Models
Sourceful
Riverflow 2 Max Preview

Sourceful

Riverflow 2 Max Preview

Name: Riverflow 2 Max Preview
Brand: Sourceful
Price: 0.075 USD
Availability: InStock

AI Image Editing Model

Sourceful's most powerful Riverflow 2 variant with maximum thinking time for highest quality unified text-to-image and image editing output

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1024 x 1024

Max Resolution

Input / Output

Text Image → Image

Active

Details

Model ID

riverflow-2-max-preview

Also known as: riverflow-2-max

Creator

Sourceful

Family

riverflow

Max Input Images

Ready to integrate?

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

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Providers & Pricing (1)

Riverflow 2 Max Preview is available exclusively through Runware, starting at $0.075/image.

Runware

runware/riverflow-2-max-preview

Provider Model ID: sourceful:2@3

$0.075 /image

View pricing details

riverflow-2-max API OpenAI-compatible

Lumenfall provides an OpenAI-compatible API for Riverflow 2 Max Preview, enabling high-quality image generation and complex image editing through a single integration.

Base URL

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

Model

riverflow-2-max-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-max-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-max-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-max-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-max-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-max-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-max-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 Max Preview FAQ

How much does Riverflow 2 Max Preview cost?

Riverflow 2 Max Preview starts at $0.075 per image through Lumenfall. Pricing varies by provider. Lumenfall does not add any markup to provider pricing.

How do I use Riverflow 2 Max Preview via API?

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

Which providers offer Riverflow 2 Max Preview?

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

What is the maximum resolution for Riverflow 2 Max Preview?

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

Overview

Riverflow 2 Max Preview is the high-performance variant of Sourceful’s latest diffusion model family, designed for unified text-to-image generation and complex image editing. This version is distinguished by an extended internal processing overhead, referred to by the developers as “maximum thinking time,” which prioritizes output fidelity over inference speed. It operates on a unified architecture that allows it to handle both initial generation and modification tasks within a single framework.

Strengths

Text Rendering Accuracy: The model demonstrates high precision when integrating legible typography and specific graphical text into generated images, reducing the common artifacting seen in shorter-latency models.
Unified Task Handling: Unlike models that require separate adapters for editing, Riverflow 2 Max handles text-to-image, image-to-image, and selective editing natively, maintaining stylistic consistency across iterative changes.
Compositional Detail: The extended processing time allows the model to better resolve complex spatial relationships and crowded scenes described in long-form prompts.
Instruction Following: It excels at adhering to nuanced modifiers regarding lighting, texture, and camera perspective, making it suitable for professional design workflows where specific artistic control is required.

Limitations

Inference Latency: Due to its “maximum thinking time” design, this model has a significantly slower generation speed compared to the standard Riverflow 2 or the “Flash” variants, making it less suitable for real-time applications.
Resource Intensity: The computational cost per image is higher, as reflected by its starting price point relative to smaller or less intensive diffusion models.
Preview Status: As a preview release, the model may exhibit occasional inconsistencies in edge cases that are still being refined for the final stable release.

Technical Background

Riverflow 2 Max is built on a consolidated latent diffusion architecture that treats image generation and editing as a single objective. By increasing the iterative refinement steps—Sourceful’s “thinking time” approach—the model explores a wider search space within the latent manifold before decoding the final image. This provides the transformer-based backbone more cycles to align the visual output with the input tokens and any provided image reference.

Best For

Riverflow 2 Max Preview is ideal for high-stakes creative production where image quality and prompt adherence are more critical than rapid throughput. It shines in professional graphic design, advertising asset creation, and complex photo manipulation tasks. Users can explore its capabilities and integrate it into their workflows via Lumenfall’s unified API and interactive playground, which provides a streamlined interface for testing its maximum thinking time outputs alongside other models in the Riverflow family.

Try Riverflow 2 Max Preview in Playground

Generate images with custom prompts — no API key needed.

Open Playground