Models / GPT Image 1ID: openai/gpt-image-1
image generation model by OpenAI

GPT Image 1

Multimodal OpenAI image synthesis model accepting text and visual prompts to generate and edit images with inpainting support.

Maker

OpenAI

Served On

OpenAI

Specifications

Context window, ranked against other image generation models

Insufficient data

No published context window for this model or its peers.

Context window

—

Max output

—

Modality

image generation

Vision
Function calling
System prompt

Pricing

Rates are read live

Pricing for gpt-image-1 is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.

Availability

Not enough data yet

We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.

How GPT Image 1 is billed

Billed at the provider's list price, with no per-token markup.

Exact list price
Tokens settle at the published rate of the model that served your call.
Cache discounts passed through
Provider prompt-caching discounts reach your balance with no added fee.
Cost on every response
Each response carries the x-nr-request-cost header, so you can reconcile spend per request.

More from OpenAI

Frequently asked questions

What is GPT Image 1?

Multimodal OpenAI image synthesis model accepting text and visual prompts to generate and edit images with inpainting support.

How much does GPT Image 1 cost?

GPT Image 1 is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.

Does GPT Image 1 support tool calling and structured outputs?

No. GPT Image 1 does not support tool calling, so it cannot invoke external tools or functions.

What inputs and outputs does GPT Image 1 support?

GPT Image 1 is an image model: it takes text prompts as input and generates images as output.

How do I use GPT Image 1 via nRouter?

Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "openai/gpt-image-1".

Where is the GPT Image 1 documentation?

Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.

What other image models does OpenAI have?

Other OpenAI image models on nRouter include Whisper 1 (nrouter.ai/models/whisper-1), o1 (nrouter.ai/models/o1), GPT-5.5 Pro (nrouter.ai/models/gpt-5.5-pro), GPT-4o Mini TTS (nrouter.ai/models/gpt-4o-mini-tts-2025-12-15).

Pricing is live — see above for current rates.