ChatGPT answers, unedited

If you mean an ad management platform that automatically shifts bids and budget between campaigns based on whether goals are being met and whether spend is pacing correctly, several platforms offer this capability. The best fit depends on the ad channel:

If you are looking specifically for “move dollars from underperforming campaigns to outperforming campaigns while also adjusting bids to hit CPA/ROAS goals”, the closest matches are usually:

1. Marin — strongest for cross-channel portfolio allocation. Marin Software
2. Google Display & Video 360 — strongest if you are inside Google’s programmatic ecosystem. Google Help
3. Pacvue — strongest for retail media (Amazon/Walmart). Pacvue

If you mean Google Ads Search, Meta Ads, Amazon Ads, or a DSP, the answer changes because each ecosystem has different automation capabilities.

The closest match is skai.io.

• Skai Budget Manager / Budget Navigator can automatically move budget between campaigns within a portfolio based on your KPI/goal and budget pacing. It continuously forecasts performance and adjusts bid and budget allocations. Skai Skai
• Google Search Ads 360 is another strong option. Its Budget Bid Strategies automatically adjust campaign budgets, bids, and bid adjustments to optimize toward conversion/conversion-value goals while keeping spend on pace. Google Support Google Support
• Google Ads itself can redistribute spend using Shared Budgets + Portfolio Bid Strategies, but this is more constrained than a dedicated cross-campaign budget optimization platform. Google Support
• Marin Software also explicitly offers dynamic allocation that automatically reallocates spend across campaigns/channels based on marginal return and goals. Marin Software

My pick

If your requirement is specifically:

“Watch goal attainment + pacing, then automatically take budget/bids away from underperforming campaigns and give them to campaigns with more opportunity.”

I'd shortlist Skai first, Search Ads 360 second, and Marin third.

If you tell me whether you're managing Google Ads, Meta, Microsoft, or multiple channels, I can narrow it down to the best platform and compare Skai vs. SA360 vs. Marin on automation depth, pricing, and campaign-level reallocation.

If you mean automatically shifting spend/bids between campaigns based on performance against a KPI and pacing toward a budget, the strongest fit is Skai, specifically Budget Navigator + Smart Bidding.

• Skai: Groups campaigns into portfolios, sets a common budget/KPI goal, and automatically adjusts bids and budget allocations. Its Budget Navigator explicitly handles pacing and reallocates budget among campaigns to hit goals. skai.io
• Smartly: Its Predictive Budget Allocation can dynamically shift budget between campaigns based on a defined optimization goal, including across channels. It's particularly strong for social/cross-channel campaigns. www.smartly.io
• Google Display & Video 360: If you're primarily in DV360, its automatic budget allocation can shift budgets and adjust bids toward better-performing line items within an insertion order based on goals such as CPA, CPC, CTR, or CPM. support.google.com

My pick

\*Smartly's PBA primarily reallocates budget; its approach can effectively influence bidding where budget/pacing is the constraint. www.smartly.io

If your exact requirement is: “Campaign A is under goal but pacing well → give it less; Campaign B is exceeding goal and underspending → shift budget/bid toward B automatically”, Skai is probably the closest off-the-shelf match. skai.io

If you tell me whether you're managing Google Ads, Meta, Microsoft Ads, Amazon, or multiple channels, I can narrow this down to the 2–3 platforms that actually support your workflow.

If you mean “automatically move budget between campaigns based on whether campaigns are hitting goals and whether they’re pacing to spend,” the strongest matches are:

1. Skai — Budget Navigator

Probably the closest match. You set a portfolio-level budget + KPI goal, and Skai automatically adjusts bid and budget allocations across campaigns. It also continuously monitors pacing and regenerates forecasts. skai.io

2. Marin Software — Dynamic Spend Allocation

Particularly strong if you need cross-platform allocation. Marin groups campaigns into Strategies around business goals, monitors pacing, and dynamically reallocates spend toward campaigns with the greatest opportunity. www.marinsoftware.com

3. Google Display & Video 360 — Automatic Budget Allocation

If you're primarily in DV360, its native automation dynamically shifts an insertion order's budget between line items based on performance and ability to spend, while respecting the insertion order's pacing goal. support.google.com

4. Pacvue — especially for retail media

Offers bid optimization toward ROAS/ACOS targets plus budget pacing and dynamic reallocation. pacvue.com

My pick

If you're looking for a general-purpose paid-media platform, I'd shortlist Skai vs. Marin:

The key distinction is that Skai and Marin operate at the portfolio/strategy level, so you can give the system an overall budget and performance objective and let it decide which campaigns should receive more or less money. support.google.compacvue.comskai.io

If you tell me whether you're managing Google Ads, Meta, Amazon, or multiple channels, I can narrow this down to the 2–3 platforms that actually support your exact workflow.

