The cheapest developer ad network
Short answer: on the figures each network publishes, VibeFree is the cheapest place to start - £1.99 per 1,000 verified views, with one block as the entire minimum. EthicalAds charges $3.10-$8.00 per 1,000 impressions behind a $1,000 minimum, Carbon Ads $6 per 1,000 with about a million impressions a month recommended, and daily.dev and Stack Overflow quote through sales. What VibeFree does not have is their reach.
Developer ad networks by price, cheapest first
| Network | Price per 1,000 views | Minimum to start | Notes |
|---|---|---|---|
| VibeFree (loader) | £1.99 per 1,000 views | £1.99 - one block of 1,000 views | Self-serve, card payment, no contract |
| VibeFree (end-of-response) | £12.99 per 1,000 views | £12.99 - one block of 1,000 views | Self-serve, card payment, no contract |
| VibeFree (other formats) | Per click, completed view, engagement, completion, respondent-minute or day, or CPA hybrid | One block of the format's own unit; each minimum shown in the console | Video, carousels, polls, embeds, chips, a brand agent and more |
| Carbon Ads | $6 CPM (developer audience) | 1,000,000 impressions/month recommended, prepaid | Managed buy - Carbon says it does not currently offer self-serve buying |
| EthicalAds | $3.10-$8.00 CPM by geo and topic | $1,000 minimum ad buy | Contextual topic and geo targeting, no tracking; CPM only |
| daily.dev Ads | Not published - quoted per company | A monthly plan (Starter, Growth or Scale) on an agreed term | Sales-led; targets by tech stack, seniority and geography |
| Stack Overflow | Not published - pricing on request | $15,000 for one month or $10,000 for three months, per its advertising policy | Sales-led, not self-serve |
| ChatGPT Ads | Not published - you bid a maximum CPM or CPC in an auction | $25 a day minimum budget (US) | Self-serve; a general audience, not developer-specific |
Which placement is the cheap one: The £12.99 end-of-response card is priced like a premium developer placement, not a budget one - it sits alongside the answer the developer asked for and stays on screen. The figure the comparison above turns on is the loader placement.
Competitor figures come from each network's own pricing, media-kit or policy pages, checked on 22 October 2026; where a network does not publish a rate, the table says so rather than quoting an estimate. VibeFree's minimum bid per block is an editable guardrail that adjusts with demand for each placement - the figures here are read from the live setting, and the campaign console enforces whatever it currently is. Rates change - verify current pricing directly with each network before deciding.
Why VibeFree is cheaper
- It owns the inventory. Every slot is inside an app VibeFree builds, so there is no publisher revenue share priced into the CPM.
- It is self-serve end to end. No insertion order, no sales call, no account manager to fund - the console is the whole sales process, and the card is only held until a person approves the campaign.
- It sells in blocks. A block is 1,000 views for CPM, 100 clicks for CPC, 10 completions for a lead or install - and one block of any format is the minimum. A network that needs a $1,000 minimum to be worth invoicing prices out every advertiser who only wants to test.
- The floor is a guardrail, not a rate card. The current minimum is £1.99 a block for the text loader unit and £12.99 for the end-of-response text unit; it moves with demand for each placement. Above it you pay exactly your own bid when you win - first price, no second-price discount.
What the price buys beyond a CPM
- 33 formats, not one unit. Text and image units, video, carousels, polls and quizzes, HTML5 embeds, follow-up chips, coding-agent moments, a brand agent that answers from your docs, a new-chat takeover and opt-in sponsored rewards - see the formats and specs.
- Pricing models to match the goal. CPM, CPC, cost per completed view, cost per engagement, per completion, per respondent-minute, per day, and a CPA hybrid paid on your own conversion data.
- Contextual targeting on the conversation. Each new message is classified into labels - the task, the languages and frameworks named, what the project needs - and campaigns can require or exclude them. Advertisers never see the messages. How contextual targeting works.
- A free sandbox. Preview creatives in every app, run a sample prompt through the targeting simulator, and test signed postbacks and webhooks before paying anything.
What you give up
Scale. VibeFree is a young network, and the live reach figures published on the advertisers page are small next to Stack Overflow, daily.dev or Carbon - they are also published rather than quoted on request, so you can judge them before spending anything. Stack targeting is contextual, read from what a turn is about; profile-based audiences such as skill level reach only people who switched on personalised ads. The trade is honest: much less reach, at a price where finding out costs one block.
When to pick another network
- You need volume this quarter and have the budget. Carbon, Stack Overflow and daily.dev all reach far more developers than VibeFree does today.
- You want no personalisation anywhere in the system. EthicalAds does no tracking at all; VibeFree is contextual by default but does offer personalised audiences to people who opted in.
- You want sponsored articles, company pages or a homepage sponsorship. daily.dev and Stack Overflow sell content and brand formats VibeFree does not.
Where the impressions actually appear
Inside the conversation: while the assistant works, beside the finished answer, as a sponsored follow-up chip, at the end of a coding task or after a failed build, on the new-chat and new-project screens, on the opt-in earn page and in the newsletter - every placement is listed here. Each ad group picks its surfaces - Web app, VS Code extension, Mobile app and Windows desktop app - at the same price per block.
- Web app - the vibefree.dev chat, in any browser.
- VS Code extension - the chat panel inside the editor.
- Mobile app - the Android app, on Google Play.
- Windows desktop app - the Windows app - buyable now, serving from launch.
Frequently asked questions
What is the cheapest way to advertise to developers?
Per impression, VibeFree: £1.99 per 1,000 verified views on the text loader unit, against $3.10-$8.00 per 1,000 at EthicalAds and $6 at Carbon Ads, the two developer networks that publish a rate. Per campaign the gap is wider, because the smallest published minimum elsewhere is EthicalAds' $1,000 buy and VibeFree's is one block.
Why is it cheaper than Carbon Ads or daily.dev?
Different economics, not a discount. VibeFree owns its own inventory - every placement is inside an app VibeFree itself builds - so there is no publisher revenue share to fund, no sales team to pay for, and no media-buying minimum needed to make an insertion order worth writing.
What do I give up by paying less?
Scale, mostly. VibeFree is a young network: the reach figures on the advertisers page are live and small compared with Stack Overflow, daily.dev or Carbon. Targeting is contextual by default - labels from the conversation, plus country, language, OS and editor - and profile-based audiences reach only the people who opted in to personalised ads, which is a smaller pool again.
Can I pay for results rather than impressions?
Yes. Besides CPM, VibeFree sells per click, per completed video view, per engagement (a poll vote, a first message to a brand agent), per completion (a lead, an install, a confirmed trial) and a CPA hybrid that pays a small amount per click plus the CPA when your own server reports a conversion by signed postback. Each sells in one block of its own unit.
Is cheap developer traffic worth buying?
It depends what the impression is. A VibeFree impression sits in the conversation a developer is actively reading while an AI answers them - in the editor, in the web app, or in an app on their phone - rather than in a sidebar slot beside content they came for. Only views that were actually on screen are billed.
Start a campaign from £1.99 and see the advertiser dashboard there, compare VibeFree against Carbon Ads, against EthicalAds or against ChatGPT Ads.
Related pages
- A Carbon Ads alternative - A $6 CPM managed buy of a million impressions a month, against one self-serve block.
- An EthicalAds alternative - Both contextual. Only one asks for $1,000 before you start.
- A ChatGPT Ads alternative - ChatGPT, Copilot and Google AI ads against a developer-only AI chat.
- Or browse every VibeFree comparison.