Codex Desktop App

A lightning-fast AI-powered code editor built in Rust with GPU rendering. Features agentic coding, inline AI edits, multi-model support, and real-time collaboration.

Xiaomi's ultra-fast open-source LLM with 309B total parameters (15B active). Features Mixture-of-Experts architecture, Hybrid Sliding Window Attention, and Multi-Token Prediction. Supports 256K context window and achieves 150+ tokens per second inference speed. Excellent for reasoning, coding, and agentic workflows.

Arcee AI's 400 billion-parameter sparse Mixture of Experts model launched January 2026. Uses 256 experts with 4 active per token for 2-3x faster inference. Native 512K context window, excels in creative writing, reasoning, coding, and multi-turn agent workflows with structured outputs.

z.AI's flagship open-weight model released February 2026 with 744B total parameters (40B active). Designed for complex systems engineering and long-horizon agentic tasks. Integrates DeepSeek Sparse Attention for efficient long-context workloads. Strong in reasoning and code generation.

Qwen 3 Coder is Alibaba's open-source AI coding model optimized for agentic software engineering. It supports a native 256K token context window (extendable to 1M tokens), enabling it to process vast codebases in a single session. Qwen 3 Coder scored 44.3% on SWE-Bench Pro and powers the Qwen Code CLI agent for terminal-based development.

Cognition AIs autonomous AI software engineer released February 24, 2026. The major update features multi-agent operation capability where AI agents dispatch tasks to other agents, plus self-assessed confidence evaluation that asks for clarification when unsure.