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MeiGen supports multiple AI models for image and video generation. Use the comparison table below to pick one, then scroll to its section for detailed specs.
Availability and the current default come from List Models. Use a model only when it appears in the active list, and read is_default instead of assuming a permanent default. Prices below describe the listed configuration; confirm the displayed total before submitting.

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Quick Comparison

✓ = available on the iOS/Android app and web. Web only = browser only for now. GPT image 1.5 was retired on 2026-04-22 (replaced by GPT Image 2.0). Midjourney V7 was replaced by V8.1 on 2026-05-09. Happyhorse 1.1 was retired on 2026-07-31. Seedream 5.0 Lite was retired on 2026-08-13 (Seedream 5.0 Pro and Seedream 4.5 remain available). Z Image Turbo was retired on 2026-08-21.

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Image Models

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GPT Image 2.5

For precise generation and editing. Select one public model ID and choose how to balance quality and speed. Credits per image: Sunburst and Flare cost the same at the same resolution and quality. Adding reference images or changing the aspect ratio does not add credits. Higher quality can take longer; there is no fixed completion-time guarantee. When selected, the configured starting settings are 2K Standard (6 credits) on desktop and 1K Standard (4 credits) on mobile, with Sunburst. Saved settings may differ. Both variants accept text-only prompts and reference images. For an edit, specify what to change and what to preserve. For a person, product, or style reference, explain the role of each image. Attaching a reference does not automatically switch variants. You can explicitly request a transparent background in your prompt. Whether the result has an alpha channel depends on intent detection and the generated output; use Cutout to remove the background from an existing image. GPT Image 2.5 uses welcome or purchased credits; daily free credits do not apply. 4K is paid-only. See API parameters for quality and modelVariant.

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GPT Image 2.0

Credit matrix: All resolutions consume welcome or purchased credits (premium model — daily free credits don’t apply). 4K is paid-only. Aspect ratio does not affect pricing — credits depend only on resolution × quality. GPT Image 2 remains a separate model with its original three quality levels and prices. It supports instruction following, in-image text, and multi-element scenes. Its medium and high settings are not interchangeable with the same labels on 2.5. You can explicitly request a transparent background in your prompt. Whether the result has an alpha channel depends on intent detection and the generated output. Use Cutout when you need to remove the background from an existing image.
Stricter moderation: prompts involving real people, celebrities, brand logos, or violent/adult content may be rejected. Rephrase to drop specific names or try a different model.

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Nanobanana 2

The most affordable Gemini model with the widest range of aspect ratios, including ultra-wide (8:1) and ultra-tall (1:8) options. Good for quick iterations and exploration. 4K is paid-only.
Content moderation: Nanobanana 2 has stricter content filtering than other models. Prompts that mention celebrities, brand names, real people, or face-swap scenarios are more likely to be rejected. If your prompt is flagged, try rephrasing to avoid specific names or use a different model.

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Nanobanana Pro

The premium Gemini model with higher image quality. Better at complex scenes, fine details, and text rendering. Choose this when quality matters more than cost. 4K is paid-only.

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Seedream 5.0 Pro

ByteDance’s flagship Seedream tier. Accepts up to 10 reference images, making it a strong pick for multi-subject composition and for keeping a character consistent across images. 2K is paid-only.

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Seedream 4.5

The previous generation Seedream model. Still produces solid results, particularly good for product photography and marketing visuals. 4K is paid-only.

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Grok Imagine Image 2.0

Credit matrix: xAI’s Grok Imagine 2.0 image model. Supports both text-to-image and image-to-image (up to 3 reference images for editing or guided generation), with a focus on precise editing, infographics, ads, and UI/UX mockups. A premium model — daily free credits don’t apply.

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Midjourney V8.1

Midjourney’s photorealistic flagship. Returns 4 candidate images per generation (charged once). Choose 2K for native high-resolution output, High quality for finer detail at no extra cost. 2K is paid-only. Features:
  • Content and style reference modes
  • Advanced parameters (stylize, chaos, raw, etc.) for fine-tuning the output
  • Auto-translates non-English prompts to English
  • Native 2K output toggle
  • Quality (Standard / High) toggle

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Flux 2 Klein

A base model from Black Forest Labs, suited to everyday general-purpose creation.

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Agnes Image 2.1 Flash

The cheapest model on MeiGen at 1 credit per image, and the only basic-tier image model that accepts a reference image. Good for high-volume drafting and low-cost image-to-image iteration.

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Video Models

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Seedance 2.5

Seedance 2.5 is the long-duration Seedance model on MeiGen. It supports text-to-video, first/last-frame image-to-video, up to 30 content-reference images, and reference-video continuation. Content images and the optional reference video can be used together and are counted separately. Frame references and reference-video continuation use adaptive ratio so the output follows the input media; text-to-video and content-reference requests can use an explicit supported ratio.

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Pricing

Direct generation bills only the selected output duration. With a reference video: billable seconds = max(reference video duration + selected output duration, ceil(selected output duration × 5 / 3)) The minimum-billable floor is 7 seconds for a 4-second output, 9 for 5 seconds, and 50 for 30 seconds. Output length is always the selected 4–30 seconds; the billing floor does not lengthen the generated clip.
If generation fails, the full credit amount is automatically refunded.

