GPT Image 1.5
Image generation model by OpenAI.
Enhanced multimodal generation model by OpenAI offering refined prompt adherence, image editing, and text-image generation outputs.
This model is deprecated
GPT Image 1.5 has been deprecated. It is still served on nRouter and can still be called.
Caller Notice: To help identify integrations still relying on this model, all API responses now include x-nr-model-deprecated: true and Warning: 299 - "Model deprecated" headers.
Specifications
Context window, ranked against other image generation models
Insufficient data
No published context window for this model or its peers.
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image generation
Pricing
Rates are read live
Pricing for gpt-image-1.5 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 1.5 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-costheader, so you can reconcile spend per request.
More from OpenAI
FAQs
What is GPT Image 1.5?
Enhanced multimodal generation model by OpenAI offering refined prompt adherence, image editing, and text-image generation outputs.
How much does GPT Image 1.5 cost?
GPT Image 1.5 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 1.5 support tool calling and structured outputs?
No. GPT Image 1.5 does not support tool calling, so it cannot invoke external tools or functions.
What inputs and outputs does GPT Image 1.5 support?
GPT Image 1.5 is an image model: it takes text prompts as input and generates images as output.
How do I use GPT Image 1.5 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-1.5".
When was GPT Image 1.5 released?
GPT Image 1.5 was released on December 16, 2025.
Where is the GPT Image 1.5 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 GPT-OSS 120B 1 (nrouter.ai/models/gpt-oss-120b-1), GPT-6.1 Sol (nrouter.ai/models/gpt-6.1-sol), GPT-5.2 Pro (nrouter.ai/models/gpt-5.2-pro-2025-12-11), GPT Audio 1.5 (nrouter.ai/models/gpt-audio-1.5).