Anthropic Claude Haiku 4.5, the fastest and cheapest Claude model. Strong for classification, extraction, routing, and short-form chat. Use it for high-volume workflows where latency and cost matter more than top-end reasoning. If you need to search the web for information, please turn on the "Web Search" switch. Maximum context window (input and output combined): about 200,000 tokens. Maximum output per reply: about 64,000 tokens (model reasoning, if any, counts toward this limit). Maximum total upload size per request: 256MB (all files and message content combined). Accepted document formats: pdf, docx, xlsx, pptx, txt, csv (file content is provided to the model as extracted text). Accepted image formats: gif, jpeg, jpg, png, webp. Animated GIF images are analyzed using only the first frame. Maximum number of images: 100. When uploading more than 20 images, each side must be at most 2,000 pixels. Maximum size per image: 10MB (base64-encoded). Maximum total image size per message: 20MB (text and history share the same request size limit; uploads close to the limit may still be rejected). Image dimensions: 200 to 8,000 pixels per side. Output content formats: Text/Image This module supports continuous conversations. AI can make mistakes. Please verify important information.