GPT Image 2 API: Developer Access Guide
How to call GPT Image 2 via the OpenAI Images API — endpoint, model ID, parameters, and pricing as of April 2026.
GPT Image 2 is accessible through OpenAI's Images API using the model ID gpt-image-2, and GPT Image generation can also be used in Responses API workflows through the image generation tool. For a production build, verify model access, organization verification, current pricing, and rate limits in the OpenAI dashboard before you promise volume or latency to customers.
Key Points
- Endpoint: POST https://api.openai.com/v1/images/generations.
- Current model ID: gpt-image-2.
- OpenAI documents GPT Image 2 for generation and editing workflows.
- Responses API can support multi-turn image generation through the image generation tool.
- Pricing is token-based: image input, cached image input, image output, text input, and cached text input each have separate rates.
- Authentication: standard OpenAI API key in the Authorization header (Bearer token).
- API access can require organization verification and account-level model eligibility.
- Rate limits are organization/project scoped, so copy the live limits from your own dashboard and response headers.
- Free playground access on this site is separate from OpenAI API billing and limits.
Frequently Asked Questions
What is the API model ID for GPT Image 2?
OpenAI's current image generation documentation uses gpt-image-2 for the Image API. Use the exact model string from the official model page because aliases and supported snapshots can change.
Do I need a special tier to use the GPT Image 2 API?
If you cannot select the model, check your account tier, billing status, region, organization verification state, and OpenAI dashboard limits. Model access and rate limits are account-specific.
How much does a GPT Image 2 API call cost?
Pricing is token-based and depends on text input, cached text input, image input, cached image input, and image output tokens. OpenAI's official pricing page is authoritative; use our cost calculator for planning estimates, then confirm against your platform usage dashboard.
Can I use GPT Image 2 for image editing (inpainting) via the API?
OpenAI documents GPT Image 2 for image editing as well as generation. Verify the current Images API reference before building production edit or inpainting flows, especially if your workflow depends on masks, uploads, or image input size limits.
Is the API available globally?
OpenAI operates access restrictions that vary by country and may change over time. Refer to OpenAI's usage policies and regional availability pages for the most up-to-date information.