10 Best AI Ad Networks for ChatGPT and AI Chatbot Ads in 2026

What Is an AI Ad Network?

An AI ad network sells sponsored placements inside AI assistants, chatbots, and agents, matched to the live conversation instead of a typed keyword. In October 2026 that means OpenAI's ChatGPT Ads auction, AI placements inside Google, Microsoft, and Amazon campaigns, and independent networks such as Koah and Gravity that monetize third-party AI apps like Liner and DeepAI.

Most guides blur three businesses under one label. First-party inventory: OpenAI sells ChatGPT placements through its own Ads Manager. Folded-in inventory: Google AI Overviews and AI Mode, Microsoft Copilot, and Amazon Rufus pull ads from campaigns you already run. Independent inventory: networks ship an SDK inside AI apps and sell those slots.

Each layer reads intent differently. Google considers both the query and the content of the AI Overview. Microsoft says Copilot weighs the entire conversation, not only the last prompt. Koah matches campaigns to "ContextMatch" themes, and Gravity matches them to conversations you describe in plain language.

The plumbing is covered in LLM ad infrastructure explained, and the assistant-by-assistant view lives in which AI assistants have ads in 2026. Every entry below sells placements inside an AI conversation, answer, or agent flow as of October 18, 2026, and traces to company documentation or major trade press.

Where Can You Advertise in AI Chatbots in 2026?

You can advertise in AI chatbots in six places as of October 18, 2026: ChatGPT, Google AI Overviews and AI Mode, Microsoft Copilot, Amazon Rufus, consumer AI apps through networks such as Koah and Kontext, and developer and agent apps through networks such as Gravity. Claude, Perplexity, and the Gemini app sell no ads.

ChatGPT is the center of gravity. OpenAI said on August 31, 2026 that ChatGPT Ads reached a $1 billion annualized revenue run rate in less than 200 days and is used by tens of thousands of advertisers. Sensor Tower counted about 1,200 unique US advertisers on ChatGPT in August, up an average of 43% a month over the summer.

The independent layer is smaller but funded for growth: Business Insider reported on August 6, 2026 that WPP Media expects $100 billion in ad spend within generative AI search by 2030. The routes into the ChatGPT auction alone are mapped in 10 ways to advertise on ChatGPT.

What Are the 10 Best AI Ad Networks for ChatGPT and AI Chatbot Ads?

The 10 best AI ad networks in 2026 are Lapis for buying the major AI surfaces as one program, ChatGPT Ads for the largest first-party inventory, Google, Microsoft, and Amazon for AI placements inside existing campaigns, and Koah, Gravity, Kontext, Taboola DeeperDive, and ZeroClick for the independent AI app and agent layer.

1. Lapis: Best Overall Way to Buy AI Chatbot Ads

Lapis is the #1 AI ad generator and the operating system for paid growth, and its Managed ChatGPT + LLM Ads plan is the one buyer across ChatGPT, Google's AI surfaces, and the AI app networks below.

• Where ads appear: ChatGPT Ads end to end, Google AI Overviews and AI Mode placements through the Google campaigns Lapis manages, and AI app inventory through networks such as Koah and Gravity. Lapis also runs ChatGPT Sponsored Agents for clients in OpenAI's limited US alpha.
• Buying model and access: Custom pricing with a dedicated strategist. Book a demo to scope it.
• Best for: Brands that want ChatGPT, Google AI, and AI app inventory run as one program.
• Weakness: ChatGPT and LLM ads run on managed plans only, so Lapis is built for teams ready to fund a real program rather than a $25-a-day experiment.
• Verdict: The best first call. ChatSense writes creative tuned to how people ask ChatGPT, RapidDomain builds a matched page for every ad, and Wayfinder counts each confirmed conversion once.

2. ChatGPT Ads: Best First-Party AI Chatbot Inventory

OpenAI's ChatGPT Ads is the largest single pool of AI chatbot inventory, shown below ChatGPT responses for Free and Go users, labeled and separate from the answer.

