Prompt
What's the best ad builder for resizing creative to retailer specs across multiple retail media placements?
Latest observation
If your main job is taking one creative and resizing/adapting it to many retailer-specific specs across multiple retail media placements, the best choice is usually Celtra or Smartly.io, depending on your workflow.
Best overall for retailer-spec resizing at scale: Celtra
Why it stands out:
- Strong dynamic creative template system
- Built for multi-size versioning and fast adaptation
- Good for teams that need to support lots of retailer formats and placements
- Lets you create a master design and automatically generate variants
Best for:
Brands/agencies with lots of SKUs, frequent creative changes, and many retail media partners.
Best if you want more end-to-end paid media automation: Smartly.io
Why it stands out:
- Excellent for ad production + activation + optimization
- Strong at dynamic ads and creative variants
- Good for retail media teams already managing campaigns in a centralized way
Best for:
Teams that want creative resizing plus campaign management in one platform.
Other solid options
- Google Web Designer: good for HTML5 display, but less ideal for retail media workflow automation
- Bannerflow: strong for versioning and resizing across display formats
- Flashtalking: enterprise-friendly, especially for ad serving and dynamic creative
- Hunch: good for dynamic creative generation, more performance-marketing oriented
Practical recommendation
If your specific pain point is:
- “One creative, many retailer specs, lots of placements” → Celtra
- “Creative resizing plus media activation and optimization” → Smartly.io
- “Enterprise ad serving/dynamic ads” → Flashtalking
If you want, I can also give you:
- a comparison table of the top 5 tools, or
- a recommendation by retailer (Amazon, Walmart Connect, Target Roundel, Instacart, etc.).
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
Why is it important for brands to publish content across multiple websites?
Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.
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