GPT 5.5 — AI Text Generator
GPT 5.5 is available on Artifio.ai as part of our unified AI workspace. Powered by OpenAI. Starting at about $0.050 per generation.
About GPT 5.5
GPT-5.5 is a large language model OpenAI released on April 23, 2026, internally codenamed Spud, arriving just seven weeks after GPT-5.4. The Thinking and Pro variants rolled out first to paid ChatGPT plans and Codex, the API followed a day later, and GPT-5.5 Instant became the default free-tier ChatGPT model on May 5. OpenAI framed the release around agentic coding, conceptual clarity, scientific research ability, and accuracy in knowledge work, and co-founder Greg Brockman described it to TechCrunch as a faster, sharper thinker for fewer tokens than GPT-5.4.
Artifio runs GPT-5.5 as a text model beside 100+ others, paid per generation from a single wallet.
Features
- 1,050,000-token context window with up to 128,000 output tokens.
- Knowledge cutoff of December 1, 2025, three months fresher than GPT-5.4's.
- Full API tool suite: web search, file search, image generation, code interpreter, computer use, and MCP.
- Reasoning effort selectable from none through xhigh, with streaming, function calling, and structured outputs.
- Variant family spans Thinking, Pro, free-tier Instant, and a limited-preview GPT-5.5-Cyber for security work.
What people use it for
- Agentic coding sessions, the release's headline workload in both ChatGPT and Codex.
- Scientific and technical research assistance, where OpenAI claims meaningful workflow gains.
- Knowledge work such as document, data, and spreadsheet tasks carried across tools until finished.
- Long-context analysis over the million-token window.
Reported strengths
- Benchmark results recorded on Wikipedia include 82.7% on Terminal-Bench 2.0 and 51.7% on FrontierMath tiers 1-3, with 35.4% on tier 4.
- Token efficiency improved over GPT-5.4, reaching answers with less reasoning output.
- OpenAI reported it scoring above competing frontier models from Google and Anthropic at release.
- Free-tier users got a variant within two weeks of launch, unusually fast for an OpenAI frontier release.
Reported limitations
- The model shipped with an odd tic: an unprompted tendency to mention goblins and gremlins, traced to training rewards for a since-retired Nerdy persona.
- API list pricing is roughly double GPT-5.4's per token, so the efficiency gains have to offset a higher rate.
GPT 5.5 FAQ
What is GPT 5.5?
GPT 5.5 is an AI model (prompt to text) available on Artifio.ai through OpenAI. You can run it in our workspace from a single shared wallet and download your outputs.
How much does GPT 5.5 cost on Artifio?
GPT 5.5 starts at about $0.050 per generation on Artifio.ai. The exact cost is shown in the workspace before you confirm and can vary with the options you select.
How do I use GPT 5.5 on Artifio?
Click Generate Now to open the workspace at /create/gpt-5-5. Fill in the form fields, review the live cost estimate, and run your generation.
What kind of outputs does GPT 5.5 produce?
GPT 5.5 is configured for prompt to text workflows in the text category. See the technical parameters below for supported inputs and options.
Can I try GPT 5.5 for free?
Sign up free, top up your wallet from $5, and you can run GPT 5.5 pay-as-you-go without a separate subscription for this model.
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Try GPT 5.5 on Artifio
Open the workspace with this model pre-selected. Your prompt and settings stay in the browser until you generate.
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