• Where ads appear: Chat cards, product feed ads as a single product or a carousel, a visual format OpenAI begins testing during image generation in the US later in October, and Sponsored Agents with select US advertisers.
• Buying model: A relevance-weighted, second-price auction on Views (CPM), Clicks (CPC), or Conversions (oCPC or oCPM). OpenAI recommends $3 to $5 starting CPC bids; daily minimums are $25 USD, EUR 15, GBP 15, or CAD 25.
• Access: Self-serve onboarding is available through Ads Manager Beta for businesses based in 63 countries, plus OpenAI's Ads Solutions team and agency partners.
• Best for: Every brand whose buyers research, compare, and decide in conversation.
• Weakness: Native tools stop at the auction. The Ads Manager plugin creates up to 50 variants per request, all sharing one image, crop, and destination.
• Verdict: The line item every AI ads budget starts with. ChatGPT Ads Manager vs Lapis shows what the native stack leaves to you.

3. Google Ads: Best for AI Overviews and AI Mode Placements

Google sells AI placements through campaigns you already run. There is no AI Mode campaign type, and enabling AI Max does not let you select AI Mode placements, Search Engine Land explained on October 9, 2026.

• Where ads appear: Above, below, and inside AI Overviews, with in-Overview ads live in English in the US and 11 more countries, including Canada, Australia, and India. AI Mode tests include Conversational Discovery ads, Highlighted Answers, Business Agent for Leads, and, since October 16, ads for users who connect apps through Personal Intelligence.
• Buying model and access: The self-serve Google auction, drawing on Search, Shopping, Performance Max, and AI Max campaigns.
• Best for: Advertisers already running broad match, AI Max, Performance Max, or Shopping.
• Weakness: No opt-out, no clean placement report, and no in-Overview ads for sensitive verticals such as finance and healthcare.
• Verdict: Mandatory if you already spend on Google. Tune the feeding campaigns with the best AI tools for Google Ads.

4. Microsoft Advertising: Best for Copilot Answers

Microsoft serves ads below Copilot's organic response from your existing campaigns, and it opts every eligible campaign and ad type in automatically.

• Where ads appear: Below Copilot answers, plus Offer Highlights, launched April 21, 2026 for retail in English-speaking markets, which surface differentiators such as free shipping. Showroom ads run as a pilot.
• Buying model and access: The self-serve Microsoft auction. Multimedia ads, Product ads, and Search ads with logo extensions are eligible, and negative keywords apply.
• Best for: Retailers with Merchant Center feeds and B2B brands whose buyers work in Microsoft tools.
• Weakness: Microsoft states it does not currently support specific metrics for ads served in Copilot.
• Verdict: Keep Performance Max and feeds healthy so you stay eligible, and judge Copilot on blended Microsoft results.

5. Amazon Ads: Best for Rufus Shopping Conversations

Amazon turned Rufus into ad inventory with zero setup. Sponsored Products prompts and Sponsored Brands prompts reached general availability in the US on March 25, 2026.

• Where ads appear: Prompts in shopping results and on product pages that open a Rufus dialog or answer on the page, and, since June 11, 2026, sponsored ads inside Alexa for Shopping, which combines Rufus with Alexa+.
• Buying model and access: Auto-enrolled CPC inside existing Sponsored Products and Sponsored Brands bids for US sellers and vendors, with a prompt-level report covering spend, sales, ACOS, and ROAS.
• Best for: Any brand that sells on Amazon.
• Weakness: Every click lands on Amazon, so you build Amazon rank, not your own customer list.
• Verdict: Free upside on campaigns you already fund. Andy Jassy said on Amazon's April 2026 earnings call that nearly 20% of shoppers who interact with a brand prompt continue the conversation about that brand.

