Ropewalk Generation Settings Explained: What Every Control Actually Does

Nano Banana 2 renders a 1K image for 270 coins — switch Resolution to 4K in the same panel and the price jumps to 605, because you're asking for roughly four times the pixels. That panel, tucked behind a small gear icon next to the Chat composer, is where you dial in exactly what a model produces before you hit send, and this guide walks through every control in it.

By Ropewalk Team. Tested on 2026-09-04 directly in the Chat composer on Nano Banana 2 and Google Veo 3.1 Fast.

The Quick Answer

Select a model in Chat, then click the gear icon that appears next to the composer to open Generation Settings. Universal controls (resolution, aspect ratio) sit at the top; model-specific controls (duration, audio, reference images) sit below, and they change what the model actually produces — the live cost badge is just a secondary readout. Settings save per model, so you only configure them once.

Step 1: Select a model to reveal the gear icon

The Generation Settings panel is per-model, so it only exists once you've picked one. Open Chat or Canvas, click the model selector at the bottom-left of the composer (it opens a tabbed list — All, Text, Image, Video, Audio, 3D), and choose a model. The moment the model loads into the composer, a small gear icon appears directly above it, at the top-left corner of the input box. Before you select a model, that space is empty — there's nothing to configure yet. On 2026-09-04 this was tested by selecting Nano Banana 2 from the Image tab; the gear icon rendered within about a second of the model attaching to the composer.

Step 2: Open the panel and read the header

Click the gear icon and a card expands above the composer. The header carries four things: the model's icon and name, a one-line description, a small media-type icon showing what it outputs (image, video, audio), and a live cost badge showing the coins one generation currently costs. For Nano Banana 2 at its default settings, that badge read 270 coins when confirmed live on 2026-09-04. This header is worth reading before you touch any control below it, because the badge updates instantly as you change settings — it's a running total, not a static price.

Step 3: Set the universal controls — resolution and aspect ratio

Every image and video model shares two controls: a quality/resolution select and an aspect ratio select. On Nano Banana 2, Resolution offers 1K, 2K, and 4K — each step up asks the model for more detail and a larger file, which is why 1K costs 270 coins against 605 for 4K, a 2.2× jump. Aspect Ratio defaults to "Match Input" (it mirrors whatever reference image you attach) but can be locked to a fixed ratio — 1:1, 2:3, 3:2 and several others were available in the dropdown when tested on 2026-09-04. Pick 4K when the output is the final asset (a print, a hero banner); pick 1K when you're iterating on a prompt and don't want to pay for pixels you'll throw away.

Step 4: Watch the cost badge react to your choice

Watching the cost badge react is the fastest way to understand what a setting actually does: change it and watch the header. Switching Resolution from 1K to 4K on Nano Banana 2 moved the badge from 270 to 605 coins in the same second (a 2.2× jump, confirmed 2026-09-04), no page reload, no confirmation click. The badge is a readout of the choice you just made, not the reason to make it — treat it as confirmation that a heavier setting was applied, not as the control's purpose. The same live-update behavior applies to every select in the panel, including the checkboxes for Google Image Search and Web Search grounding.

Step 5: Learn the model-specific controls on a video model

Switch the composer to a video model — Google Veo 3.1 Fast, tested here — and the panel reshapes around what video actually needs. Duration offers 5 or 10 seconds, and it roughly doubles the cost badge (3,000 coins for 5 seconds, 6,000 for 10), since you're asking for twice the footage. Audio offers "With audio" or "Without audio (cheaper)" — this is not just a discount toggle, it changes whether the rendered clip has a synchronized soundtrack at all, so pick it based on whether you're producing a silent b-roll clip or a finished piece with sound.

Step 6: Use the advanced controls when the default isn't enough

Below Duration and Audio, Veo 3.1 Fast exposes a Negative Prompt field (describe what to exclude from the output), a Seed field defaulting to 0 (set a specific number to reproduce a result, leave it at 0 for a fresh random result each time), and an "Enable prompt optimizer" checkbox that rewrites your prompt for the model before generating — on by default, confirmed 2026-09-04. Nano Banana 2 has an equivalent pair of grounding checkboxes instead: Google Image Search grounding pulls in web images as visual context, and Google Web Search grounding lets the model reference real-time facts like weather or scores. None of these are required reading for a first generation, but they're the difference between a lucky result and a repeatable one.

Step 7: Know what a locked tier looks like, and that settings persist

On an account without access to a given tier, selecting a gated option (a higher resolution or quality tier reserved for paid plans) opens an upgrade prompt instead of applying the change — that's expected behavior, not a bug, and the setting snaps back until you upgrade or pick something your plan covers. It's easy to mistake this for a broken dropdown the first time it happens, since nothing in the panel visually marks a tier as locked until you actually click it — the upgrade prompt is the only signal. One more thing worth knowing before you start generating, verified 2026-09-04: every setting in this panel is saved per model. Change Nano Banana 2's default to 4K once, and the next time you select Nano Banana 2 in any chat, it opens already set to 4K — you configure a model once, not every message.

FAQ

Why is there no gear icon next to my composer?
The gear icon only renders once a model is attached to the message. Open the model selector at the bottom-left of the composer and pick one — the icon appears immediately above the input box in under 1 second, confirmed 2026-09-04.

I picked a resolution and nothing happened except a popup — is that broken?
No — that's the premium gate. Higher quality tiers on some models are reserved for paid plans, and picking a locked one opens an upgrade prompt instead of applying the setting. Choose an available tier or upgrade to unlock it.

Do I need to reconfigure settings every time I open a new chat?
No. Generation Settings save per model, not per chat. Whatever you last set for a given model — resolution, duration, audio, grounding checkboxes — is already applied the next time you select that same model, in any chat.

Related on Ropewalk

New to generating images at all? Start with your first AI image before diving into Resolution and Aspect Ratio — it walks through the composer itself in under 10 minutes. If Step 5's Duration and Audio controls pulled you toward video, the AI video generation guide covers the model landscape beyond Veo 3.1 Fast, and the Kling 2.6 guide is a good next stop for a second video model whose settings panel is worth comparing against the one covered here.