# Riverflow V2 Fast

Riverflow V2 Fast is the fastest variant of Sourceful's Riverflow 2.0 lineup, best for production deployments and latency-critical workflows.

The Riverflow 2.0 series represents SOTA performance on image generation and editing tasks, using an integrated reasoning model to boost reliability and tackle complex challenges.

Pricing is $0.02 per 1K output image and $0.04 per 2K output image. Does not support 4K image output.

Additional features:
- Custom font rendering via font_inputs ($0.03/font, max 2)
- Image enhancement via super_resolution_references ($0.20/reference, max 4)

See the image generation docs for details: https://openrouter.ai/docs/features/multimodal/image-generation

Note: Sourceful imposes a 4.5MB request size limit, therefore it is highly recommended to pass image URLs instead of Base64 data.

## Model Information

- **Organization**: [Sourceful](/llm.txt)
- **Slug**: riverflow-v2-fast
- **Available at Providers**: 2
- **Release Date**: February 2, 2026

## Providers

| Provider | Name | $ Input (per 1M) | $ Output (per 1M) | Free | Link |
|----------|------|-----------------|------------------|------|------|
| [OpenRouter](/llm/openrouter.txt) | Riverflow V2 Fast | 0.00 | 0.00 |  | [View](https://openrouter.ai/sourceful/riverflow-v2-fast-20260130) |
| [Writingmate](/llm/writingmate.txt) | Sourceful: Riverflow V2 Fast |  |  |  | [View](https://writingmate.ai/models/sourceful/riverflow-v2-fast) |

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