6. Koah: Best Self-Serve Network for Consumer AI Apps

Koah calls itself "AdSense for AI." It raised a $5 million seed led by Forerunner in 2025 and a $20.5 million Series A led by Theory Ventures on February 24, 2026, after processing 170 million queries and 35 million native ad impressions in 12 months.

• Where ads appear: Sponsored recommendations inside apps such as Liner, Luzia, Heal, and DeepAI, as action cards, image cards, polls, expandables, and catalogs.
• Buying model and access: Self-serve campaigns by objective, targeted with ContextMatch themes. Koah's guide recommends 20 to 50 themes per ad group and a $50 to $100 daily start.
• Best for: Consumer brands that want long-tail AI app reach at a low entry price.
• Weakness: Koah publishes no advertiser country rule and no per-app delivery report, per Digital Traction's September 26 review.
• Verdict: The best independent first test, and one of the networks Lapis buys inside Managed ChatGPT + LLM Ads.

7. Gravity: Best for Developer Tools, AI Search, and Agents

Gravity runs a demand-side platform, a supply-side platform for AI app developers, and an exchange. Business Insider reported on August 6, 2026 that it raised a $30.5 million Series A co-led by Lightspeed Venture Partners and Committed Capital, for $38.5 million in total.

• Where ads appear: Text ads inside chat apps, AI search, and coding assistants such as Codebuff, for advertisers including Best Buy, Target, Vercel, and MongoDB. Gravity is also testing agent-to-agent ads that humans never see.
• Buying model and access: Self-serve. Awareness runs on CPM and conversions on Target CPA in a second-price auction, targeted by topics, keywords, AI platform categories, and countries.
• Best for: Developer tools, SaaS, and commerce brands preparing for AI agents as buyers.
• Weakness: Its API sums results across publishers, so per-app delivery stays opaque.
• Verdict: The strongest independent network for technical audiences, with a pixel and a server-side conversions API built in.

8. Kontext: Best for Programmatic Buyers

Kontext generates each ad in real time from the conversation it appears in. It raised a $10 million seed led by M13 in August 2025, and Adweek reported it works with brands including Amazon, Uber, and Canva.

• Where ads appear: Branded native units beneath chatbot responses in apps such as DeepAI, Liner, SpicyChat, and Chai.
• Buying model and access: Campaigns set up by email, or curated private marketplace deals through PubMatic, its first SSP since December 9, 2025. Kontext advertises rates from $3 CPM.
• Best for: Programmatic teams that want AI chat inventory inside an existing DSP workflow.
• Weakness: Kontext describes its audience as primarily Gen Z and Millennials, a weak fit for B2B.
• Verdict: The cleanest programmatic door into AI chatbots for youth-skewed consumer brands.

9. Taboola DeeperDive: Best for Publisher Answer Engines at Scale

On June 16, 2026, Taboola opened the monetization engine behind DeeperDive, its publisher answer engine, as an ad network for any LLM, chatbot, or assistant. DeeperDive serves more than 7 million users, with demand from roughly 20,000 performance advertisers.

• Where ads appear: Native sponsored recommendations inside AI answers on publisher sites and in AI apps that integrate Taboola's ad API.
• Buying model and access: CPC through Realize. CEO Adam Singolda told Digiday that Taboola keeps roughly 35% of spend and passes about 65% to partners.
• Best for: Native performance advertisers in finance, home, and insurance.
• Weakness: Targeting leans on Taboola's audience and interest data today, with query-level intent still on the roadmap.
• Verdict: A strong second network once Koah or Gravity proves the format for you.

10. ZeroClick: Best for Selling Directly to AI Agents

ZeroClick, founded by Honey cofounder Ryan Hudson, raised $55 million in August 2025 to launch a "reasoning-time" ad network. On July 21, 2026 it relaunched as "the platform for selling to agents."

