LLM Reference

Using Riverflow 2.5 Fast on Runware

Implementation guide · Riverflow · Sourceful

Serverless

Quick Start

  1. 1
    Create an account at Runware and generate an API key.
  2. 2
    Use the Runware SDK or REST API to call sourceful:riverflow-2.5@fast — see the documentation for request format.
  3. 3
    You'll be billed from $0.021 per image by thinking effort. See full pricing.

Code Examples

See Runware documentation for integration details.

About Runware

Runware provides a unified API for image, video, audio, and 3D generation with transparent pay-per-generation pricing. Route across 40+ providers including Kling, Vidu, Recraft, Stability AI, and Alibaba for reliability and cost optimization.

Runware is a multi-model generative API platform offering access to 148+ image, video, audio, and 3D generation models from leading providers via unified API.

Pricing on Runware

TypeRate
1K image thinking effortLow $0.021 / Medium $0.022 / Fast $0.025

Capabilities

VisionMultimodal

About Riverflow 2.5 Fast

Riverflow 2.5 Fast by Sourceful. Speed-optimized text-to-image and image-to-image generation for latency-sensitive production workflows. Supports 1K and 2K resolution outputs with up to 4 input images for editing. Features controllable reasoning effort (low/medium/high). Best suited for rapid creative iteration, packaging exploration, branded product visuals, and latency-sensitive pipelines. Available on Runware.

Model Specs

Released2026-06-04

Provider

Runware