GPT 5.5 — OpenAI Frontier Model on Craze

About GPT-5.5

GPT 5.5 is OpenAI's latest frontier model — built to think harder and longer about the kind of work that doesn't fit in a one-shot answer. Hand it a tangled refactor, a multi-page research question, or a long-form draft and it stays with the problem instead of guessing in a single pass.

Inside Craze, GPT 5.5 is the default option you'd reach for when the quality of the answer matters more than the latency. It plugs into the same connectors, agents, and multiplayer surface as every other model in the catalog — so you can let it plan, hand the routine steps to a faster model, and bring teammates into the same conversation when you need a second pair of eyes.

Pair GPT 5.5 with Claude when you want to cross-check a careful answer, or run it solo when one strong model is enough. Either way you don't manage an OpenAI account, API key, or rate limits — Craze handles all of it.

What GPT-5.5 is good at

Deep, multi-step reasoning

GPT 5.5 plans before it speaks. It handles long chains of logic — research questions, code refactors, agent plans — without losing the thread halfway through.

Strong code generation and review

Writes, refactors, and reviews code across mainstream languages. Useful as the model behind a pull-request agent or a "explain this codebase" workflow.

Long-form writing and editing

Drafts essays, briefs, proposals, and edits with a steady voice. Holds tone and structure over long outputs better than smaller models.

Tool use, MCP, and structured output

Calls functions, hits APIs, returns strict JSON, and works with MCP servers — so agents built on Craze can read context and take real action across your connected apps.

Vision and document understanding

Reads screenshots, charts, PDFs, and diagrams alongside your text — useful for design review, data sanity checks, and document Q&A.

Use GPT-5.5 on Craze

On Craze, GPT-5.5 shows up wherever you'd reach for an AI model — the chat composer, the model picker, every connected workflow. Pick it once and your conversation, drafts, and agents follow you across the rest of the workspace.

Build AI agents on top of GPT-5.5 that hand off context to teammates, pull from the apps you've already connected, and keep working in the background while you focus on something else.

Or hand GPT-5.5 a routine task and switch to another model when the next step needs different strengths — you can mix and match models in the same conversation without losing context.

When to choose GPT-5.5

Reach for GPT 5.5 when you want OpenAI's frontier reasoning — the hardest research questions, deep code refactors, careful long-form drafting, or agents that have to plan several moves ahead. Use Claude Opus 4.7 when you'd rather get Anthropic's flavour of the same lane; use Sonnet 4.6 or Haiku 4.5 when you'd accept a smaller answer in exchange for speed and lower cost.

Common questions about GPT-5.5

What is GPT 5.5?

GPT 5.5 is OpenAI's latest frontier model, built for deep reasoning, complex code, long-form writing, and agentic multi-step work. On Craze you pick it from the model selector or let agents route work to it automatically.
How much does GPT 5.5 cost on Craze?

GPT 5.5 is included in every paid Craze plan — you don't pay per token. One Craze membership covers GPT 5.5 alongside Claude Opus, Sonnet, Haiku, and every other model in the catalog.
What is GPT 5.5 best at?

GPT 5.5 is the model to reach for when the work needs real thinking — multi-step research, deep code refactors, careful long-form drafting, or agents that have to plan ahead. It trades a bit of speed and cost for stronger reasoning.
Can GPT 5.5 use tools and connect to my apps on Craze?

Yes. GPT 5.5 supports tool calling, MCP servers, and structured outputs. Inside Craze it plugs into every connector you've added — Gmail, Calendar, Notion, Slack, Linear, GitHub, and more — so the model can both read context and take action.
When should I pick GPT 5.5 over Claude?

Pick GPT 5.5 when the answer's quality matters more than the latency — hardest reasoning, complex agentic plans, polished long-form writing. Reach for Claude Opus 4.7 in the same lane when you want a second opinion; reach for Sonnet 4.6 or Haiku 4.5 when you want a faster, cheaper response.
Do I need an OpenAI API key to use GPT 5.5 on Craze?

No. Craze handles authentication, billing, and rate limits for you. Sign up and GPT 5.5 is one click away in chat, agents, and anywhere the model picker shows up.

Documentation & links

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Last updated: May 15, 2026