Models
Sourceful
Riverflow 2 Standard Preview

Sourceful

Riverflow 2 Standard Preview AI Image Editing Model

Name: Riverflow 2 Standard Preview
Brand: Sourceful
Price: 0.035 USD
Availability: InStock

Sourceful's balanced Riverflow 2 variant combining realistic output with reliable detail control and smooth integration of reference products for professional image creation

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1024 x 1024

Max Resolution

Input / Output

Text Image → Image

Active

Details

Model ID

riverflow-2-standard-preview

Also known as: riverflow-2-standard, riverflow-2-base, riverflow-2

Creator

Sourceful

Family

riverflow

Max Input Images

Ready to integrate?

Access riverflow-2-standard-preview via our unified API.

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Providers & Pricing (1)

Riverflow 2 Standard Preview is available exclusively through Runware, starting at $0.035/image.

Runware

runware/riverflow-2-standard-preview

Provider Model ID: sourceful:2@1

$0.035 /image

View pricing details

riverflow-2-standard API OpenAI-compatible

Integrate Riverflow 2 Standard Preview into your applications via Lumenfall's OpenAI-compatible API to programmatically generate realistic images and perform precise image editing using Sourceful’s latest diffusion architecture.

Base URL

https://api.lumenfall.ai/openai/v1

Model

riverflow-2-standard-preview

Text to Image Generate

Create images from text descriptions

curl -X POST \

  https://api.lumenfall.ai/openai/v1/images/generations \

  -H "Authorization: Bearer $LUMENFALL_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "riverflow-2-standard-preview",

    "prompt": "A serene mountain landscape at sunset",

    "size": "1024x1024"

}'

# Response:

# { "created": 1234567890, "data": [{ "url": "https://...", "revised_prompt": "..." }] }

import OpenAI from 'openai';

const client = new OpenAI({

  apiKey: 'YOUR_API_KEY',

  baseURL: 'https://api.lumenfall.ai/openai/v1'

});

const response = await client.images.generate({

  model: 'riverflow-2-standard-preview',

  prompt: 'A serene mountain landscape at sunset',

  size: '1024x1024'

});

// { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }

console.log(response.data[0].url);

from openai import OpenAI

client = OpenAI(

    api_key="YOUR_API_KEY",

    base_url="https://api.lumenfall.ai/openai/v1"

response = client.images.generate(

    model="riverflow-2-standard-preview",

    prompt="A serene mountain landscape at sunset",

    size="1024x1024"

# { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }

print(response.data[0].url)

Image Editing Edit

Transform existing images with text instructions

curl -X POST \

  https://api.lumenfall.ai/openai/v1/images/edits \

  -H "Authorization: Bearer $LUMENFALL_API_KEY" \

  -F "model=riverflow-2-standard-preview" \

  -F "[email protected]" \

  -F "prompt=Add a starry night sky to this image" \

  -F "size=1024x1024"

# Response:

# { "created": 1234567890, "data": [{ "url": "https://...", "revised_prompt": "..." }] }

import OpenAI from 'openai';

import fs from 'fs';

const client = new OpenAI({

  apiKey: 'YOUR_API_KEY',

  baseURL: 'https://api.lumenfall.ai/openai/v1'

});

const response = await client.images.edit({

  model: 'riverflow-2-standard-preview',

  image: fs.createReadStream('source.png'),

  prompt: 'Add a starry night sky to this image',

  size: '1024x1024'

});

// { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }

console.log(response.data[0].url);

from openai import OpenAI

client = OpenAI(

    api_key="YOUR_API_KEY",

    base_url="https://api.lumenfall.ai/openai/v1"

response = client.images.edit(

    model="riverflow-2-standard-preview",

    image=open("source.png", "rb"),

    prompt="Add a starry night sky to this image",

    size="1024x1024"

# { created: 1234567890, data: [{ url: "https://...", revised_prompt: "..." }] }

print(response.data[0].url)

Full API Reference Authentication, endpoints, and more

Gallery

View all 2 images

Riverflow 2 Standard Preview FAQ

How much does Riverflow 2 Standard Preview cost?

Riverflow 2 Standard Preview starts at $0.035 per image through Lumenfall. Pricing varies by provider. Lumenfall does not add any markup to provider pricing.

How do I use Riverflow 2 Standard Preview via API?

You can use Riverflow 2 Standard Preview through Lumenfall's OpenAI-compatible API. Send requests to the unified endpoint with model ID "riverflow-2-standard-preview". Code examples are available in Python, JavaScript, and cURL.

Which providers offer Riverflow 2 Standard Preview?

Riverflow 2 Standard Preview is available through Runware on Lumenfall. Lumenfall automatically routes requests to the best available provider.

What is the maximum resolution for Riverflow 2 Standard Preview?

Riverflow 2 Standard Preview supports images up to 1024x1024 resolution.

Overview

Riverflow 2 Standard Preview is a generative image model developed by Sourceful, designed to sit at the intersection of photorealistic rendering and precise compositional control. It operates as a multimodal bridge, accepting both text and image inputs to produce high-fidelity visual outputs. This “Standard” variant is specifically tuned to maintain structural integrity while integrating external reference products into generated scenes.

Strengths

Reference Integration: Excels at “product-in-scene” generation, where a source image of an object is placed into a new environment while maintaining the object’s original proportions and material properties.
Structural Detail Control: Demonstrates high reliability in following layout constraints provided via image prompts, reducing the “hallucination” of stray limbs or distorted architectural elements.
Balanced Text-to-Image Alignment: Accurately translates complex atmospheric descriptions (lighting, weather, texture) without sacrificing the sharpness of the primary subjects.
Photorealistic Texture Rendering: Particularly effective at simulating organic surfaces such as skin, fabric, and wood grain with a neutral, non-stylized finish.

Limitations

Standard vs. Pro Performance: As the “Standard” variant, it may lack the extreme prompt-adherence granularity found in higher-tier “Pro” versions of the Riverflow family.
Preview Status: This specific version is a preview release, which means users may encounter occasional inconsistencies in edge-case prompt scenarios that will be refined in the final production release.
Inference Latency: Due to its focus on structural fidelity and reference integration, it may have slightly longer generation times compared to models optimized solely for speed.

Technical Background

Riverflow 2 belongs to the Riverflow family of diffusion models, utilizing a specialized architecture focused on multimodal input processing. It is engineered to prioritize “detail control,” likely leveraging an enhanced attention mechanism that balances global prompt semantics with localized image reference features. This training approach allows the model to treat reference images as grounding constraints rather than just aesthetic guides.

Best For

This model is best suited for professional product photography mockups, interior design visualization, and e-commerce asset generation where consistency between a physical object and its generated environment is critical. It is also an excellent choice for creators who need to iterate on specific layouts using image-to-image workflows. Riverflow 2 Standard Preview is accessible through Lumenfall’s unified API and interactive playground, allowing developers to test its reference-handling capabilities alongside other industry-standard models.

Try Riverflow 2 Standard Preview in Playground

Generate images with custom prompts — no API key needed.

Open Playground