The best llms in 2026

Open‑source to hosted, the leaders span fast APIs, deep reasoning, and flexible deployment. anchors production apps with multimodal models, agents, and realtime voice. excels at long‑context coding, tool use via MCP, and citation‑backed research. For Google‑aligned stacks, offers speedy, cost‑efficient multimodality, generous context, and tight Workspace/Vertex integrations—popular for RAG, PDF parsing, and mobile assistants.