Code Models

Kiro is an agentic AI coding platform from AWS that launched internationally on May 7, 2026, as the official successor to Amazon Q Developer. It introduces a 'spec-driven development' methodology requiring formal requirements, design, and task artifacts before code generation, using an SMT solver to mathematically verify specifications for logical contradictions. Built on Code OSS and integrated with Amazon Bedrock.

Devin Desktop (formerly Windsurf IDE, rebranded June 2, 2026) is an autonomous AI coding agent platform by Cognition AI. It functions as an 'Agent Command Center' with a Kanban-style interface for managing multiple parallel AI agents. Built on the proprietary SWE-1.6 model, it supports autonomous task delegation, multi-repo workflows, and the open Agent Client Protocol (ACP) for third-party agent integration.

Windsurf is an AI-native IDE built on VS Code by Codeium, featuring the Cascade agentic system for autonomous multi-file editing, terminal integration, and codebase-aware task execution. In 2026 it evolved into Devin Desktop, a unified command center for managing local and cloud-based coding agents. It supports multiple frontier models including Claude, GPT-5.4, and Codeium's proprietary SWE-1.5.

Claude Code is Anthropic's agentic coding tool that operates within the terminal, IDEs (VS Code, JetBrains), and a dedicated desktop application. Generally released May 2025 and actively maintained through June 2026, it understands entire codebases, executes multi-file edits, manages git workflows, and supports sub-agent spawning (up to 5 levels deep) via natural language commands.

Kimi K2.7-Code is an open-weight coding-focused language model released by Moonshot AI on June 12, 2026, under a Modified MIT license. It is optimized for agentic coding workflows with 30% lower reasoning-token usage than its predecessor K2.6, and serves as the engine behind the Kimi Code terminal-first coding agent.

Flint is an open-weight 40B mixture-of-experts coding model from Recursive AI, announced October 21, 2026 under Apache 2.0 license. It is designed for local coding-agent deployment, enabling on-device code generation and debugging without cloud dependency.

Gemini 4 Carbon is a specialized model within Google's Gemini 4 family, focused on long-horizon coding and cyber-defense tasks. Released October 28, 2026, it initially has restricted access through Google's Fairwind security program, targeting enterprise and security-focused use cases.

ColGrep-Agent-2B is a specialized 2-billion-parameter open-weight model released by LightOn AI on October 12, 2026, designed as a local code-localization subagent. It performs repository-level code search to reduce expensive API calls to primary coding agents, supporting integrations with Claude Code, Codex, and OpenCode. Vendor-reported evaluations show 34% API-token reduction and 40% cache-aware cost reduction across 52 questions in 13 repositories.