GPT-4o Image API — one API for generation and understanding
Blend generative, editing, and perception workloads. GPT-4o Image handles product photography, annotations, and multimodal pipelines.
Vision understanding
Extract objects, scene semantics, and embedded text with a single call.
Smart masking
Auto-detect editable regions or upload pixel-perfect masks.
Reference-guided
Blend natural language with example images for precise outputs.
Seamless chaining
Use alongside chat, tool calling, and orchestration without format swaps.
Try a prompt in seconds
Input images
1–5
Supply references, staging shots, or mockups.
Mode
Edit
Switch between generation, edit, and describe modes on demand.
Mask
Auto-detect
Upload your own mask for pixel-level control when needed.
Edited result
View the new asset alongside a diff map for quick QA and versioning.
Unified multimodal pricing
Understanding, generation, and editing draw from the same pool of credits.
Start from day one with zero minimums and live usage analytics inside the dashboard.
- Latency-optimised global POP routing
- Automatic retries and circuit breaking
- Per-request billing insights in real time
Ideal for fast-growing teams that want predictable discounts and proactive quota alerts.
- Priority capacity reservations
- Team workspaces with audit trails
- Custom rate and budget controls
Tailored SLAs, private regions, and compliance workflows for regulated workloads.
- Private networking options
- Dedicated solutions engineer
- Custom invoicing and procurement
Multimodal request example
Create a workspace and API key
Provision long-lived or temporary keys from the Transend dashboard and configure which providers are available to your team.
Call POST /images/gpt4o/edit
Use the familiar OpenAI-style JSON schema. Bring your prompt, parameters, and optional tool calls — the request format works with every official SDK.
Ship the result to production
Each response returns task identifiers, elapsed time, and cost metadata. Wire it into your app with webhooks, polling, or background jobs.
import FormData from "form-data";
import fetch from "node-fetch";
const form = new FormData();
form.append("image", fs.createReadStream("./product.png"));
form.append(
"payload",
JSON.stringify({
prompt: "Enhance product photo...",
mode: "edit",
size: "1024x1024"
})
);
const res = await fetch("https://api.transendai.net/v1/images/gpt4o/edit", {
method: "POST",
headers: { Authorization: `Bearer ${process.env.TRANSEND_API_KEY}` },
body: form,
});
console.log(await res.json());
Multimodal model comparison
| Model | Understanding | Editing | Multi-image context | Price |
|---|---|---|---|---|
| GPT-4o Image | ★★★★★ | ★★★★★ | 5 images | $0.03 |
| Nano Banana | ★★★★☆ | ★★★☆☆ | 1 image | $0.02 |
| Qwen Image | ★★★☆☆ | ★★★☆☆ | 3 images | $0.0165 |
Product and content teams rely on GPT-4o
Teams across finance, creative studios, and indie hackers ship production workloads with Transend AI.
“GPT-4o Image API helped us ship a usable MVP in under a week while cutting inference spend by 30%.”
“Latency is steady, failover is automatic, and on-call runs are finally quiet again.”
Answers for builders
Didn't find what you need? Email [email protected] – we reply within 12 hours.
Which regions does the GPT-4o Image API support?
Transend operates POPs in us-east, us-west, eu-central, and ap-southeast. The platform routes to the closest region automatically, and enterprise plans can request private regions or custom data residency.
Can we stream logs into our own observability stack?
Yes. Forward operational events through webhooks or export APIs into Datadog, Grafana, BigQuery, or any system that can ingest JSON streams.
How do we enforce budgets?
Real-time spend analytics live in the dashboard. Define model, team, or tag-based alerts and automatically throttle or downgrade when a budget threshold is reached.
Ready to ship with GPT-4o Image API?
Deploy unified AI experiences with a single API key. No quota bureaucracy, just blazing fast inference on the models your team loves.