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Flux 2 API
The Flux 2 API is Black Forest Labs' 2025 flagship image suite. Choose Pro for balanced, natural renders or Flex for bold high-contrast visuals — both with the best text rendering of any image model.
Parameters
Drag and drop up to 10 files or click to upload
PNG, JPG, JPEG, WEBP up to 20MB (max 10 files)
Output
Generated content will appear here
The Flux 2 API: Unrivaled Text Rendering
Meets 4K Image Generation
Integrate the Flux 2 API into your pipeline for production-grade images with print-ready typography and pixel-perfect edits.
What is the Flux 2 API?
The Flux 2 API provides access to Black Forest Labs' 2025 flagship model with two distinct variants: Pro for the most natural, balanced lighting and texture, and Flex for the highest-impact, high-contrast look.
The Flux 2 API is known for unrivaled text rendering — handling multi-line slogans, punctuation, and case-sensitive typography with near print-ready accuracy. It natively generates up to 4 megapixels (1440p–4K) without upscaling and supports as many as 10 reference images.
Prompt obedience is intentionally strict in the Flux 2 API, so multi-clause instructions — removals, replacements, layout tweaks — are followed precisely, making it ideal for production graphics where wording and layout must match the brief.
Why the Flux 2 API Leads in Text-to-Image Quality
Capabilities that set the Flux 2 API apart from every other image generation model
Unmatched text rendering accuracy for slogans, packaging, and signage
Native 4MP renders (1440p–4K) with crisp detail and no external upscaling
Up to 10 reference images for character consistency and complex edits
Pro mode: realistic skin, fabric, and lighting; Flex mode: bold, high-saturation punch
Literal prompt adherence that respects multi-step edit instructions
Async Flux 2 API on APIXO with unified 1K/2K pricing and webhook support
Production Use Cases for the Flux 2 API
How teams use the Flux 2 API to ship graphics faster without reshoots
Ecommerce Banners & Ads
Render exact taglines, slogans, and copy on hero banners with the Flux 2 API's industry-leading text accuracy.
Packaging & Print Design
Generate multi-line, punctuation-accurate text for posters, OOH, and packaging mockups directly via the Flux 2 API.
Character & Brand Consistency
Keep the same character or product across scenes by supplying up to 10 reference images to the Flux 2 API.
Product & Wardrobe Swaps
Replace products or outfits without reshoots. The Flux 2 API maintains consistent lighting and shadows.
High-Impact Social Creatives
Use Flux 2 API Pro for natural photorealism or Flex for a bold, saturated look — one API, two distinct aesthetics.
Flux 2 API Technical Specs
Resolution, speed, and output details for the Flux 2 API
Max Resolution
Processing Time
20-30s
Output Formats
Flux 2 API Developer Reviews
What production teams say about the Flux 2 API
“The text rendering on the Flux 2 API is unreal — slogans land pixel-perfect every time. Completely replaced our manual mockup workflow.”
John Smith
Senior Developer
“Having Pro and Flex in one Flux 2 API endpoint lets us serve two different creative styles without switching providers.”
Maria Johnson
Product Manager
“10-image reference support in the Flux 2 API keeps our characters consistent across entire ad campaigns. Nothing else comes close.”
Alex Lee
Tech Lead
Flux 2 API Known Limitations
Constraints to consider when integrating the Flux 2 API
Flex aesthetic can appear over-saturated ("Fluxy look") — use Pro for natural renders
Perfect symmetry (temples, earrings, mirrored facades) may still show minor artifacts
Prompt literalism can leave unintended elements unless explicitly removed in the request
Async workflow requires polling or webhook handling; typical jobs complete in 20–30 seconds
Start Generating with the Flux 2 API
Try the Flux 2 API in the playground above, or explore the documentation to integrate Pro and Flex modes into your project.