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Changes

Getting started?

Check out the API overview and then consider starting from the Packs API or reviewing the reference implementation on Headshot starter

For LLMs, please direct to llms.txt.

Changes

  • 2026-04-29 Astria Claude Skills — open-sourced Claude Code skills for working with the Astria API (prompt writing, packs guide, navigation, partner-model integration, and more).
  • 2026-04-29 Video parameters are now first-class form fields: prompt[video_model], prompt[video_prompt], prompt[video_duration]. The pre-existing --video --video_model … --video_prompt "…" --duration N flags inside text continue to work — fully backward compatible. See API and Image2Video.
  • 2026-04-29 HappyHorse (Alibaba) video model added: happyhorse_720p (77¢/5s), happyhorse_1080p (132¢/5s), happyhorse_motion_control (154¢/10s). Supports image-to-video, reference-to-video, text-to-video, and video-edit motion control. Docs.
  • 2026-04-24 Kling 4K image-to-video model added (kling30_4k).
  • 2026-04-21 GPT Image 2 partner image model added with quality × resolution pricing (low/medium/high × 1K/2K/4K). Native mask support, OpenAI-direct routing.
  • 2026-04-13 Veo 3.1 Fast 4K and Veo 3.1 Lite video models added.
  • 2026-04-10 Seedance 2 video model added (480p / 720p / 1080p / 2K, plus fast variants). Supports text-to-video, reference-to-video, audio reference, first/last frame.
  • 2026-04-05 Grok 2 Image partner text-to-image model added (7.7¢/image).
  • 2026-04-04 GPT Image 1.5 partner image model added via WavespeedApi. Quality (low/medium/high) × size (1024×1024, 1024×1536, 1536×1024) pricing.
  • 2026-04-04 WAN 2.7 1080p image-to-video added.
  • 2026-04-02 WAN 2.7 and WAN 2.7 Pro partner image models added (3.3¢ and 8.25¢/image).
  • 2026-03-29 WAN 2.6 video model added.
  • 2026-03-27 LTX 2.3 video model added (720p/1080p).
  • 2026-03-14 Flux Klein 9B partner image model added (1.76¢/image, up to 3 reference images).
  • 2026-03-13 Recraft V4 and Recraft V4 Pro partner image models added (4.4¢ and 27.5¢/image).
  • 2026-02-24 Seedream 5.0 Lite partner image model added (4.4¢/image).
  • 2026-02-15 Kling 3 Pro and Kling 3 Motion Control video models added.
  • 2026-02-10 DreamActor M2 video model added (motion control).
  • 2026-02-07 Kling 3 video model added.
  • 2026-01-25 Kling 2.6 image-to-video and Wan Animate video models added via Fal.
  • 2026-01-08 P-Image Edit partner model added via Replicate (1.1¢/image).
  • 2026-01-07 Flux 2 Turbo partner image model added (0.8¢/MP for both input and output, supports up to 4 input images).
  • 2026-01-07 LTX 2 video model added.
  • 2025-12-28 Seedance v1.5 video model added (480p/720p, with audio variants).
  • 2025-12-03 Seedream 4.5 partner image model added (4.4¢/image, min 3686400 px).
  • 2025-11-29 Flux 2 Pro partner image model added with 1MP base + per-MP and per-reference image surcharges; supports 2K (4MP) output.
  • 2025-10-30 Added support for Super-resolution, --upscale_v4, film grain to Gemini Nano-Banana and Seedream.
  • 2025-10-27 Seedance Pro Fast provides a great combination of quality and cost. Docs
  • 2025-10-23 Hyperrealism partner image model added (4¢/image).
  • 2025-10-16 Veo 3.1 video model added (Vertex routing).
  • 2025-10-19 Added new upscaling --upscale_v4. See gallery
  • 2025-10-19 Aspect-ratio added to prompts
  • 2025-10-15 Riverflow 1 and Riverflow 1 Mini support great precision in image-editing, with benchmarks surpassing nano-banana. Additonally available in the Photoshop plugin.
  • 2025-10-08 Ovi video model added allowing talking Avatars with text and expressive voice.
  • 2025-09-25 Kling 2.5 and WAN 2.5 video models added.
  • 2025-09-18 Reve partner image model added (5¢/image).
  • 2025-09-15 Photoshop plugin for Nano Banana Gemini 2.5 and Seedream 4.0 is now available.
  • 2025-08-05 Veo 3 Fast video model added.
  • 2025-08-03 WAN 2.2 Fast video model added (480p/580p/720p).
  • 2025-07-30 WAN 2.2 video model added.
  • 2025-08-28 Seedream 4.0 has been integrated. Allows 4K image edits.
  • 2025-08-26 Nano Banana Gemini 2.5 has been integrated for consistent image editing.
  • 2025-08-05 Krea Flux1.dev added as an option for fine-tuning and inference, however, ee do currently do not recommend this.