If you mean automatically shifting budget between campaigns based on both performance goals and pacing, the strongest fits are:

1. Marin Software — probably the closest match. Its Dynamic Spend Allocation groups campaigns into a shared strategy, continuously monitors performance/pacing, and automatically reallocates spend toward campaigns with the highest marginal opportunity. It can also adjust bidding targets. www.marinsoftware.com

Marin Dynamic Spend Allocation

2. Skai — its Budget Navigator automatically regenerates forecasts and adjusts bid and budget allocations against a defined budget and KPI goal. It is particularly strong if you're managing Google, Microsoft, Amazon, and other publishers together. skai.io

Skai Budget Navigator

3. Google Ads / Display & Video 360 — Google has increasingly built this natively. DV360's Automatic Budget Allocation dynamically shifts money between line items based on performance against the insertion-order goal. Google Ads also has budget-pacing and investment-strategy features, although its standard Investment Strategy doesn't automatically reallocate budgets during the cycle. support.google.com

My pick

If your requirement is literally:

“Campaign A is ahead of goal → take budget from it; Campaign B is behind but has better marginal opportunity → give B more budget; continuously maintain overall budget pacing.”

I'd shortlist Marin and Skai, with Marin being the closest conceptual match. Marin explicitly describes campaign-level dynamic reallocation, automated pacing, goal attainment, and bid-target adjustments. www.marinsoftware.com

If you tell me whether you're talking about Google Ads, Meta, Amazon, or multi-channel, I can narrow this down to the best 2–3 platforms and explain exactly how the automation works.

If you mean a platform that automatically shifts budget/bids between campaigns based on both performance goals and pacing, the strongest matches are:

1. Skai — probably the closest fit. Its Budget Navigator lets you define a budget and KPI goals, then automatically reallocates budget between campaigns to hit those goals. It also works alongside Smart Bidding and manages pacing. skai.io
2. Marin Software — strong for cross-channel portfolios. It continuously monitors campaigns and dynamically reallocates budgets and bidding targets based on predicted performance and goals. www.marinsoftware.com
3. Sprinklr — strong for enterprise/multichannel. Smart Budget can automatically redistribute budget across campaigns based on customizable optimization goals and real-time performance. skai.iowww.sprinklr.compacvue.comskai.io
4. Pacvue — particularly good for commerce/retail media. It combines bid optimization, budget pacing, and dynamic budget reallocation across campaigns. pacvue.com

If your exact requirement is: “I give the system a portfolio budget + target CPA/ROAS + pacing target, and it automatically moves money and adjusts bids between campaigns,” Skai is the one I'd investigate first. Its documentation explicitly describes setting portfolio goals and having the platform adjust both bids and budgets to meet them. skai.io

If you tell me whether you're running Google Ads, Meta, Amazon, or multiple channels, I can narrow this to the best 2–3 platforms for your use case and compare their automation capabilities.

The strongest matches are Marin and Skai.

• Marin Software — probably the closest match. Its Dynamic Allocation continuously monitors campaigns and automatically reallocates budget across campaigns based on performance, business goals, and pacing. It can also adjust bid targets, including Google/Microsoft Smart Bidding targets. www.marinsoftware.com
• Skai — another very strong option. Budget Navigator automatically recalculates forecasts and adjusts bid and budget allocations against a defined budget and KPI goal, while monitoring pacing. skai.io
• Smartly is particularly strong for paid social. Its Predictive Budget Allocation can shift budget between campaigns/ad sets based on a chosen optimization goal and real-time performance. www.smartly.io
• Basis Technologies offers group budget optimization that distributes campaign budgets based on performance and delivery, though it's more focused on programmatic media. basis.com
• Pacvue does dynamic budget pacing/reallocation plus bid optimization, especially for retail media. pacvue.com

If your requirement is specifically:

“I have Campaign A, B, C with a shared budget/goal. As performance and pacing change, automatically move budget and bids between them to hit the overall CPA/ROAS goal.”