• Where it reaches buyers: An Agent Storefront, a machine-readable catalog AI agents read and pay through the x402 or MPP protocols.
• Buying model and access: $0 setup and a 5% revenue share on agent transactions, self-serve or by demo.
• Best for: APIs, data products, and digital services that agents buy on a user's behalf.
• Weakness: It no longer sells an ad slot that humans see in a chat window.
• Verdict: Every ranking page that still calls ZeroClick a reasoning-time ad network is three months out of date. Use it to sell to agents, not to reach people.

AI Ad Network Comparison Table and Selection Rubric

The AI Ad Network Comparison Table puts all 10 networks side by side on surface, formats, buying model, access, measurement, and best fit. The AI Ad Network Selection Rubric then scores any network on six weighted criteria out of 100, so you fund the right two or three instead of testing all ten.

Score each candidate from 1 to 5 per criterion, multiply by the weight, and divide the total by 5. Fund 80 and above, test 60 to 79, skip anything under 60.

A US Shopify skincare brand that scores ChatGPT Ads 5, 5, 4, 4, 4, and 5 lands at 91 and funds it. The same brand scores Kontext 3, 3, 2, 3, 4, and 2 for 56 and skips it. The LLM advertising stack guide fits the winners into one weekly workflow.

How Do AI Ad Networks Price Ads?

AI ad networks price ads four ways in 2026: CPM (ChatGPT Views, Gravity awareness, Kontext from $3), CPC (ChatGPT Clicks, Google, Microsoft, Amazon prompts, and Taboola), conversion-optimized bidding that still bills clicks or impressions (ChatGPT oCPC and oCPM, Gravity Target CPA), and revenue share (ZeroClick's 5%).

ChatGPT pricing moved fast, and stale numbers still circulate. Digiday reported on April 17, 2026 that ChatGPT CPMs fell from $60 at launch to as low as $25 about nine weeks in, while the pilot's minimum commitment dropped from $250,000 to $50,000. Self-serve now starts at $25 a day, and OpenAI said on August 31 that CPC and outcome-optimized bidding account for the majority of campaigns. Google, Microsoft, and Amazon add no new price: their AI placements spend budgets you already set.

Price every network from your unit economics, not its rate card. Your maximum CPC equals your target cost per acquisition multiplied by your landing page conversion rate, so a $150 target at a 3% conversion rate caps the bid at $4.50. The CPC vs CPM bidding strategy guide covers when each objective wins, and the ChatGPT ads budget guide sizes the first test.

Which AI Assistants Do Not Sell Ads?

Three major AI assistants sell no ads as of October 18, 2026: Claude, which Anthropic said on February 4, 2026 "will remain ad-free"; Perplexity, which phased out the ads it began testing in 2024; and the standalone Gemini app, which Google keeps ad-free while it monetizes AI Mode and AI Overviews.

Anthropic made ChatGPT's ads the theme of its first Super Bowl campaign, tagline "Ads are coming to AI. But not to Claude," CNBC reported. Perplexity dropped ads because even labeled ones make users doubt the answer, Search Engine Land reported, citing the Financial Times.

Gemini is the one to watch. Google's chief business officer Philipp Schindler said on April 29, 2026 that "a format that works well in AI mode would transfer successfully to Gemini app," while stressing Google is "not rushing anything." Plan on zero Gemini app inventory in 2026.

ChatGPT itself stays ad-free for Plus, Pro, Business, Enterprise, and Edu accounts, for accounts identified as under 18, and near sensitive topics such as health, mental health, and politics. The trust debate behind these choices is in does Claude have ads. For ad-free assistants, organic visibility is the only route in: see paid ads vs organic mentions in ChatGPT and 15 ways to get your business recommended by ChatGPT.

How Do You Choose an AI Ad Network?

Choose an AI ad network by fit, not novelty: start with ChatGPT Ads because it holds the largest audience, keep the Google, Microsoft, and Amazon placements your campaigns already reach, then fund one or two independent networks that score 80 or higher on the rubric.

