# ChatGPT

Canonical page: https://fuser.studio/models/chatgpt

ChatGPT in Fuser runs OpenAI's GPT-6.1 Sol, GPT-6 Astra and Luna, GPT-5.x and GPT-4.1 as nodes that read reference images and write prompts and scripts.

## Specs

| Spec | Value |
| --- | --- |
| Versions | gpt-6.1-sol, gpt-6-astra, gpt-6-luna, gpt-6-sol, gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna, gpt-5.5, gpt-5.4, gpt-5.2, gpt-5.1, gpt-5, gpt-5-mini, gpt-5-nano, gpt-4.1, gpt-4.1-mini, gpt-4.1-nano, gpt-4o, gpt-4o-mini, o1, o3-mini, o3, o4-mini |
| Inputs | Prompt (text), System Prompt (text) |
| Output | text |

The thinking layer of your canvas: expand a one-line idea into a treatment, read a reference image, and hand clean prompts to every node downstream

Creator: OpenAI

[Draft the treatment](https://app.fuser.studio)

## How ChatGPT works

You choose a tier, set a voice once, attach a reference if you have one, and ask for a defined deliverable. The reply is plain text, ready to drop into the next node's prompt box.

### Pick a tier for the job

Choose fast and cheap for brainstorming, or a deeper tier for treatments, long scripts and dense image critique.

### Set the voice, attach references

Write your role, voice and output format once in the system prompt, then attach images you want it to read.

### Send and pipe the text on

Ask for a specific deliverable, then wire the plain-text response into image, video or audio nodes.

## What ChatGPT is good at

Fluent, organized writing that takes direction: it reads images, follows camera and lighting vocabulary, holds a brand voice, and spans fast drafting tiers to deep-reasoning ones.

### Reads your reference images

Attach a poster, layout or screenshot and get notes on type hierarchy, palette and composition. Say what to look at, and the answer stays on target. Images and text attach; video and audio do not.

### Moodboard to shot list

Hand it a rough idea or a reference frame and get a structured breakdown: shot number, framing, lens, lighting, action. Newer tiers follow camera and lighting vocabulary literally.

### Prompts for downstream nodes

Describe the look you want and receive prompts written for image and video models. Use a Luna, mini or nano tier to batch dozens of variations, then a Sol or Astra tier for the hero version.

### One brand voice, held steady

Lock tone in the system prompt and every line of copy follows it. The default route covers everyday drafting and structured output; an alternate route stands by as a fallback if the default is throttled.

## Made with ChatGPT

A gallery of creative instructions and what comes back: critiques, shot lists, briefs, voiceover and song direction, each written to be handed to a person or another node.

### Design critique that ends in a recreate-this-look prompt

### A logline unfolded into a parseable shot list

### Messy notes become a structured art direction brief

### Scriptwriting with a defined, strange voice

### Sonic direction and lyric draft in one pass

## What people build with ChatGPT

Art directors, designers, filmmakers, prompt writers and copywriters reach for it when a canvas needs a thinking layer that reads references and writes in a defined voice.

### Art directors building briefs

Paste in notes, mood references and constraints, and get a tidy brief with palette, materials and camera direction your whole team can work from.

### Designers wanting a second opinion

Attach a layout or UI screenshot and get a read on hierarchy, type and color. Use a deeper tier for dense critique, and a standard tier when you need counting or exact placement.

### Filmmakers breaking down scenes

Expand a logline or reference frame into shots with framing, lens and lighting, in a format that downstream nodes can parse.

### Prompt writers feeding other nodes

Describe the look in plain language and get clean, preamble-free prompts for image, video and audio models. Batch variations on a fast tier with last-message-only switched on.

### Copywriters guarding brand voice

Set the voice in the system prompt once, then draft taglines, product stories and social captions that sound like one author across every run.

## ChatGPT node questions

### Can I paste a whole screenplay or brand book into ChatGPT?

Yes. The default gpt-6.1-sol has a context window of about 1.05 million tokens, so a full screenplay or brand book fits with room for your instructions. Attach it as text or paste it into the prompt, then say exactly which parts to use, such as tone rules or character names. Ask for one scene or section per run when you need detailed output.

### Why doesn't Temperature change ChatGPT's output?

Fuser runs the GPT-6 and GPT-5.5/5.6 tiers, including the default gpt-6.1-sol, with reasoning on, and OpenAI doesn't accept Temperature or Top P while these models reason. Those settings are left out for these tiers, so steer variety with instructions instead, like "give five very different takes". Older tiers such as gpt-4.1 and gpt-4o still respond to Temperature.

