ActiveSep 23, 2026, 15:00 — Oct 9, 2026, 00:00

Golden Week & Mid-Autumn offer: GPT Image 2.5 at 50% off

From Sep 23, 15:00 to Oct 8, GPT Image 2.5 Flare and Sunburst text-to-image and image-to-image are 50% off, applied automatically in the API and Playground.

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EndedSep 9, 2026, 11:25 — Sep 23, 2026, 11:25

GPT Image 2.5 launch offer: 30% off

Flare and Sunburst are now available with automatic 30% off in the API and Playground.

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EndedMay 8, 2026, 20:00 — May 15, 2026, 20:00

HappyHorse 1.0 Launch · 25% Credits Back

Spend on HappyHorse 1.0 during the launch window and earn 25% back as credits — capped at $100 per user, usable on every model.

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EndedSep 14, 2026, 12:48 — Sep 21, 2026, 12:00

Lyria 3.5 launch offer: 20% off

Generate complete music from text, style, or lyrics. API and Playground requests receive 20% off automatically.

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EndedAug 31, 2026, 09:48 — Sep 7, 2026, 23:59

HeyGen Avatar V model launch | 20% off

HeyGen Avatar V is now available on HiAPI. All users receive 20% off automatically across the API and Playground during the launch offer.

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EndedAug 27, 2026, 12:00 — Sep 3, 2026, 12:00

Wan 3.0 model launch | 20% off

Wan 3.0 is now available on hiAPI. All users receive 20% off automatically across the API and Playground during the launch offer.

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