is the web-based developer playground for Gemini models. It gives developers free API access to Gemini 2.5 Flash, with a generous free tier, and lets you test prompts, structured outputs, and function calling in a browser UI before writing any code.

What You Can Do in AI Studio for Free

• Test any Gemini model with any prompt
• Generate your API key (free, no credit card required)
• Test multimodal prompts (upload images, audio, video)
• Configure system instructions and see how they change outputs
• Auto-generate Python, JavaScript, or cURL code for any prompt
• Use Gemini 1.5 Flash at 15 requests/minute and 1 million tokens/day free

Start here: aistudio.google.com → Sign in with Google → Your first API call is free in minutes.

Full Google AI Pricing Table 2026

Step-by-Step: Start Using Google AI for Free Today

You don't need to pay anything to start. Here's the fastest path to using every free Google AI product right now:

Day 1 — Core AI Chat (5 minutes)

1. Go to gemini.google.com and sign in with your Google account
2. Ask a complex question — Gemini 2.5 Flash answers for free
3. Enable image upload and send a photo — test vision capability
4. Try Gemini Live on the Gemini mobile app for voice

Day 2 — NotebookLM Research (10 minutes)

1. Go to notebooklm.google.com → Create a notebook
2. Upload a PDF, paste a website URL, or connect a Google Doc
3. Ask it questions about your content — see how it cites sources
4. Click "Audio Overview" and generate an AI podcast about your content

Day 3 — Developer API (15 minutes)

1. Go to aistudio.google.com → Get API key (free)
2. Install the SDK: pip install google-genai
3. Run your first API call with Gemini 2.5 Flash — free up to 1M tokens/day
4. Test multimodal: send an image + question to the API

import google.generativeai as genai

genai.configure(api_key="YOUR_GOOGLE_AI_STUDIO_KEY")
model = genai.GenerativeModel("gemini-2.5-flash-preview")

response = model.generate_content(
    "Explain the difference between RAG and fine-tuning in simple terms for a beginner."
)
print(response.text)

Day 4 — Google AI Search Mode

1. Go to labs.google.com
2. Enable "AI Mode in Google Search"
3. Return to Google.com and search complex questions
4. Use the "AI Mode" tab for conversational answers with citations

For everything related to building AI systems on top of Google's stack, see our AI agents vs chatbots guide and our RAG vs fine-tuning breakdown.