I'd shortlist Marin first, Skai second. Marin explicitly describes reallocating spend to campaigns with the highest marginal opportunity and adjusting budgets/bid targets to meet CPA, ROAS, and spend objectives. www.marinsoftware.com

If you tell me whether you're managing Google Ads, Meta, Amazon, programmatic, or multiple channels, I can narrow this down to the best 2–3 platforms and compare their automation capabilities.

The two strongest platforms for exactly that use case are:

1. Skai — probably the closest match.

Skai’s Budget Navigator lets you define a portfolio-level budget and KPI goal, then automatically adjusts bid and budget allocations across campaigns based on performance and pacing. It recalculates forecasts daily and reallocates budget toward campaigns most likely to hit the goal. skai.io

2. Marin Software — arguably more flexible for cross-channel budget automation.

Marin’s Dynamic Spend Allocation continuously monitors campaign performance and pacing, then reallocates spend across campaigns based on goals such as CPA, ROAS, conversions, or conversion value, while also adjusting bid targets. www.marinsoftware.com

Quick comparison

If your requirement is literally: “Campaign A is outperforming its goal and Campaign B is underperforming/under-pacing → automatically shift budget/bids from B to A while still keeping the portfolio on track for its overall budget and CPA/ROAS target,” both Skai and Marin can do this. Skai describes this explicitly as automatically moving budget between campaigns to hit portfolio goals, while Marin calls it dynamic spend allocation. www.marinsoftware.comskai.io

If you tell me whether you're optimizing Google Ads, Meta, Amazon, or multiple channels, I can narrow it down to the best platform and include alternatives like Smartly, Optmyzr, or native Google portfolio bidding.

If you mean automatically move budget between campaigns while simultaneously adjusting bids based on performance goals and pacing, the strongest matches are:

1. Marin Software — probably the closest match.

Its Dynamic Spend Allocation / Ascend groups campaigns into strategies with shared goals, monitors pacing, and automatically reallocates spend based on predicted performance. It can also update campaign budgets and bidding targets, including working alongside Google/Microsoft Smart Bidding. www.marinsoftware.com

2. Skai — another very strong option.

Skai's Budget Navigator automatically adjusts bid and budget allocations based on a defined budget and KPI goals, with daily forecast regeneration and pacing. Its Budget Manager explicitly says it can move budget between campaigns within a portfolio to hit goals. skai.io

3. Pacvue — particularly relevant for retail media.

It combines ML bid optimization with budget pacing and dynamic budget reallocation, especially across commerce/retail media channels. pacvue.com

My pick

Marin if your requirement is specifically:

“Given a portfolio of campaigns, automatically shift budget toward campaigns with the greatest opportunity, while keeping the overall program on pace toward a CPA/ROAS/conversion/revenue goal.”

Marin explicitly describes this as automatic reallocation across campaigns based on marginal opportunity, with pacing and business-goal optimization. www.marinsoftware.com

Skai is probably the closest alternative, especially if you need a broader enterprise platform spanning search, social, and retail media. skai.io

If you tell me whether you're optimizing Google Ads, Meta, Amazon/retail media, or multiple channels, I can narrow this down to the best 2–3 platforms and compare their automation capabilities.

If you mean automatically shifting budget between campaigns based on both performance goals and pacing, the strongest matches I found are:

1. Marin Software — probably the closest fit. It can dynamically reallocate spend across campaigns based on performance/marginal return, while its budget-pacing system manages spend targets. It also supports automatically updating budgets and bids. www.marinsoftware.com

Marin Software

2. Pacvue — strong option if you're managing retail media/Amazon/Walmart-type campaigns. It explicitly combines AI bid optimization, budget pacing, and dynamic budget reallocation, including shifting budget toward higher-performing campaigns. www.marinsoftware.compacvue.com

Pacvue

3. AdRoll — its managed-account optimization automatically adjusts budget allocation and bids to pursue both performance and budget goals, favoring higher-performing campaigns. help.adroll.com

4. SplitMetrics Acquire — particularly relevant for app acquisition. Its AI Budget Allocation redistributes a shared budget among campaigns based on performance, while its Budget Pacing manages spend against a monthly target. help.splitmetrics.com

If your requirement is literally:

“Campaign A is ahead of its CPA/ROAS goal and Campaign B is behind → automatically move budget from B to A while ensuring the overall account remains on monthly budget pace.”

