GPT Image 2.5

Use one exact model ID for every request:

• gpt-image-2.5-flare — faster generation.
• gpt-image-2.5-sunburst — higher-fidelity output and editing control.
• gpt-image-2.5-flare:official — Flare using the official, token-billed variant.
• gpt-image-2.5-sunburst:official — Sunburst using the official, token-billed variant.

Do not send gpt-image-2.5 or gpt-image-2.5:reverse; they are not model IDs.

Setup: See authentication for token setup.

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