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By Anthropic · Chat model Available now

GPT-5.5

The everyday all-rounder for marketers, creators and consultants. Scripts, blog posts, ad copy, research and code, all in one thread.

AgenticCodingReasoning
Quick facts
Made byAnthropic
HandlesLong transcripts and docs
SpeedFast
Best forAgentic coding & reasoning
In HiggsChatIncluded

[ Overview ]

Meet GPT-5.5.

GPT-5.5 is OpenAI's flagship all-rounder, and it is the model most people should start with. If you write, market, build or advise for a living, it handles the bulk of the day: drafting, editing, thinking out loud and coding, without you having to decide what kind of task it is first.

Ask it for a YouTube script and five title options, a client blog post from a rough brief, a week of social captions in your own voice, three ad headlines to test, or a research summary you can hand to a client. Then keep going in the same thread and generate the thumbnail or the video clip to go with it.

GPT-5.5 is the sensible default: quick enough to iterate with, sharp enough for real work. When a question needs more thinking than the day usually demands, hand the same thread to GPT-5.5 Pro. Either way it is included with HiggsChat, along with every other leading model and image and video generation, on one subscription.

At a glance
SpeedFast responses that keep pace with you.
Best forAgentic coding & reasoning.
HandlesHolds 500K tokens in working memory.
Switch anytimeHand the thread to any other model.

[ Key features ]

What it's great at.

01

Thinks it through

Works through the brief before it answers, so you edit less.

02

Writes in your voice

Scripts, captions, emails and blog drafts that sound like you.

03

Keeps the thread

Hand the same conversation to any other model without repeating yourself.

04

Turns words into visuals

Take the script you just wrote straight into an image or a video.

05

Handles the long stuff

Paste in a full transcript or brief and it stays in view.

06

Always current

The newest version is wired up the day it ships. No upgrade to buy.

[ Use cases ]

Built for real work.

Content & copy

Posts, emails and scripts in your brand voice.

Software

Scaffold features, write tests, review PRs.

Data & analysis

Explain datasets, write formulas and SQL.

Learning

Break down hard concepts with clear answers.

Research

Summarize long PDFs into clear takeaways.

Support

Draft replies, macros and help articles.

[ Example prompts ]

Steal these to get started.

Copy any prompt and paste it straight into GPT-5.5 inside HiggsChat.

WRITINGCopy

“Rewrite this to be 30% shorter, keep the key facts, confident but warm tone: [paste text]”

CODINGCopy

“Here is a function and the error it throws. Explain the root cause in two sentences, then give a corrected version: [paste code]”

STRATEGYCopy

“Act as a skeptical investor. List the three weakest assumptions in this pitch, with a sharper question for each: [paste]”

LEARNINGCopy

“Explain how vector embeddings work to a smart 12-year-old, one everyday analogy, no jargon.”

[ How to use it ]

GPT-5.5 inside HiggsChat.

1

Open a new chat

Hit New Chat in your HiggsChat sidebar. No API key or Anthropic account needed.

2

Select Claude Opus 4.8

Pick Claude Opus 4.8 from the model selector at the top. Switch any time.

3

Prompt & switch

Start working, and hand the thread to any other model whenever you want a second take.

[ Pricing ]

One subscription. Every AI model.

Chat, image, and video models from OpenAI, Anthropic, Google, SpaceXAI, and more, all powered by simple credits. No free plan; free signup lets you explore everything first.

Starter

$15/mo
Get Starter
4,000 credits / month
Access to all chat, image & video models
1 user
Most Popular

Pro

$29/mo
Get Pro
8,000 credits / month
Access to all chat, image & video models
1 user

Max

$59/mo
Get Max
16,000 credits / month
Access to all chat, image & video models
1 user

Team

$99/mo
Get Team
27,000 shared credits / month

Everything in Max, plus:

Unlimited users
Admin assigns & caps credits per member

1 credit = a slice of real cost

You only pay for what a model actually costs, nothing more.

One shared balance

Chat, images and video all draw from the same credits.

Never get stuck

Run out? Buy add-on credit packs anytime.

[ FAQ ]

GPT-5.5, answered.

Do I need a separate Anthropic account?+
No. Claude Opus 4.8 is fully built into HiggsChat. There are no API keys, no separate login and no usage metering to track. Just open a chat and start.
Can I switch from Claude Opus 4.8 to another model mid-conversation?+
Yes. That is the core benefit of HiggsChat. You can hand any thread from Claude Opus 4.8 to another model and keep the full context, so you can compare answers instantly.
Is my data used to train models?+
No. Auto reads your prompt and routes it to the model best suited to it, whether that is writing, an image or a video. Pick a specific model yourself whenever you want it.
Can I paste in a long document or transcript?+
Yes. Drop in a full transcript, brief or thread and keep working without cutting it into pieces.
How much does Claude Opus 4.8 cost?+
Every plan includes it and every other model, metered by shared credits. Starter is $15 a month for 4,000 credits and Pro is $29 a month for 8,000. Signing up costs nothing.
A

Try GPT-5.5, and 60 more.

One login to the entire frontier. Start free, no credit card required.

GPT-5.5
gpt-5-5
OpenAI
O
linear-gradient(135deg,#10a37f,#0d7a5f)
16,163,127
1.05M tokens
Fast
Everyday content and analysis
The everyday all-rounder for marketers, creators and consultants. Scripts, blog posts, ad copy, research and code, all in one thread.
Content
Everyday
All-rounder
Try GPT-5.5
https://app.higgschat.com/signup
See pricing
GPT-5.5: Your Everyday AI for Content - HiggsChat
GPT-5.5 handles the daily grind: scripts, blog posts, ad copy, research and code in one thread. Included with HiggsChat from $15 a month.

GPT-5.5 is OpenAI's flagship all-rounder, and it is the model most people should start with. If you write, market, build or advise for a living, it handles the bulk of the day: drafting, editing, thinking out loud and coding, without you having to decide what kind of task it is first.

Ask it for a YouTube script and five title options, a client blog post from a rough brief, a week of social captions in your own voice, three ad headlines to test, or a research summary you can hand to a client. Then keep going in the same thread and generate the thumbnail or the video clip to go with it.

GPT-5.5 is the sensible default: quick enough to iterate with, sharp enough for real work. When a question needs more thinking than the day usually demands, hand the same thread to GPT-5.5 Pro. Either way it is included with HiggsChat, along with every other leading model and image and video generation, on one subscription.

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