API Stock vs WaveSpeedAI
WaveSpeedAI alternative
Use API Stock instead of WaveSpeedAI for image and video generation with one prepaid balance. Compare shared image models below and see how model-specific endpoints map to our task API.
How API Stock compares with WaveSpeedAI
When to choose API Stock
Choose API Stock when consolidating WaveSpeedAI calls into a single media-task endpoint matters more than keeping model-specific routes and synchronous options.
When to keep WaveSpeedAI
Keep WaveSpeedAI for a specialized endpoint or synchronous workflow that your application relies on. Check model availability and input options before moving each route.
WaveSpeedAI API documentationScroll horizontally to read all table columns.
| Integration detail | WaveSpeedAI | API Stock |
|---|---|---|
| Request | POST /api/v3/bytedance/seedream-v4.5 | POST /api/v1/generation/create |
| Authentication | Authorization: Bearer | Authorization: Bearer |
| Model identifier | bytedance/seedream-v4.5 | seedream-4-5 |
This compares the example model below, not every endpoint the provider offers. Shared model names do not guarantee identical parameters, moderation or output.
Price comparison: WaveSpeedAI and API Stock
Selected shared models with matching billing units. Our prices come from the current catalog; competitor prices are dated observations linked to their sources.
| Model | API Stock | WaveSpeedAI | Our price difference |
|---|---|---|---|
| Seedream 4.52K · per image · text to image | API Stock$0.036 | WaveSpeedAI$0.04 | 10% lower |
| Nano Bananaper image · text to image | API Stock$0.015 | WaveSpeedAI$0.038 | 60.5% lower |
One image from a text prompt, without reference images. These are public base rates; plans, volume discounts, other resolutions and editing can change the final price.
What a workload costs
Seedream 4.5 · 2K
1,000 images, the configuration above
- API Stock
- $36
- WaveSpeedAI
- $40
Nano Banana
1,000 images, the configuration above
- API Stock
- $15
- WaveSpeedAI
- $38
Illustrative totals from the rows above, without volume discounts, subscriptions or additional paid options. These examples do not predict latency or identical outputs.
Migrating from WaveSpeedAI
Replace the model-specific /api/v3 endpoint with /api/v1/generation/create and put the public model id in the JSON body. Map size to the documented size and resolution fields, then replace prediction polling with our task status endpoint.
1
Create an account, top up your prepaid balance and issue an API key.
2
POST to /api/v1/generation/create with the public model id and its documented parameters. Each task generates one output.
3
Read taskId from the response. Poll GET /api/v1/task/status/TASK_ID, or set webhook in the creation request.
WaveSpeedAI
curl --fail-with-body 'https://api.wavespeed.ai/api/v3/bytedance/seedream-v4.5' \-H "Authorization: Bearer $WAVESPEED_API_KEY" \-H 'Content-Type: application/json' \-d '{"prompt": "A ceramic mug on a wooden table, soft morning light","size": "2048*2048"}'
API Stock
curl --fail-with-body 'https://api.api-stock.com/api/v1/generation/create' \-H "Authorization: Bearer $API_KEY" \-H 'Content-Type: application/json' \-d '{"model": "seedream-4-5","prompt": "A ceramic mug on a wooden table, soft morning light","resolution": "2K","size": "1:1"}'
Complete example: create a task and download its result
Run on your server with Node 22+ or Bun and API_KEY set. This example creates one paid task, then polls without creating it again. Finished URLs are temporary: save the file to your own storage.
import { writeFile } from "node:fs/promises";const baseURL = "https://api.api-stock.com/api/v1";const apiKey = process.env.API_KEY;if (!apiKey) throw new Error("Set API_KEY on the server");async function request(path, options = {}) {const response = await fetch(baseURL + path, {...options,headers: {Authorization: `Bearer ${apiKey}`,"Content-Type": "application/json",},signal: AbortSignal.timeout(30_000),});if (!response.ok) throw new Error(await response.text());return response.json();}const { taskId } = await request("/generation/create", {method: "POST",body: JSON.stringify({"model": "seedream-4-5","prompt": "A ceramic mug on a wooden table, soft morning light","resolution": "2K","size": "1:1"}),});if (!taskId) throw new Error("Missing taskId");const deadline = Date.now() + 10 * 60_000;let fileUrl;while (Date.now() < deadline) {const { data } = await request(`/task/status/${encodeURIComponent(taskId)}`);if (data.status === "finished") {fileUrl = data.files?.[0]?.fileUrl;if (!fileUrl) throw new Error("Task finished without a file");break;}if (data.status === "failed" || data.status === "expired") {throw new Error(data.errorMessage || data.status);}await new Promise((resolve) => setTimeout(resolve, 2000));}if (!fileUrl) throw new Error(`Still processing: save taskId ${taskId} and resume polling`);const file = await fetch(fileUrl, { signal: AbortSignal.timeout(60_000) });if (!file.ok) throw new Error(`Download failed: ${file.status}`);const mime = file.headers.get("content-type")?.split(";")[0];const extension = { "image/png": "png", "image/jpeg": "jpg", "image/webp": "webp" }[mime] || "bin";await writeFile(`generated-image.${extension}`, new Uint8Array(await file.arrayBuffer()));
Keep API keys on your server. When migrating, test one request and compare its parameters, status handling and output before moving production traffic.
Frequently asked questions
How do I migrate from WaveSpeedAI?
Replace the model-specific /api/v3 endpoint with /api/v1/generation/create and put the public model id in the JSON body. Map size to the documented size and resolution fields, then replace prediction polling with our task status endpoint.
Is API Stock always cheaper than WaveSpeedAI?
No. Compare the exact model, configuration and billing unit in the table. Prices can move in either direction; check both catalogs before sending production traffic.
Can I move every WaveSpeedAI workflow?
Keep WaveSpeedAI for a specialized endpoint or synchronous workflow that your application relies on. Check model availability and input options before moving each route.
What happens to failed or unfinished requests?
Media tasks retry according to the configured routes; a reserve is used when one is available. A terminal generation failure is refunded. Keep polling a processing task instead of creating a duplicate. An expired file URL is not a failed generation.
How do I top up the balance?
Available payment methods, currencies and minimum top-up amounts are shown in your account before payment. There is no subscription: model usage is charged to your prepaid balance.
Try your first request on API Stock
Choose a model, check its parameters and price, then create an API key in your account. Start with one request before moving your traffic.