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Why Did My AI Tool Use a Different Model Than I Expected? The Defaults That Surprise People

You asked for Veo and got Veo Fast, picked Nano Banana and got Nano Banana 2, or a Kling prompt refused to run without an image. What each 8frame tool opens on, which defaults change the price or the result, and how to check before you generate.

When a result does not look like the model you had in mind, the usual reason is that each tool on 8frame opens on one model of its family, and that model is not always the one people expect. The Veo tool opens on Veo 3.1 Fast, not Standard. Nano Banana opens on Nano Banana 2, not Pro. The Kling tool opens on Kling v3 Standard, which needs a start image. None of this changes on its own: every new node starts from its tool's default, and the model picker on the node shows which one it is.

TL;DR

What each tool opens on

Tool on the canvas Opens on Credits as it opens What people expect instead
Veo Veo 3.1 Fast, 8 s, sound on 168 Veo 3.1 Standard (448) or Lite (54)
Kling Kling v3 Standard, 5 s, sound on 86 A text-to-video Kling; v3 needs a start image
Wan Wan 3.0, 5 s, 1080p 95 480p (24) for drafts
Seedance Seedance 2.5, 5 s, 720p 157 Seedance 2.0 (108)
Gemini Omni Flash 5 s 85 8 s (135)
Pruna Video p-video, 5 s, 720p 14 p-video Draft (4)
Hailuo Hailuo H3, 5 s, 2K 88
Grok Imagine 5 s, 720p 48 480p (34)
Creatify Boreal 5 s, 720p 7
Nano Banana (image) Nano Banana 2, 1K 11 Nano Banana Pro (21)
GPT Image (image) GPT Image 2, high quality 29 square, 20 other shapes Low (2) or medium (8 / 6)
Upscale (image) Topaz from 11 Clarity (13)

The full table, with shape and sound defaults, is in AI video default settings by model.

The five surprises that matter

1. "Veo" means Veo 3.1 Fast on the canvas

The Veo tool starts on Veo 3.1 Fast at 8 seconds with sound: 168 credits. If you wanted Google's top tier, switch to Standard (448); for cheap drafts, Lite (54, 720p). Through the MCP connector it is the other way round: a Veo request without a model is Standard, 448. If you generate from both places, check which tier each one used.

2. Kling v3 will not run from text alone

The Kling tool opens on Kling v3 Standard, which on 8frame is image-to-video only. A prompt with no start image will not generate on it. For text-only Kling, switch to Kling 2.6 Pro: 95 credits for 5 seconds with sound, 47 silent. Kling O3 needs a start image too. The image rules are in Kling image-to-video upload requirements.

3. Nano Banana's picker labels

The Nano Banana node offers "2", "Pro" and "Standard". It opens on "2", Nano Banana 2 (11 credits at 1K). "Pro" is Nano Banana Pro (21 at 1K and 2K, 42 at 4K). "Standard" is not a middle tier: it is Nano Banana Classic, the oldest of the three, at 6. Through the MCP connector the Nano Banana tool is always Classic.

4. Defaults that pick the expensive setting

Two image and video defaults sit at the top of their price range:

Neither is wrong for a final, but both cost more than a draft needs. More in why are my credits going so fast.

5. Clips does not let you choose the model

Clips writes the script and renders the video on Seedance 2.5 at 720p; there is no model picker. What you choose is the length (5, 10, 15, 20 or 30 seconds) and the shape (Auto, 9:16, 1:1 or 16:9). It opens on the Brand ad preset at 15 seconds, which costs 500 credits; a 5-second clip is 200. If you need a different model, use Studio or the canvas.

How to check before you generate

  1. Read the model name on the node or in Studio.
  2. Check the credit price shown before you generate. A number far above what you expected usually means a high default (1080p, high quality, Standard tier).
  3. Change the model first, then the settings. Lengths, resolutions and sound options differ by model, so set them after switching.
  4. On a new node, check again. A new node starts from the tool's default, not from the settings of the node next to it.

FAQ

Why is my Veo video not Veo 3.1 Standard? The Veo tool on the canvas opens on Veo 3.1 Fast. Switch the model to Standard on the node; it costs 448 credits for 8 seconds with sound, against 168 for Fast.

Why won't my Kling prompt generate without an image? The Kling tool opens on Kling v3 Standard, which only does image-to-video on 8frame. Add a start image, or switch to Kling 2.6 Pro for text-to-video.

What is "Standard" in the Nano Banana picker? Nano Banana Classic, the oldest model of the three, at 6 credits. The default is Nano Banana 2; Pro is a separate option.

Which model does Clips use? Seedance 2.5 at 720p, for every clip. You choose the length and shape, not the model.

Does 8frame switch models without telling me? A node runs the model shown on it. Some models switch mode based on what you attach (a reference video on Seedance, for example, moves it to a higher price tier), but the usual surprise is simply the default a tool opens on.

Sources


Try it without signing up: the 8frame canvas opens on a real board. The canvas is free and unlimited; generation is paid from $19/month.

Written with AI assistance. Corrections are noted on the page. Editorial policy

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