GPT Image 2.5 sizes: fix invalid dimensions and request 4K

Validate GPT Image 2.5 dimensions before calling the API. Check 1080x1920, exact 9:16 alternatives, 4K limits and generation versus export sizes.

GPT Image 2.5 transparent PNG: fix opaque backgrounds

Check whether your GPT Image 2.5 PNG has transparent pixels or a painted checkerboard. Verify output settings, original downloads and alpha before exporting.

Moving from GPT Image 2 to GPT Image 2.5: what to test before switching

Choose Flare or Sunburst, preserve a GPT Image 2 baseline, check image settings, and compare the cost of accepted outputs before migrating.

Which API provider should you use with OpenCode?

Compare OpenCode Zen, Go, direct API accounts, OpenRouter and Ofox by billing, model access and setup before choosing where to buy coding API access.

Codex GPT-5.5 model not found: diagnose the 404

Codex says GPT-5.5 does not exist? Check your sign-in method, active model, provider and configuration overrides before changing accounts or API keys.

GPT-6 Astra Missing on Plus? Check Chat, Work and Codex

Find where GPT-6 Astra is available on Plus. Check Chat, Work and Codex access, rollout status, client versions and workspace permissions before buying credits.

GPT-6 Pro and Codex Limits: Why a Reset May Not Help

Separate GPT-6 Pro Chat limits, shared Work/Codex usage and API billing. Learn why the September 7 reset added no banked reset and what to check next.

Grok Imagine Image 2.0 API Pricing by Quality

Compare Grok Imagine Image 2.0 API pricing across quality and resolution, calculate editing costs, and budget for 100 or 1,000 generated images with examples.

Grok Imagine Image API: Generate Your First Image

Use the Grok Imagine Image API with curl and Python. Set quality and resolution, save the returned image, and check common integration mistakes before scaling.

Grok Imagine Image Quality Retirement: What to Change

Prepare for Grok Imagine Image Quality retirement on November 2: check model routing, pin Image 2.0 quality, compare settings, and plan a controlled migration.