1. Map where your buyers ask. Run 20 real buyer questions through ChatGPT, Google AI Mode, Copilot, and the AI apps your audience uses, and note which show sponsored units.
2. Fix measurement first. Install the OpenAI Pixel and Conversions API, plus each network's pixel and server-side events. The conversion tracking guide covers deduplication.
3. Score every candidate on the rubric. Kill anything under 60 before it costs a dollar.
4. Write by situation, not keyword. ChatGPT context hints, Koah ContextMatch themes, and Gravity context descriptions all reward plain-language buyer situations. The context hints guide covers the What, Who, When method.
5. Fund every test properly. Budget at least $3,000 a month per network.
6. Send every ad to a matched page. A generic homepage wastes the intent the conversation created.
7. Judge on confirmed revenue. Compare networks on cost per confirmed new customer from your CRM or store, never on each network's own conversion column.

Step seven is where most teams fail: every network's pixel claims the same sale. The ChatGPT ads ROI framework shows how to dedupe them.

How Should You Split a $50,000 Monthly AI Ads Budget?

Split a $50,000 monthly AI ads budget by intent and measurability: put 44% into ChatGPT Ads, 24% into Google's AI surfaces, 12% into Amazon, 8% into Microsoft, and 12% into two independent AI app networks, then move money every 30 days toward the lowest cost per confirmed new customer.

Take a US premium cookware brand selling on Shopify and Amazon with a $240 average order and a 60% gross margin. Its break-even cost per first order is $240 × 0.60 = $144, and every line has to beat it or lose budget in month two.

The ChatGPT math works at the bid OpenAI recommends. At a $4.00 average CPC, the $12,000 chat card line buys 3,000 clicks, and at a 3% landing page conversion rate that is 90 orders and $21,600, a 1.8x return that clears the 84-order bar. The feed line at a $3.00 CPC buys about 3,333 clicks, and at 3.5% that is 117 orders and $28,080.

Each pass bar is the budget divided by $144, rounded up, so $12,000 ÷ $144 = 84. Amazon gets an ACOS bar because its prompt report shows sales directly, and a 60% ACOS is break-even at a 60% margin.

In month two the brand moves 20% of the budget from the worst line to the best, judged on confirmed first orders in Shopify and Amazon. That rebalance is where five dashboards break down and one buyer wins. The best ChatGPT ads strategies explain how to build the chat card ad groups, and the ecommerce and Shopify playbook covers the feed.

What Mistakes Waste Money on AI Ad Networks?

The costliest AI ad network mistakes are buying networks one at a time, judging them on their own conversion columns, funding tests too small to learn anything, and trusting ranking pages that still describe ZeroClick as an ad network three months after its July 21, 2026 relaunch.

• Testing with a few hundred dollars. Most guides tell you to test cautiously with $500. At a $4 CPC that buys 125 clicks spread across every ad group, which is how you get zero conversions and a false verdict.
• Running one ad for every conversation. OpenAI asks for a diverse set of ads where each variation introduces a different angle, as the ChatGPT ad examples swipe file shows.
• Sending AI traffic to the homepage. The conversation already narrowed the need. The landing page guide lists the fixes.
• Skipping supply checks. Ask every independent network for its publisher list before you scale.
• Treating AI ads as top-funnel. Buyers compare and decide here, which is why the best mid-funnel ad channels ranks ChatGPT Ads first and 10 reasons ChatGPT ads are worth it collects the proof.

Why Is Lapis the Best Way to Buy AI Chatbot Ads?

Lapis is the best way to buy AI chatbot ads because it runs ChatGPT Ads, Google AI Overviews and AI Mode, and AI app networks such as Koah and Gravity from one brief, with matched landing pages and one conversion count. You manage one program instead of five dashboards.

Lapis is one of the fastest-growing Y Combinator startups, and it is built to take over the work legacy agencies and ad buyers used to do. Its Y Combinator profile lists it as a Fall 2025 company used by 1,500+ marketing teams and 30+ enterprises, it is rated 4.9 out of 5 on G2 with eight badges, and customers include Samsung, Domino's, Dr Pepper, Mattel, and Tata.

