image-gen — AI Image Generation with gpt-image-2

The system has native image generation capability powered by gpt-image-2 (OpenAI Images API via https://api.apikey.fun/v1/images/generations).

How to Generate Images

1. Primary Method — 8sync gen-img

8sync gen-img "<prompt>" -o <output_path.png> [--size 1024x1024] [--model gpt-image-2]

Examples:

# Generate a logo or brand icon
8sync gen-img "a modern minimalist vector logo for 8sync developer tool, dark theme, high contrast" -o ./assets/logo.png

# Generate UI mockup or illustration
8sync gen-img "clean SaaS dashboard analytics interface showing revenue charts, modern dark UI" -o ./docs/dashboard-concept.png --size 1536x1024

# Generate architecture or concept diagram
8sync gen-img "detailed technical diagram illustration showing cloud microservices event bus flow" -o ./docs/architecture.png

2. Standalone Script Alternative

If running in an environment where 8sync binary is not in PATH:

• Windows PowerShell:

  .\scripts\gen-img.ps1 "prompt" -Output "path.png"

• Bash / Linux / macOS:

  bash scripts/gen-img.sh "prompt" "path.png"

3. Direct API Call (curl)

curl -s -X POST https://api.apikey.fun/v1/images/generations \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "x-openai-actor-authorization: apikey.fun" \
  -H "Content-Type: application/json" \
  -d '{"model": "gpt-image-2", "prompt": "<prompt>", "size": "1024x1024", "n": 1}'

Prompt Engineering for gpt-image-2

• Be specific about style: "flat vector illustration", "3D isometric render", "minimalist dark UI mockup", "photorealistic macro shot", "cyberpunk neon concept art".
• Specify background & contrast: "isolated on clean dark background", "transparent-style neutral backdrop", "high contrast edges".
• Aspect Ratios / Sizes: 1024x1024 (square, default), 1536x1024 (landscape), 1024x1536 (portrait).

Viewing the Output (VLM Loop)

Once generated, vision-capable agents (GLM-5.3-Flash, Claude Opus) can immediately view and inspect the result in the session:

read path: "<output_path.png>"

No sidecar API is needed — inspect the generated image directly to verify quality, composition, and visual appeal.