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Seedance 2.0

Seedance 2.0 is the three-tier Seedance option. It supports text-to-video, image-to-video (first/last frame or content reference), and video continuation. All outputs include AI-generated audio. The adaptive aspect ratio automatically matches the reference image/video dimensions. Both Seedance 2.0 and 2.5 support character assets: save a character once, then reference it with @ in your prompt to keep the same subject across shots. Two reference-image modes: first/last frame (default, up to 2 images) sets the opening and/or closing frame; content reference guides style or subject instead of fixing a frame position and accepts up to 9 images. Content images and the optional reference video can be used together and are counted separately. Three tiers, picked from the tier switch (Mini / Fast / Pro) in the video sidebar. Same Seedance 2.0 model, same params, just different rendering quality and price:
  • Mini (default): cheapest and most lightweight; 480p / 720p
  • Fast: quick turnaround at 480p / 720p
  • Pro: higher fidelity, with native 1080p and 4K rendering (4K is direct-generation only)
All three tiers support reference-video continuation — continuation output tops out at 1080p even on Pro.

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Pricing

Per-second. Rate depends on tier (Mini / Fast / Pro) × whether a reference video is uploaded: Mini and Fast only support 480p / 720p. Pro adds native 1080p and 4K for direct generation; with a reference video, Pro is limited to 720p / 1080p (no 480p rate). With-reference-video billing rule (all tiers): billable seconds = max(reference video duration + your selected duration, min billable) Output length is always your selected duration (4–15), independent of the reference video’s length.

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Examples

If generation fails, the full credit amount is automatically refunded — including all per-second charges.

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Grok Video 1.5

xAI’s image-to-video model. A starting (first-frame) image is required — pure text-to-video is not supported. The output aspect ratio always follows your input image, and AI-generated audio is included.

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Pricing

Examples:
If generation fails, the full credit amount is automatically refunded.

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Veo 3.1

Google’s video generation model. Creates short clips with AI-generated audio synced to the prompt. Auto aspect ratio infers the output ratio from your prompt or reference image. Pick this for premium visual quality with native audio; for longer durations (>8s), use Seedance 2.5. Two tiers — pick one from the tier switch (Fast / Pro) in the video sidebar. Same Veo 3.1 model, same params, just different rendering quality and price:
  • Fast (default) — quick turnaround, balanced quality
  • Pro — higher fidelity, longer rendering time

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Pricing

Per generation. Price depends on tier (Fast / Pro) × duration (4 / 6 / 8s). All resolutions (720p / 1080p / 4k) share the same price — picking a higher resolution costs no extra credits. Two caveats: 4k requires a paid account, and it takes noticeably longer to render.

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Examples

If generation fails, the full credit amount is automatically refunded.

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Agnes Video 2.5 Flash

The only basic-tier video model — and the only one your daily free credits cover. Supports text-to-video and single-image first-frame image-to-video at a fixed 5 seconds / 720p. For longer clips, use Seedance 2.5; for higher resolutions, use Seedance 2.0 Pro or Veo 3.1.
Image-to-video ignores the requested aspect ratio — the output follows the first frame. Images you generated or uploaded on MeiGen are cropped to your selected ratio at the CDN edge first, so the result matches your choice. Images from anywhere else (API callers may pass any public URL or data: base64) are used as-is, and the output ratio follows that image.

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Pricing

Duration is fixed at 5 seconds, so every generation costs 10 credits.
If generation fails, the full credit amount is automatically refunded.

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Known Limitations

This model is more sensitive to content involving real people, celebrities, brand logos, and face-swap requests. Prompts that work on other models may be rejected here. If you get a content violation error, rephrase your prompt to remove specific names or try a different model.
This base model generates images from text only. The reference image upload section is hidden while it is selected. If you need reference images, switch to another model.
Midjourney V8.1 accepts only 1 reference image, while other image models accept between 3 and 16. In exchange it offers more control over how the reference is used (content vs. style reference).
Unlike other models that return a single image, Midjourney V8.1 returns 4 candidate images per generation. All candidates are saved and can be browsed in the image detail dialog. You are only charged once (15 credits at 1K / 20 credits at 2K) for all 4 images.
GPT Image 2.0 applies stricter moderation than other models to real people, celebrities, brand logos, and adult/violent content. Rephrase your prompt to drop specific names, or try a different model.
Seedance bills per second, not per image — and uploading a reference video uses a separate rate table with a minimum-billable floor. See the Seedance 2.0 section above for the full rates and formula.
Seedance 2.5 has one quality level and supports 480p / 720p. Do not send tier; use Seedance 2.0 Pro when you specifically need 1080p or 4K.
The Mini tier (the default) is the lightweight option, capped at 720p. For 1080p or 4K output, switch to Pro — note that reference-video continuation on Pro tops out at 1080p (4K needs direct generation with no reference video).
Grok Video 1.5 is image-to-video only — you must upload a starting (first-frame) image. Pure text-to-video is not supported. The output aspect ratio follows your input image. If you want text-to-video, use Seedance 2.5, Seedance 2.0, or Veo 3.1.
Grok Video 1.5 outputs at 480p or 720p only. For higher resolutions (1080p / 4k), use Seedance 2.0 or Veo 3.1.
Veo 3.1 only supports 16:9 / 9:16 (plus Auto). Square (1:1), 4:3 / 3:4 portrait, and other ratios are not available. For wider ratio support, use Seedance 2.5 or Seedance 2.0.
720p / 1080p / 4k all cost the same on Veo 3.1, so 4k costs no extra credits. Two things to know: 4k is locked for free accounts (selecting it opens the upgrade dialog), and rendering takes longer — 4k typically takes 6–8 minutes versus 1–4 minutes for 720p / 1080p. The same 4k lock applies to Seedance 2.0 Pro.