Generating AI images has gone from a niche experiment to an essential creative tool in 2026. Whether you need product mockups, social media graphics, concept art, or marketing visuals, an AI image generator can produce stunning results in seconds. But with dozens of models and thousands of settings, getting started can feel overwhelming.

This guide walks you through the entire process on Oakgen.ai, from creating your account to downloading your first image. By the end, you will know how to choose the right model, write effective prompts, and configure settings for the best results.

What You Need to Get Started

Nothing. Seriously. Oakgen gives you 1,000 free credits when you sign up -- no credit card, no trial countdown timer for the free tier. Those credits are enough to generate anywhere from 50 to 125+ images depending on which models you choose.

Step 1: Create Your Oakgen Account

Head to Oakgen.ai and click Sign Up. You can register with your email or Google account. The process takes about 15 seconds, and you will land on your dashboard with 1,000 credits already in your balance.

Step 2: Open the Image Generator

From your dashboard, click Image Generator in the sidebar or navigate directly to oakgen.ai/image-generator. You will see a clean interface with three main areas:

• Model selector at the top -- where you choose which AI model to use
• Prompt field in the center -- where you describe what you want
• Settings panel on the side -- where you fine-tune the output

Step 3: Choose Your Model

This is the most important decision you will make. Oakgen offers 40+ image models, and each has different strengths. Here are the top recommendations for beginners:

If you are not sure which to pick, start with Flux 2 Pro for realistic images or Nano Banana 2 for versatile all-around generation. You can always switch models later without losing your prompt.

Step 4: Write Your Prompt

The prompt is your instruction to the AI. The more specific you are, the better your results will be. Here is how to structure an effective prompt:

The Basic Formula

Subject + Setting + Style + Technical Details

Instead of writing "a cat," try:

"A fluffy orange tabby cat sitting on a windowsill, afternoon sunlight casting warm shadows, cozy apartment interior with plants in the background, professional pet photography, shallow depth of field, warm color palette"

What to Include in Your Prompt

• Subject: What is the main focus? Be specific about appearance, pose, expression
• Setting/Background: Where is it? Indoor, outdoor, abstract?
• Style: Photography, illustration, painting, 3D render, watercolor?
• Lighting: Golden hour, studio lighting, neon, dramatic shadows?
• Camera details: 85mm lens, wide angle, aerial view, macro shot?
• Mood: Peaceful, dramatic, playful, mysterious?

Negative Prompts

Some models on Oakgen support negative prompts -- things you specifically do not want in the image. If your portraits keep generating extra fingers or your landscapes have unwanted text, add those to the negative prompt field:

Negative: "blurry, low quality, watermark, extra fingers, distorted face"

Step 5: Configure Your Settings

Before hitting Generate, adjust these settings based on your needs:

Aspect Ratio

Choose the shape of your output image:

• 1:1 -- Instagram posts, profile pictures, product shots
• 16:9 -- YouTube thumbnails, desktop wallpapers, presentations
• 9:16 -- Instagram Stories, TikTok covers, mobile wallpapers
• 4:3 -- Blog headers, traditional photo format
• 21:9 -- Ultrawide banners, cinematic compositions

Image Quality

Higher quality settings produce sharper, more detailed images but cost more credits. For quick drafts and iterations, use standard quality. Switch to high quality for final outputs.

Reference Images

Some models (like Nano Banana 2 with up to 14 references) let you upload existing images to guide the generation. Use these for:

• Maintaining a consistent character across multiple images
• Matching a specific art style
• Using a product photo as a starting point

Seed Number

Every generation uses a random seed. If you find a result you like but want to make small adjustments, lock the seed and modify your prompt. The composition will stay similar while the changes you describe take effect.

Step 6: Generate and Review

Click Generate and wait a few seconds. Your image will appear in the output panel. From here you can:

• Download in full resolution
• Regenerate with the same settings for a different variation
• Edit the prompt and generate again
• Send to Image Editor via the Image Editor for manual adjustments
• Upscale using the Image Upscaler for higher resolution
• Animate by sending it to the Video Generator as an image-to-video source

Model Recommendations by Use Case

Not sure which of the 40+ models to use? Here are our picks for common creative tasks:

Photorealistic Content

Best model: Flux 2 Pro

Flux 2 Pro produces the most convincing photorealistic images on Oakgen. It excels at portraits, landscapes, product photography, and architectural visualization. If you need images that could pass as real photographs, start here.

Social Media Graphics with Text

Best model: Ideogram V3

Need text in your images -- quotes, brand names, event dates? Ideogram V3 has the most reliable text rendering. It also handles logo-style compositions well, making it ideal for social media posts that need readable typography.

4K Print-Ready Output

Best model: Nano Banana 2

Nano Banana 2 generates natively at 4096x4096, which means no upscaling artifacts. For print designers, large-format displays, and high-resolution marketing materials, it is the most practical choice.

Illustrations and Icons

Best model: Recraft V3

Recraft V3 specializes in clean illustrations, vector-style art, and icon design. If your project calls for a non-photorealistic aesthetic -- flat design, line art, cartoon style -- Recraft is your best bet.

Concept Art and Creative Exploration

Best model: GPT Image 1.5

GPT Image 1.5 interprets creative and abstract prompts exceptionally well. It is the model to use when you want something imaginative, unexpected, or conceptually rich.

Common Mistakes and How to Avoid Them

Being Too Vague

"A landscape" will give you something generic. "A misty mountain valley at dawn, pine forests covering the slopes, a winding river reflecting pink clouds, shot from a high vantage point, landscape photography" gives the AI enough information to produce something specific and compelling.

Ignoring Aspect Ratio

Generating a 1:1 image when you need a 16:9 banner means you will lose content when cropping. Always set the aspect ratio to match your final use case before generating.

Not Trying Multiple Models

Different models interpret the same prompt differently. A portrait prompt in Flux 2 Pro looks photographic. The same prompt in Recraft V3 might produce an illustration. Spend a few credits testing 2-3 models with your prompt to find the best fit.

Overloading the Prompt

While specific prompts are better, cramming 200 words of conflicting instructions confuses the model. Aim for 1-3 clear sentences that describe the most important elements. Quality of description beats quantity.

Beyond Single Images: What Else Can You Do?

Once you are comfortable generating images, explore the rest of Oakgen's creative suite:

• Photo Studio -- Professional product photography with AI backgrounds and lighting
• Avatar Generator -- Create consistent character avatars from reference photos
• Image Upscaler -- Enhance any image to 4K or beyond
• AI Video Generator -- Animate your images with 17 video models
• Talking Photo -- Make portraits speak with lip-synced audio
• Music Generator -- Create background tracks for your video content
• Text to 3D -- Generate 3D models from text descriptions

Pricing and Getting More Credits

Your 1,000 free starting credits go a long way, but if you need more, Oakgen's plans are straightforward:

| Plan | Price | Monthly Credits | |------|-------|----------------| | Basic | $9/mo | 2,000 credits | | Pro | $19/mo | 5,000 credits | | Ultimate | $29/mo | 10,000 credits | | Creator | $99/mo | 50,000 credits |

Every paid plan includes a 7-day free trial. Use code LAUNCH25 for 25% off your first payment (valid through April 7, 2026).