# Decart: priced, API-accessible real-time models - Oasis 3 Preview (text-prompted driving world model) and Lucy 2.5 live video editing at about $0.02 per second

- id: art_01M5NGYXRM4MTKPNMHWCC283H1
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T06, T09, T15 · tags: none
- updated: 2026-10-23T23:18:58.063Z
- url: https://veyrul.com/articles/art_01M5NGYXRM4MTKPNMHWCC283H1

Decart's API platform (docs fetched 2026-10-23) is one of few places where a world model is a paid, documented API rather than a demo. Oasis 3 Preview (released June 2026, R3): set a scene with a text prompt, then send chunks of exactly four [throttle, steering] actions in [-1, 1] and receive four generated frames for each of three camera streams (left_forward, front, right_forward) over a stateful gRPC session; a new prompt resets the world context; Python SDK decart-oasis; a browser playable preview exists; the docs pitch it as a learned driving simulator for RL, with a PPO Colab (R1). It is driving-specific (vehicle controls, three car-mounted views), not a general walkable world. Pricing (R2): pay-as-you-go, no subscription; Oasis 3 Preview $0.02 per second (a 60 s session = $1.20); Lucy 2.5 realtime video editing (add/replace/remove objects, swap characters, change backgrounds live) $0.02/s at 720p or $0.04/s in fast mode, $0.04/s for batch video; Lucy Restyle 2 $0.01/s; image ...

Decart's API platform (docs fetched 2026-10-23) is one of few places where a world model is a paid, documented API rather than a demo. Oasis 3 Preview (released June 2026, R3): set a scene with a text prompt, then send chunks of exactly four [throttle, steering] actions in [-1, 1] and receive four generated frames for each of three camera streams (left_forward, front, right_forward) over a stateful gRPC session; a new prompt resets the world context; Python SDK decart-oasis; a browser playable preview exists; the docs pitch it as a learned driving simulator for RL, with a PPO Colab (R1). It is driving-specific (vehicle controls, three car-mounted views), not a general walkable world. Pricing (R2): pay-as-you-go, no subscription; Oasis 3 Preview $0.02 per second (a 60 s session = $1.20); Lucy 2.5 realtime video editing (add/replace/remove objects, swap characters, change backgrounds live) $0.02/s at 720p or $0.04/s in fast mode, $0.04/s for batch video; Lucy Restyle 2 $0.01/s; image edit $0.01-0.02; new accounts get free credits. Release cadence (R3): Lucy 2 (Feb 2026), 1080p realtime (May), Oasis 3 Preview (June), Lucy 2.5 (July), fast mode and older try-on model retirements (Sept), one API hostname (Oct). Terms (R4): Decart assigns Output rights to the user, commercial use permitted, outputs may not be unique. Use for creators: live-stream character/background swaps and interactive previsualisation are affordable to prototype; for walkable 3D worlds compare World Labs Marble (C3-B434-01) and open world models (C3-B399-01, C3-B460-01).

Curator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Docs only; no API calls made. Provider documentation as served 2026-10-23; models, limits, terms and prices change without notice.

Limitations: Docs only; no API calls made (no paid calls, no source execution); latency, resolution and visual quality of Oasis 3 not measured here; "Preview" status implies change; the terms excerpt is the docs copy and may differ from the version in force on the platform; training-use of user Input not checked in the terms.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://docs.platform.decart.ai/models/realtime/oasis-3.md",
      "note": "\"Actions and frames\"; Realtime models note; Output ownership"
    },
    {
      "url": "https://docs.platform.decart.ai/getting-started/pricing.md",
      "note": "\"Actions and frames\"; Realtime models note; Output ownership"
    },
    {
      "url": "https://docs.platform.decart.ai/resources/terms-of-service.md",
      "note": "\"Actions and frames\"; Realtime models note; Output ownership"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Decart's API platform (docs fetched 2026-10-23) is one of few places where a world model is a paid, documented API rather than a demo. Oasis 3 Preview (released June 2026, R3): set a scene with a text prompt, then send chunks of exactly four [throttle, steering] actions in [-1, 1] and receive four generated frames for each of three camera streams (left_forward, front, right_forward) over a stateful gRPC session; a new prompt resets the world context; Python SDK decart-oasis; a browser playable preview exists; the docs pitch it as a learned driving simulator for RL, with a PPO Colab (R1). It is driving-specific (vehicle controls, three car-mounted views), not a general walkable world. Pricing (R2): pay-as-you-go, no subscription; Oasis 3 Preview $0.02 per second (a 60 s session = $1.20); Lucy 2.5 realtime video editing (add/replace/remove objects, swap characters, change backgrounds live) $0.02/s at 720p or $0.04/s in fast mode, $0.04/s for batch video; Lucy Restyle 2 $0.01/s; image edit $0.01-0.02; new accounts get free credits. Release cadence (R3): Lucy 2 (Feb 2026), 1080p realtime (May), Oasis 3 Preview (June), Lucy 2.5 (July), fast mode and older try-on model retirements (Sept), one API hostname (Oct). Terms (R4): Decart assigns Output rights to the user, commercial use permitted, outputs may not be unique. Use for creators: live-stream character/background swaps and interactive previsualisation are affordable to prototype; for walkable 3D worlds compare World Labs Marble (C3-B434-01) and open world models (C3-B399-01, C3-B460-01). · locator: "Actions and frames"; Realtime models note; Output ownership · source: https://docs.platform.decart.ai/models/realtime/oasis-3.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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