  • 2025-06-22 Seedance video model added - higher quality than VEO3, and easier UX using the new video button.
  • 2025-06-09 Flux Kontext added
  • 2025-04-28 Updated Flux controlnets to the latest and added better default conditioning scales and end conditioning.
  • 2025-03-20 Image2Video available
  • 2025-03-02 Added auto_extend for tune so that only specific tunes can be extended.
  • 2025-02-18 Added video tutorial on how to create a pack and how to fine-tune
  • 2025-02-01 Multiperson for Flux in BETA
  • 2025-01-20 Flux Pro 1.1 + Ultra with fine-tuning support.
  • 2025-01-17 focus preset for training faces, products, and objects with Flux.
  • 2025-01-13 Added --remove_background for output images.
  • 2024-12-20 Outpainting syntax for extending image, creating more cinematic images or longer portraits with high quality faces.
  • 2024-12-15 portrait flux training preset is available for fine-tuning for better portrait results.
  • 2024-11-27 FaceID for Flux is now available.
  • 2024-11-27 Flux fine-tuning allows uploading .TXT file captions for multi concept fine-tuning.
  • 2024-11-24 Added film grain and color grading support for Flux Backend V0.
  • 2024-11-20 Virtual try-on with Flux is now in BETA.
  • 2024-11-15 Face inpainting with Flux and improved super-resolution
  • 2024-10-27 Added Theme API to allow users to easily create variation and write their own ideas while augmenting them and adding variation.
  • 2024-10-12 Added Image inspect API to 1) filter/warn about bad training images 2) detect characteristics of the training images for templating with characteristics.
  • 2024-10-09 Flux controlnet pose is available with Backend V0 but is still not recommended for production use.
  • 2024-09-26 Added prompts_callback for creating a tune with a pack
  • 2024-09-03 Flux fine-tuning docs and Flux API usage
  • 2024-07-29 Added Styles option for prompt
  • 2024-06-26 Tiled upscale V2 preserves identity and similarity while adding details and skin tones.
  • 2024-06-26 Added controlnet relight for SD15 with Backend V1 to allow better composition and blending for background replacement.
  • 2024-05-26 Added --improve_similarity 0.5 flag for Checkpoint/LoRA models which dramatically improves similarity/identity.
  • 2024-05-22 Improved SDXL FaceID
  • 2024-05-22 Added Controlnet Style for SDXL1
  • 2024-05-10 Added Controlnet Lineart for SDXL1
  • 2024-05-06 Interior design - improved "Segment Room" (segroom) controlnet to handle empty rooms.
  • 2024-05-05 Packs + Likes API - Control prompts from within Astria and experiment faster.
  • 2024-04-20 Interior design - Added "Segment Room" controlnet for Backend V1, and MLSD for SDXL to be used.
  • 2024-04-04 Added support for face-inpainting, hires-fix and tiled upscale for faceid on Backend V1.
  • 2024-04-04 Lightning schedulers for Backend V1 to support lightning models such as RealVis XL Lightning
  • 2024-04-04 V1: Lightning schedulers to support lightning models such as RealVis XL Lightning
  • 2024-03-27 Upgraded Themes to use Claude Opus and adjust for both SDXL and SD15 prompting.
  • 2024-03-20 Free Upscale tool
  • 2024-03-17 Controlnet composition support for Backend V1. Examples in the gallery
  • 2024-03-10 New Backend version v1 for inference - Higher quality, better samplers, faster inference, and more features.
  • 2024-03-05 TCD sampler gets better results than LCM in 4-8 steps for SDXL models and is available on the samplers dropdown in the Advanced settings of the prompt.
  • 2024-02-16 FaceID Portrait has better color balance and similarity and is well suited for portraits.
  • 2024-02-08 Deprecate prompt aspect-ratio. Use width and height instead for better results (backward compatability available).
  • 2024-02-08 Added --fix_bindi to remove dot on the forehead.
  • 2024-01-30 Deprecated prompt expansion.
  • 2024-01-25 Upscale only Allows you to upscale an existing image.
  • 2024-01-17 FaceID Preserve identity without fine-tuning.
  • 2024-01-03 Tiled upscale improved upscaling.
  • 2023-12-14 Prompt masking feature added - to support product shots and Masked Portraits
  • 2023-11-27 LCM (Latent Consistency Models) scheduler allows inference in 6 steps
  • 2023-10-29 Face-Swap feature added - uses training images to improve inference time similarity
  • 2023-10-22 Themes - Have ChatGPT create 10 prompts for you from a short 2-4 word theme description.