### Which model tier should I pick for brainstorming versus a long script?

Use Luna, mini or nano tiers for quick brainstorming and batches of prompt variations, and Sol or Astra tiers for multi-step work like treatments with continuity, long scripts and dense image critique. As reported, Astra is the deepest, Sol is the near-flagship balance and Luna is fast and cheap. The default gpt-6.1-sol also handles very long pasted documents like a full brand book or screenplay, so there's no need to drop to an older tier like GPT-4.1 for length. Tier names and availability shift quickly, so treat the dropdown as a menu of speed, depth and cost.

### Can ChatGPT analyze a video or an audio clip?

No. Only text and images attach to this node, so it can't watch video or listen to audio. It can read still images, such as posters, layouts and screenshots, for composition, palette and type. It also can't generate images, audio or video itself, but it can write the prompts for nodes that do.

### How do I get clean prompts to feed an image or video node?

Ask for plain prose with no markdown or preamble, and request only the prompt rather than a prompt plus explanation. Define role and format in the system prompt, and set a stop delimiter like ### to end after one prompt. Turn on Last Message Only for independent one-shot calls so earlier turns don't bleed in.

### Who makes the models in this node, and how recent are they?

The models come from OpenAI. The lineup spans releases from May 2024 to September 2026, from GPT-4o and the o-series to the GPT-5.x and GPT-6 tiers. The node's default is gpt-6.1-sol.

## Try ChatGPT on Fuser

The thinking layer of your canvas: expand a one-line idea into a treatment, read a reference image, and hand clean prompts to every node downstream

[Draft the treatment](https://app.fuser.studio)

## Recipes using ChatGPT

- [Jean Phil Style AI Character Generator](https://fuser.studio/recipes/jean-phil-style-ai-character-generator.md): Enter a character idea—or leave SURPRISE ME—to create three character sheets and written profiles for social content.
- [Prompt Extractor](https://fuser.studio/recipes/prompt-extractor.md): Upload a reference image to receive a detailed, structured text prompt describing how to recreate its visual characteristics.
- [Render Like a Reference Style](https://fuser.studio/recipes/render-like-a-reference-style.md): Combine a source image with a render-style reference to create a generated image inspired by the reference’s materials, lighting, and atmosphere.
- [Last-minute Halloween Costume](https://fuser.studio/recipes/last-minute-halloween-costume.md): Upload clothing-item images to explore a last-minute Halloween costume mockup and receive a matching costume description.
- [Apply a pattern to any object](https://fuser.studio/recipes/apply-a-pattern-to-any-object.md): Combine an input pattern with an object image to create a realistic patterned image.
- [Dream Analysis](https://fuser.studio/recipes/dream-analysis.md): Enter a dream story to receive a Jungian analysis and a short animation based on its described imagery.

## Used for

- [Creative agencies](https://fuser.studio/solutions/industries/creative-agencies.md): Develop pitches, campaign assets and interactive client work in Fuser. Combine AI generation, editable design and reusable processes across your agency.
- [Architecture & interiors](https://fuser.studio/solutions/industries/architecture-interiors.md): Explore interior moods, material palettes and architectural concepts. Turn room references and sketches into clear client presentation boards in Fuser.
- [Fashion & apparel](https://fuser.studio/solutions/industries/fashion-apparel.md): Develop on-person garment imagery, editorial concepts and lookbook layouts. Bring collection references, virtual try-on and editable design together in Fuser.
- [Concepting & moodboards](https://fuser.studio/solutions/use-cases/concepting-moodboards.md): Turn a creative brief into distinct visual concepts, moodboards and pitch layouts. Explore references, imagery and motion together in Fuser.
- [Social content](https://fuser.studio/solutions/use-cases/social-content.md): Create social graphics, carousel artwork and short videos with a recognizable brand style. Keep copy editable and recurring content easier to produce in Fuser.

## Related models

- [Groq Chat](https://fuser.studio/models/groq-chat.md)
- [OpenRouter Chat](https://fuser.studio/models/openrouter-chat.md)
- [Perplexity Chat](https://fuser.studio/models/perplexity-chat.md)
- [Google Gemini Chat](https://fuser.studio/models/google-gemini-chat.md)
- [Mistral Chat](https://fuser.studio/models/mistral-chat.md)
- [Claude Chat](https://fuser.studio/models/claude-chat.md)

Node reference: [ChatGPT docs](https://docs.fuser.studio/docs/nodes/llm/chatgpt.md)

## More articles

- [How to Chain AI Models into One Creative Workflow](https://fuser.studio/articles/chain-ai-models-workflow.md)