longcat-image/text-to-image
Create multilingual, high-fidelity visuals with precise text-driven generation and seamless edit control.
| Parameter | Type | Default/Range | Description |
|---|---|---|---|
| prompt | string | "" | Required text instruction describing the image to generate. |
| seed | integer | 0 | Seed for reproducibility. Use a fixed value for deterministic results; set 0 to randomize. |
| Parameter | Type | Default/Range | Description |
|---|---|---|---|
| image_size | string (enum) | landscape_4_3 | Preset sizes: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9. |
| output_format | string (enum) | jpeg | Output format selection. Choose jpeg for compact files or png for lossless output. |
Developers can integrate Flux 2 Max with the RunComfy API using standard HTTP POST requests and JSON payloads. Provide the prompt, select an image_size preset (or Custom where supported), set safety_tolerance, seed, and output_format. The API supports synchronous data-URI responses or asynchronous task creation with polling for production pipelines.
Note: API Endpoint for Flux 2 Max
Create multilingual, high-fidelity visuals with precise text-driven generation and seamless edit control.
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Flux 2 Max text-to-image currently supports up to 4 megapixel outputs at any custom aspect ratio. However, generation is constrained by prompt token length (approximately 320 tokens) and GPU memory. The model accepts at most 10 reference images for style, subject, or composition consistency.
Yes. Flux 2 Max text-to-image accepts structured or JSON-style prompts but enforces a 4KB input payload limit per request. Complex JSON prompts with excessive nested keys may be truncated; therefore, it’s recommended to simplify the structure if prompt parsing fails.
To move from Playground testing to production, create an API key in your RunComfy dashboard, replicate the same prompt and configuration used in the Playground for Flux 2 Max text-to-image, and call the /generate endpoint with proper authorization headers. Costs transition from free trial USD credits to standard per-image billing upon deployment.
Flux 2 Max text-to-image uses an upgraded latent flow matching backbone and Mistral-3–derived vision-language encoder. It delivers cleaner lighting, stronger texture fidelity, and sharper multilingual typography compared to Flux 2 Pro, Flex, or Dev versions, ensuring production-level visual fidelity.
Due to its adaptive attention mechanisms and refined flow diffusion layers, Flux 2 Max text-to-image can blend up to 10 reference inputs with minimal drift, enabling consistent character or product identity across scenes—something that previous models often struggled to maintain.
Flux 2 Max text-to-image excels in advertising, e-commerce visualization, interface mockups, and illustration pipelines where accurate lighting, texture realism, and typography matter. It is ideal for both creative professionals and technical artists seeking precise aesthetic control.
Flux 2 Max text-to-image delivers industry-leading text rendering fidelity. It decodes typographic prompts directly at the latent level, resulting in crisp, readable fonts suitable for posters, UI assets, infographics, and multilingual text compositions.
For self-hosting or dev operations, Flux 2 Max text-to-image performs best on GPUs with at least 24GB VRAM when running at maximum quality. It uses FP8 quantization to optimize throughput, so modern RTX hardware is strongly recommended for stable performance.
Flux 2 Max text-to-image competes strongly with both Nano Banana Pro and Seedream 4.5. Although those models reach full 4K output, Flux 2 Max achieves superior reference fidelity, hex color matching, and color coherence, often ranking near the top in realism and typography clarity benchmarks.
Flux 2 Max text-to-image can be used commercially via the Pro or Flex tiers on RunComfy, subject to the Black Forest Labs licensing terms available on docs.bfl.ai. Users are advised to review those guidelines to ensure compliance for paid campaigns or redistributable content.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Playground, enabling artists to harness the latest AI tools to create incredible art.