GPT Image 2.5 Flare 2K API pricing and setup
GPT Image 2.5 Flare 2K (gpt-image-2.5-flare-2k) is a OpenAI model. It is available through the relay.fast API with one relay.fast key and pay-as-you-go billing.
Prices checked from the live catalog. "From" is the lowest price among the relay.fast sources that currently serve the model. The price you pay depends on the source your request uses and can change on any day. The pricing page always shows current values.
| List price | $3.75 per image |
|---|---|
| relay.fast price from | $0.075 per image |
| Lower than the official price by | up to 98% |
| Endpoints | /v1/images/generations |
Example request
Keep the key in the RELAY_FAST_API_KEY environment variable.
curl https://relay.fast/v1/images/generations \
-H "Authorization: Bearer $RELAY_FAST_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-image-2.5-flare-2k","prompt":"A lighthouse at dawn, watercolor"}'Frequently asked questions
How much does the GPT Image 2.5 Flare 2K API cost?
On 2026-11-05, GPT Image 2.5 Flare 2K costs from $0.075 per image on relay.fast, against a list price of $3.75. The price depends on the source your request uses and can change; https://relay.fast/pricing/gpt-image-2.5-flare-2k shows the current value.
Which API endpoint does GPT Image 2.5 Flare 2K use?
Call /v1/images/generations with a relay.fast API key. OpenAI-compatible SDKs use the base URL https://relay.fast/v1.
Do I need a OpenAI account to use GPT Image 2.5 Flare 2K?
No. You use a relay.fast account and API key. relay.fast is an independent API gateway and is not affiliated with OpenAI.
Other OpenAI models
GPT Image 2 · GPT Image 2.5 · GPT Image 2.5 Flare · GPT Image 2.5 Flare 4K · GPT Image 2.5 Sunburst · GPT Image 2.5 Sunburst 2K · GPT Image 2.5 Sunburst 4K · GPT Image 2.6 · GPT Image 2.6 Flare · GPT Image 2.6 Sunburst