GPT-5 Chat
The build that ran ChatGPT. Tuned for conversation, and answers straight away without thinking first.
Superseded by GPT-5.1 Chat →
Modalities
Context window
128,000 tokens, ≈ 96,000 words · about 380 pages
Max output
16,384 tokens, ≈ 12,000 words in a single answer
Knowledge cutoff
September 2024
Providers
Files you can attach
- ImagesJPG, PNG, GIF, WEBP
- DocumentsPDF, DOCX, XLSX, PPTX
- Text and codeTXT, MD, CSV, TSV, RPT, LOG, PY, TS, TSX, JS, JSX, CS, GO, JAVA, KT, SWIFT, CPP, C, H, PHP, RB, SQL, SH, PS1, HTML, CSS, SCSS, JSON, YAML, YML, XML, INI
Features
- StreamingSupported
- Function callingSupported
- Structured outputsSupported
- Fine-tuningNot supported