feat: add fast, lower-credit 360p draft generation (--draft) - #12
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feat: add fast, lower-credit 360p draft generation (--draft)#12rainmeter33-jpg wants to merge 2 commits into
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Support a --draft flag (HTTP field draft: true) that requests a faster, lower-credit 360p video draft by computing the _360p model key in the generation route, reusing the existing video_model override (4/5/6/7 credits vs 7/10/12/15 at 720p). Engine untouched.
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Summary
Google Flow's Gemini Omni 1.1 Flash (Aug 27, 2026) added a resolution ladder — 360p → 720p (default) → 1080p → 4K — where the 360p step is a draft mode: it renders faster and bills at roughly half the credits of the 720p default. It is the "draft quickly, upscale for quality" workflow behind the Flow UI's 360p option.
The wire format is a model-key suffix:
abra_t2v_{duration}s_360p(verified live against the Flow sandbox API; the generation request otherwise has no resolution field, and the deliveryresolutionparameter only covers the 1080p/4K upsampler pass).This PR threads a
draftoption through the whole stack:generate_video(t2v) andgenerate_video_i2v/generate_video_fl/generate_video_r2vgaindraft: bool = False; when set (and no explicitvideo_model), the model key gets the_360psuffixPOST /v1/videos/generationsaccepts"draft": true(VideoGenerationRequest)flow video --draft--draftusage + the credit tableVerified
360x640output at 4 credits (vs 7 at 720p); 6s draft → 5 credits (vs 10).tests/test_video_draft.py): engine model-key for t2v/i2v, explicitvideo_modeloverride wins over draft, CLI payload flag.test_ext_http_apiport-binding failures pass once port 9227 is free).Usage
Note for maintainers: credit figures are the observed sandbox billing; the repo's
CREDITS_PER_VIDEOtable currently reflects the 720p prices, so a--draftgeneration is also a natural way to stretch daily free credits further.