Google Flow API v1

November 17, 2025 (June 5, 2026)

This is the experimental API for Google Flow by Google Labs.

Google Flow creates cinematic AI clips with Veo and Gemini Omni Flash, images with Imagen 4, Nano Banana / Gemini 2.5 Flash Image, Nano Banana 2 / Gemini 2.5 Pro Image, and Nano Banana Pro / Gemini 3 Pro Image.

Image generation: Works with any Google AI subscription or free account.

Video generation: Requires a paid Google AI subscription. Monthly Flow credit allowance per tier:

Tier	Price	Flow credits/mo	~Cost / credit
Plus	$7.99/mo	200	~$0.040
Pro	$9.99/mo first 6 mo, then $19.99/mo	1,000	~$0.020
Ultra $100	$99.99/mo	10,000	~$0.010
Ultra $200	$199.99/mo	25,000	~$0.008

Credit cost per generation and max generations/month per tier, per Google’s official table. Each cell shows: credits · est. $/gen · max gens/mo.

Model	Plus (200 cr/mo)	Pro (1,000 cr/mo)	Ultra $100 (10,000 cr/mo)	Ultra $200 (25,000 cr/mo)
`Veo 3.1 Lite`	10 cr · ~$0.40 20 gens/mo	10 cr · ~$0.20 100 gens/mo	5 cr · ~$0.05 2,000 gens/mo	5 cr · ~$0.04 5,000 gens/mo
`Veo 3.1 Fast`	20 cr · ~$0.80 10 gens/mo	20 cr · ~$0.40 50 gens/mo	10 cr · ~$0.10 1,000 gens/mo	10 cr · ~$0.08 2,500 gens/mo
`Veo 3.1 Quality`	100 cr · ~$4.00 2 gens/mo	100 cr · ~$2.00 10 gens/mo	100 cr · ~$1.00 100 gens/mo	100 cr · ~$0.80 250 gens/mo
`Veo 3.1 Lite Lower Priority`	—	—	—	0 cr unlimited (Ultra $200 only)
`Gemini Omni Flash` — 4s	15 cr · ~$0.60 13 gens/mo	15 cr · ~$0.30 66 gens/mo	15 cr · ~$0.15 666 gens/mo	15 cr · ~$0.12 1,666 gens/mo
`Gemini Omni Flash` — 6s	20 cr · ~$0.80 10 gens/mo	20 cr · ~$0.40 50 gens/mo	20 cr · ~$0.20 500 gens/mo	20 cr · ~$0.16 1,250 gens/mo
`Gemini Omni Flash` — 8s	25 cr · ~$1.00 8 gens/mo	25 cr · ~$0.50 40 gens/mo	25 cr · ~$0.25 400 gens/mo	25 cr · ~$0.20 1,000 gens/mo
`Gemini Omni Flash` — 10s	30 cr · ~$1.20 6 gens/mo	30 cr · ~$0.60 33 gens/mo	30 cr · ~$0.30 333 gens/mo	30 cr · ~$0.24 833 gens/mo
`Gemini Omni Flash` — video editing	40 cr · ~$1.60 5 gens/mo	40 cr · ~$0.80 25 gens/mo	40 cr · ~$0.40 250 gens/mo	40 cr · ~$0.32 625 gens/mo

Gemini Omni Flash is audio-native — text-to-video, reference-to-video, image-to-video, and video editing. See the demo.
Voice narration — 30 system voice presets plus unlimited custom user voices (per-account, with your own dialog + performance) via referenceAudio_1..5 (omni-flash) or single referenceAudio_1 (Veo R2V). Create with POST /voices.
Reusable Characters — bundle 1–2 reference images + an optional voice into a named character via POST /characters, then reference it from POST /videos or POST /images via character_1..7 to keep the same identity across generations. Characters share the per-model image-ref budget.
Output duration — 4, 6, 8, 10 seconds (default 8). 4/6 Ultra-only on Veo T2V/I2V/I2V-FL; 10 omni-flash only.

You can configure up to 50 Google Flow accounts per single useapi.net subscription.

Captcha: Image and video generation (POST /images, POST /images/upscale, POST /videos, POST /videos/upscale, POST /videos/extend) and voice creation (POST /voices) require reCAPTCHA solving. POST /videos/gif, POST /videos/concatenate, and POST /characters do not require captcha.

Users receive 100 free captcha credits (powered by CapSolver) when adding their first Google Flow account
After free credits are exhausted, configure provider API keys via POST /accounts/captcha-providers
Cost: ~$0.80-$3.00 per 1,000 solves depending on provider
Compare provider success rates with GET /accounts/captcha-stats?anonymized=true
See Setup Google Flow - Captcha Providers for details

⚙️ Setup Google Flow

📦 Postman collection (June 5, 2026)
🤖 LLM-friendly API spec Feed this to your LLM to build integrations

Examples:

Developer Community:

Google Flow API v1

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