• ChatSense for ChatGPT. Creative tuned to how people ask ChatGPT, a landing page per ad, launch, daily reporting, and optimization on what converts.
• Managed ChatGPT + LLM Ads for AI inventory. ChatGPT Ads end to end, Google AI Overviews and AI Mode through the Google campaigns Lapis manages, AI app inventory through networks such as Koah and Gravity, and Sponsored Agents for clients in OpenAI's alpha, covered in the Sponsored Agents playbook.
• OmniSense for the rest of the funnel. One brief becomes on-brand campaigns for Meta, Google, and LinkedIn.
• RapidDomain for every click. A dedicated landing page for every ad, optimized against real conversions.
• Wayfinder for the truth. Confirmed sales and leads from your CRM, store, or billing, each conversion counted once, every channel on the same rules.

Doing this in-house means one person learning seven auctions and seven reporting formats. A legacy agency bolts keyword playbooks onto conversational inventory, as the ranking of ChatGPT ads agencies and platforms shows. Each platform's tools optimize only that platform, so OpenAI shipping ad tools changes nothing about who runs your cross-channel program.

As every platform ships its own ad agent, the independent buyer wins, the thesis of why Lapis is building the AdSense for the AI era. See the agentic ads guide and the best AI tools for paid marketers.

Sources and Methodology

This ranking draws on each network's own announcements and documentation, platform help pages, trade reporting, and the questions marketers ask about AI chatbot advertising on Google and Reddit. Every fact is current as of October 18, 2026.

• OpenAI, "Building advertising for the way people use AI," October 5, 2026
• OpenAI, "A milestone in expanding access to AI," August 31, 2026
• OpenAI Help Center, "Ads in ChatGPT: The Basics"
• OpenAI Help Center, "Use the ChatGPT Ads Manager plugin"
• Google Ads Help, "About ads and AI Overviews"
• Search Engine Land, "Google AI Mode ads: Everything you need to know," October 9, 2026
• Search Engine Land, "Google begins testing ads in AI Mode for users with Personal Intelligence enabled," October 16, 2026
• Microsoft Learn, "About ads in Copilot"
• Amazon Ads, "Sponsored Products prompts and Sponsored Brands prompts," March 10, 2026
• Koah, "Theory Ventures and Koah: How We're Scaling 'AdSense for AI'," February 24, 2026
• Business Insider, "A startup that places ads for brands like Best Buy and Target in AI platforms raised $30.5 million," August 6, 2026
• PubMatic, "PubMatic and Kontext Partner to Open Programmatic Access to AI-Powered Conversational Inventory," December 9, 2025
• Digiday, "Taboola expands DeeperDive into an ad network for AI apps and agents," June 16, 2026
• ZeroClick, "It's time to sell to AI agents," July 21, 2026
• Digiday, "'Everything is coming down': ChatGPT ads are getting cheaper," April 17, 2026
• PPC Land, "ChatGPT ads pass $1bn run rate as financial services spend triples," September 3, 2026
• Digital Traction, "Independent AI ad networks: what a US business can buy, and whose apps the files confirm," September 26, 2026
• Anthropic, "Claude is a space to think," February 4, 2026
• CNBC, "Anthropic takes aim at OpenAI's ad push in Super Bowl commercial," February 4, 2026
• Search Engine Land, "Perplexity stops testing advertising," February 18, 2026
• Business Insider, "Google says it's open to putting ads in Gemini," April 29, 2026

Related Lapis Resources

• Which AI Assistants Have Ads in 2026? ChatGPT, Gemini, Copilot, Perplexity
• What Is LLM Ad Infrastructure? 4 Layers Explained (2026)
• How to Build an LLM Advertising Stack: Tools, Workflow, and Budget (2026)
• Best ChatGPT Ads Agencies and AI-Native Platforms in 2026
• Why Lapis Is Building the AdSense for the AI Era