Ana Brainiall

Generate photorealistic images with SOTA models

iniciante · 10 min · Por Ana Brainiall

The difference between a good prompt and a "boring" prompt

When diffusion generation models went mainstream in 2022, there was a belief that more words = better results. Today we know the opposite is closer to the truth: structural clarity beats volume. A well-crafted prompt has 4 components:

1. Subject: what's in the image (a woman, a car, a landscape)
2. Action/pose: what the subject is doing (running, sitting, smiling)
3. Context: where (kitchen, forest, neon night city)
4. Style: how it was captured (35mm photography, watercolor illustration, 3D render)

A polished example: "professional photograph of a brazilian woman smiling, sitting in a sunlit kitchen window, shot on 35mm film, soft natural light, shallow depth of field, cinematic color grading".

grid 2x2 mostrando variações da mesma descrição com níveis de qualidade crescent

Why style matters more than resolution

Modern models produce high-resolution output (1024×1024 or 2K) effortlessly. The challenge isn't "size" — it's stylistic coherence. A photo that mixes cinematic lighting with 3D illustration texture looks off even at 4K.

Practical tip: pick ONE visual style and reinforce it with 2–3 keywords:

Fine-grained control with negative prompts

Many models accept a negative prompt — what you do NOT want to see. This isn't censorship, it's direction: "blurry, low quality, watermark, text, signature, deformed hands" helps avoid the most common diffusion model artifacts.

A frequent mistake: stuffing the negative prompt with generic terms. It's best to keep it lean and specific to the problem you're actually seeing. If hands come out deformed (a classic issue), only then add "extra fingers, malformed hands".

Models on Brainiall and when to use each

Test the same prompt across 2–3 different models — the stylistic difference between them is greater than the quality difference.

Limitations you'll run into early on

Try it right now

In the Brainiall chat, click "Image" at the top and use a structured prompt like:

"professional photograph of a [person/object], [action/pose], [location/context], shot on 35mm film, natural lighting, shallow depth of field"

You get 1 image in 2–5 seconds. The Pro Plan at $9/mo includes 100 images/month on top-tier models.

API Integration

Beyond the chat, use the REST API to integrate into your app. Bearer token auth (get yours at app.brainiall.com).

curl -X POST https://chat.brainiall.com/api/images \
  -H "Authorization: Bearer $BRAINIALL_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/nano-banana","prompt":"neon cyberpunk city","size":"1024","n":1}' 
import requests, os
r = requests.post("https://chat.brainiall.com/api/images",
    json={"model": "google/nano-banana",
          "prompt": "neon cyberpunk city at night",
          "size": "1024", "n": 1},
    headers={"Authorization": f"Bearer {os.environ["BRAINIALL_KEY"]}"} )
image_url = r.json()["images"][0]["url"]

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