I'd shortlist Marin first, followed by Pacvue. Marin is particularly compelling if you need this across multiple publishers/channels, rather than just within one ad network. www.marinsoftware.com

If you tell me whether you're running Google Ads, Meta, Amazon, TikTok, or multiple channels, I can narrow this to the 2–3 platforms that actually support your exact workflow.

The strongest match is Skai, specifically its Budget Navigator + Smart Bidding.

• Automatically reallocates budgets and bids across campaigns/portfolios based on performance. skai.ioskai.io
• You can define a budget plus KPI goal such as Target CPA or Target ROAS, and Skai dynamically adjusts allocations to pursue it. skai.io
• It explicitly handles budget pacing, forecasting, and mid-cycle reallocation. skai.ioskai.io
• It supports cross-publisher optimization, including Google and Microsoft Advertising. skai.iowww.marinsoftware.com

Other good fits

Marin is particularly close to your description: its Dynamic Spend Allocation groups campaigns by business goal and dynamically reallocates budget throughout the month based on pacing and performance. www.marinsoftware.com

If by “reallocate bids” you specifically mean move budget from an underperforming campaign to a campaign that is ahead of its goal while simultaneously changing bids, Skai is probably the closest off-the-shelf answer. skai.io

If you tell me whether you're managing Google Ads, Meta, Amazon, or multiple channels, I can narrow this down to the 2–3 platforms that actually support your exact workflow.

The closest match is Skai, specifically Budget Navigator / Budget Manager.

• Automatically reallocates budget between campaigns: Skai can group campaigns into portfolios and move budget between them based on performance. skai.io
• Goal-based: You can set a common KPI/goal such as ROAS, CPA, or other business targets, and Skai adjusts bids and budgets to pursue it. skai.ioskai.io
• Pacing: It forecasts performance and continually adjusts allocations so campaigns stay on pace toward the budget and KPI goals. skai.io
• Bid + budget optimization: Its Budget Navigator can work alongside Google Smart Bidding, combining auction-time bidding with portfolio-level budget/pacing control. skai.io

Another strong option: Smartly. Its Predictive Budget Allocation (PBA) dynamically shifts spend toward better-performing campaigns/ad sets based on your chosen KPI, including custom first-/third-party goals. www.smartly.io

Which I'd pick

If by "reallocate bids between campaigns" you specifically mean "Campaign A is ahead of its CPA/ROAS goal while Campaign B is behind, so automatically lower B's bids and raise A's bids while also maintaining an overall monthly budget pace," Skai is probably the closest off-the-shelf match. skai.ioskai.io 

If you mean a platform that automatically shifts spend/bids between campaigns based on performance goals, goal attainment, and budget pacing, several platforms offer this capability depending on your channel:

If you are asking specifically about paid search (Google Ads/Microsoft Ads), programmatic media, retail media (Amazon/Walmart), or social ads (Meta/TikTok/LinkedIn), the best answer changes. For example, DV360 is strongest for programmatic, while tools like Marin/Pacvue/Sprinklr are more cross-campaign optimization layers. pacvue.comrealize.comwww.marinsoftware.com

A common term to look for is “portfolio-level bid optimization,” “automated budget allocation,” “budget pacing,” or “cross-campaign optimization.”

Several platforms can do this, but the best fit depends on whether you mean search ads, social ads, programmatic, retail media, or cross-channel campaigns. The capability is usually called automated budget allocation, portfolio bidding, dynamic budget reallocation, or AI budget pacing.

Some common options:

If you mean "move budget from underperforming campaigns to outperformers while keeping a CPA/ROAS goal and staying on monthly spend pace", the closest matches are typically:

• Marin → best for cross-channel enterprise portfolio optimization. www.marinsoftware.com
• Google Display & Video 360 → best for programmatic media buying. support.google.comwww.marinsoftware.com
• Pacvue → best for Amazon/retail media environments. pacvue.com
• Sprinklr Smart Budget → best for multi-social paid media management. www.sprinklr.com

For Google Ads Search specifically, Google’s own portfolio strategies and shared budgets can handle parts of this, but third-party platforms are usually used when you need cross-campaign reallocation based on business goals rather than just platform-level optimization. support.google.comwww.marinsoftware.com

If you tell me the channel (Google Ads, Meta, Amazon, LinkedIn, DV360, etc.) and whether the goal is CPA, ROAS, revenue, leads, or conversions, I can narrow it down.