What a template image API actually costs per 1,000 renders

Entry and mid-tier plans from eight template-based image APIs, divided by the renders each includes — plus what happens at the cap, and the monthly bill at 5,000 and 25,000 renders.

Max Čelar·October 2, 2026·Updated October 3, 2026·Pricing & cost

What’s new here: Cost per 1,000 renders at the entry and mid plan of eight template-based image APIs (Bannerbear, Placid, APITemplate.io, HTMLCSStoImage, Robolly, Templated.io, Abyssale, MostlyRender) from dated pricing snapshots (9 June 2026; Bannerbear and Abyssale re-checked 2 October 2026), what each does when the quota runs out, and the cheapest monthly bill for each at 5,000 and 25,000 renders a month.

Every template-based image API — the kind that fills your design with data, not the generative-AI kind — advertises a monthly price. Very few advertise the two numbers that decide what you will actually pay: the price of 1,000 renders, and what happens on the day you run out.

Both are easy to work out from the vendors’ own pricing pages. This article does that for eight template-based image APIs, one of which is ours. We sell MostlyRender, so read the numbers with that in mind — they are all on the public pages linked at the bottom, and the places where a competitor is cheaper than us are in the tables too.

# How these numbers were collected

On 9 June 2026 we recorded the public pricing page of each vendor as part of the research behind our comparison pages: plan names, monthly price, included renders (or credits), and the stated behaviour at the limit. No logins, no sales calls, no estimates. Our weekly price monitor flagged changes at Bannerbear and Abyssale, so both were re-checked on 2 October 2026: Bannerbear’s Enterprise plan now includes 50,000 credits, and Abyssale dropped its $12 Start plan. On 3 October we re-checked the rest: Robolly, Templated.io and HTMLCSStoImage prices are unchanged (HTMLCSStoImage renamed its tiers to Basic, Pro and Scale), and Placid’s credits and limits are unchanged — its prices no longer render without JavaScript, so its dollar figures are still the June ones.

Prices change. Check each vendor’s current pricing before you decide — this reflects our last review. MostlyRender’s own numbers come from our pricing page as of 1 October 2026.

Three conventions:

• “Render” means one static image. Most vendors call it a credit. Bannerbear counts PDFs and videos as more than one credit; Templated.io counts one credit per PDF page.
• Monthly prices are monthly billing, except Templated.io, whose page showed only annually billed prices.
• Per-seat prices are for one seat, billed monthly. Abyssale charges per seat (its annual prices are $36 and $60); everyone else here charges per account.

# Cost per 1,000 renders at the entry plan

The entry plan is the cheapest paid plan that can call the API.

Two caveats. Robolly’s Individual plan has a slider from 250 to 1,000 renders; the $39 is the base price at 250, and the snapshot did not record the price at the top of the slider. APITemplate.io also sells a PDF-only family, and its PDF Basic plan — $24 for 3,000 PDFs, $8.00 per 1,000 — is cheaper than anything above if all you render is PDFs.

The cheapest way in is HTMLCSStoImage at $14. The cheapest per render at entry is MostlyRender. Those are different questions, and which one matters depends on whether you will use the included renders.

# Cost per 1,000 renders at the mid plan

The mid plan is the next tier up — usually the one a growing product moves to.

The ranking moves further up the ladder. Placid’s Business plan ($89 for 25,000) works out at $3.56 per 1,000, and MostlyRender’s Scale plan ($149 for 50,000) at $2.98. If your volume is high and steady, the third tier is where the real comparison happens.

# What happens when you run out

This is the number that does not appear in a pricing table, and it matters more than the price: it decides whether a busy month costs a little more or breaks a production pipeline.

A hard cap is not necessarily bad: it means a bill can never surprise you. But if the images are part of a product — Open Graph cards, invoices, certificates — a cap means the feature silently stops working on the day you are busiest. If you choose a capped vendor, put an alert on usage well before 100%.

# The bill at your volume

Cost per 1,000 rewards whoever includes the most renders, even if you will never use them. The fairer test is: what is the cheapest monthly bill that covers a given volume, using published plans and published overage only?

At 25,000 a month Placid is cheaper than MostlyRender — $89 against our $109 — provided you never exceed 25,000, because Placid blocks rather than bills past it. At 5,000 a month we are the cheapest of the eight. Your number is probably neither, so run your own volume through the tables above.

# How to work out your own number

1. Estimate renders, not requests. Count one render per image per size, per page for PDFs. If you cache by URL, repeated requests for the same image may not count again — MostlyRender and Robolly both say so for repeat render links.
2. Find the cheapest plan that covers a normal month, including published overage.
3. Then price a bad month — a launch, a campaign, a page that goes viral. On a capped plan, that month costs an upgrade or an outage. On a metered plan, it costs the overage rate times the excess.
4. Check the unit. Credits that cost more for PDFs or videos, or per-seat pricing, can double the real figure.

If you want to compare MostlyRender against one vendor in detail, there is a page for each: Bannerbear, Placid, APITemplate.io, HTMLCSStoImage, Robolly, Templated.io and Abyssale. Each one says where the other product is ahead.