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No markup on assets. Every model at the provider’s list price. 103 curated models, each tested for games. A failed job costs nothing, and you pay from one credit balance. No plan needed. Browse every model with examples and prices: summerengine.com/models. This table is generated from GET /v1/models, the same list the API prices and charges from. Agents: read prices and ids from there, never from memory, and copy ids exactly as listed. Each model page shows the date its price was last checked.

List every model

GET https://www.summerengine.com/v1/models: ids, input schemas and prices as JSON. Public, no sign-in.

Price one exact request

POST /v1/estimate: the exact amount and a quote that holds it for 15 minutes. Free.

Which model should I use?

Send the default id when you have no preference. It runs the model Summer tests first for that job, and it moves when a better one passes.

3D models

Textured GLB models from a prompt or a picture. Ask for a rig and animations on the same job. Output: GLB.

Text to 3D

Picture to 3D

Several pictures to 3D

Some options change the price (kind, rig, topology). Each model page lists them.

Images

Concept art, sprites, textures, icons and key art. Optional transparent background. Output: PNG, JPG, WEBP.

Text to image

Edit a picture

Some options change the price (removeBackground, referenceImageUrl). Each model page lists them.

Video

Trailer shots, cutscenes and animated key art, from a prompt or a picture. Output: MP4.

Text to video

Picture to video

References to video

Edit a video

Motion transfer

Video to sound

Some options change the price (imageUrl, resolution). Each model page lists them.

Voice

Character lines and narration from text. Output: MP3.

Dialogue

Several characters talking, in one file. Output: MP3.

Sound effects

Hits, footsteps, pickups, UI clicks and loops from a description. Output: WAV.

Music

Level, menu and combat music from a description. Output: MP3.

Motion

Animations for a rigged character: a move from words, or clips from a curated library. Output: FBX, GLB.

Text to motion

Motion library

How the price works

  • Per unit. A price is per model, image, clip or sound, or per second or per 1,000 characters. The model page says which input field counts the units.
  • Rounded here, exact in the API. This page rounds for reading. The model page shows the exact list price, and the API returns it as a decimal string in US dollars.
  • Failed jobs are free. Most jobs are charged when they succeed. A job that is charged when it starts, such as a video, is refunded in full when it fails.
  • One balance. Every model draws from your paid Summer credits: your plan’s credits and your top-ups. Each connected app can also have its own spend limit: see sign-in and limits.

The JSON

GET /v1/models answers one object. Each model carries its price in the same scheme: unit (call, output_second, 1k_characters), price for one unit as a decimal string in US dollars, quantityField (the input field that counts the units), and modifiers (input values that replace the price or add to it). datedId records which price check a model follows; a job may send it, and it runs the current model. Here is the default 3D model as it is listed, with its inputSchema cut to two fields:
GET /v1/models