AI Models & Tools for Software Engineering (Feb 2026)

Claude Code

2026-05-15

Underlying Models (ranked by SWE-bench Verified)

Model Company SWE-bench Verified Release Date Open/Closed
Claude Opus 4.5 Anthropic 80.9% Nov 2025 Closed
Claude Opus 4.6 Anthropic 80.8% Feb 2026 Closed
MiniMax M2.5 MiniMax 80.2% ~Jan 2026 Open
GPT-5.2 OpenAI 80.0% ~Nov 2025 Closed
Claude Sonnet 4.5 Anthropic 77.2% Nov 2025 Closed
GLM-5 Zhipu AI 77.8% ~2025 Closed
Gemini 3 Pro Google 76.2% ~Late 2025 Closed
DeepSeek V3.2 DeepSeek Dec 2025 Open
Llama 4 Maverick Meta Apr 2025 Open

Coding Tools / Agents (that use the above models)

Tool Type Powered By Use Case
Claude Code CLI agent Claude Opus 4.6 Terminal-based autonomous coding agent
GitHub Copilot IDE extension GPT-5.2-Codex Inline completions + chat in VS Code/JetBrains
Cursor AI-native IDE Multiple (Claude, GPT) Multi-file edits, composer mode
OpenAI Codex Cloud agent GPT-5.x Background tasks on repos
Windsurf AI-native IDE Multiple Agentic IDE, multi-file editing
Devin Autonomous agent Proprietary Fully autonomous dev tasks

Note: SWE-bench Verified measures the ability to resolve real GitHub issues. Scores are tightly clustered at the top (~76–81%), so practical differences depend heavily on workflow and tooling.

Sources