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Pick a model and ask anything. Attach images or PDFs, or use quick prompts below.
Pick a model and ask anything. Attach images or PDFs, or use quick prompts below.
Sign in to start chatting
Feed whole codebases or book-length docs, lean on Computer Use for UI tasks, and let Tool Search pick the right utility—without leaving the browser.
~1M context
Whole repos and long policies in one shot.
Computer Use
Native UI interaction for agent-style flows.
Tool Search
Finds the right tool without burning tokens.
Multimodal
Vision, PDFs, and optional web search.
Prompts.Skin chat studio supports these capabilities (varies by model)
See answers appear word by word—feels like a real chat.
Supported models can pull fresh info from the web when your question needs it.
Upload a photo for analysis, OCR, captions, or visual Q&A.
Drop in a PDF to summarize, translate, or rewrite key sections in chat.
Cross-file refactors and architecture Q&A.
Policies, filings, and knowledge bases.
Multi-step automation with tools.
Writing, code, and everyday chat.
Need another chat model?
Switch in the studio or visit other model pages
5.4 adds mega context and Computer Use; 5.5 is the prior general flagship—pick by task shape.
Yes—enable smart search in the studio.
GPT-5.4 · streaming · multimodal · browser-ready