KeiSeiKit-1.0/_blocks/api-fal-ai.md
Parfii-bot 0be354a920 KeiSeiKit-public — clean state
Single-commit clean baseline after security scrub of niche-tells,
project codenames, internal jargon, and contributor-email leaks.

Contents:
- 100 Rust crates (_primitives/_rust/)
- 37 agent manifests (_manifests/) + generated specs (_generated/)
- 67 user-invocable skills (skills/)
- 33 hooks (hooks/)
- Composition blocks (_blocks/)
- Documentation (docs/, README.md)
- TS adapter packages (_ts_packages/)
- Assembler (_assembler/)
- Roles (_roles/)
- Templates (_templates/)
- Forgejo CI (.forgejo/)

Author: Denis Parfionovich <info@greendragon.info>

License: see LICENSE.
2026-05-01 12:09:03 +08:00

2.7 KiB
Raw Blame History

API — fal.ai (image / video / 3D)

Live pricing: WebFetch https://fal.ai/pricing before any batch >$2. Maintain your own model snapshot in your memory dir to avoid re-verifying every call.

Model catalog (verify before launch — model IDs and prices change):

Asset Model Endpoint Price
Hero premium FLUX.2 Pro fal-ai/flux-2-pro $0.03-0.045/MP
Hero budget FLUX.1 Dev fal-ai/flux/dev $0.025/MP
3D icons Recraft V3 handmade_3d fal-ai/recraft/v3/text-to-image $0.04
SVG Recraft V4 Vector fal-ai/recraft/v4/text-to-vector $0.08
BG removal Bria RMBG 2.0 fal-ai/bria/background/remove $0.018
Video budget LTX 2.0 Fast fal-ai/ltx-2/text-to-video/fast $0.04/sec
Video hero loop Luma Ray 2 I2V fal-ai/luma-dream-machine/ray-2/image-to-video $0.50/5sec@540p
Video Kling Kling v3 Pro I2V fal-ai/kling-video/v3/pro/image-to-video $0.224/sec
Video Veo 3 Veo 3 fal-ai/veo3 $0.20-0.40/sec
3D GLB Trellis fal-ai/trellis $0.02

Hard-learned per-model gotchas:

  • FLUX.2 Pro ZERO-CONFIG — NO guidance_scale (API rejects), safety_tolerance: "5", enable_prompt_expansion: false, image_urls[] always array (even for 1 ref).
  • Kling O3 — prompt hard limit 2500 chars; image_url NOT start_image_url (V3 legacy); elements + voice_ids can be sent together on O3 only; generate_audio: true ALWAYS (else silent video).
  • Luma Ray 2loop: true for hero sections (seamless loop, same first/last frame).
  • Async flow: POST → request_id → poll status → fetch response_url. Don't expect sync result.

NSFW filter: default ON for Flux/Recraft. safety_tolerance raises threshold (higher = more permissive); "5" is the documented max. Failed content returns a flagged error, still billed.

Webhook vs poll: webhooks need a public HTTPS URL (tunnel with ngrok/CF for local). Poll is fine for <30-min batches.

Cost discipline: 1-2 smoke samples before fanning out to ≥5 generations. Full-site budget template: 20 icons + 5 hero + 10 bg + 35 bg-removal + 35 upscale × 2 iterations ≈ $4-8. Hand off to kei-cost-guardian on any batch >$5.

API key: FAL_KEY in <repo>/.env. Never in chat, source, curl examples, or git (see domain-has-secrets.md).

Forbidden: adding guidance_scale to FLUX.2 Pro; Kling O3 prompts >2500 chars; launching any batch without kei-cost-guardian handoff; quoting prices from memory for session total >$2 (re-verify via WebFetch); FLUX.2 Pro for plain backgrounds when FLUX.1 Dev does the job (pick cheapest-that-matches-brief); hard-coding FAL_KEY in source.