Disclaimer
We built Anvil. That means this comparison comes with an inherent conflict of interest. We’ve done our best to write an honest assessment — including the parts where our tool isn’t the right choice. Try all of these tools yourself and pick based on your actual workflow.
The Contenders
Anvil (Culpur Defense) — Terminal-native, 5 providers, credential vault, live remote control.
Claude Code (Anthropic) — Official Claude CLI, deep Anthropic integration, MCP ecosystem.
Codex CLI (OpenAI) — Direct GPT/o-series access, sandboxed execution.
Cursor — VS Code fork with AI built into the editor.
Continue — Open-source IDE extension, multi-provider, community-driven.
Head-to-Head Comparison
| Feature | Anvil | Claude Code | Codex CLI | Cursor | Continue |
|---|---|---|---|---|---|
| Interface | Terminal | Terminal | Terminal | IDE | IDE extension |
| AI Providers | 5 | 1 (Anthropic) | 1 (OpenAI) | Multiple | Many |
| Local Models (Ollama) | First-class | No | No | Partial | First-class |
| Credential Vault | 21 types, AES-256-GCM | OAuth + keychain | API key | Account | Config file |
| Remote Control | Live bidirectional | No | No | No | No |
| Offline / Air-gap | Yes | No | No | No | Yes |
| Open Source | No | No | Yes (CLI) | No | Yes |
Where Anvil Wins
Live Remote Control — the feature nobody else has built. Pair two terminals over an encrypted channel and share an active AI session bidirectionally.
Typed Credential Vault — 21 credential types, integrated into session context.
Multi-Provider Failover — five providers, automatic switching on rate limits.
Single Binary, Air-Gap Ready — 15MB, zero dependencies, works offline with Ollama.
Where Claude Code Wins
Deeper Anthropic Integration — OAuth login, usage limits tracking, direct model access.
Git Worktree Isolation — sub-agents work in isolated branches.
MCP Ecosystem — hundreds of community-built servers, reference implementation.
Where Cursor Wins
It’s an IDE. Inline diff previews, tab completion in the editor buffer, point-and-click code actions. If you don’t live in the terminal, Cursor’s barrier to entry is significantly lower.
Where Codex Wins
Direct GPT-5 / o3 access. Sandboxed execution. Strong code generation benchmarks.
The Real Question
It’s not “which tool is best” — it’s “which fits your workflow.”
- Terminal + security + remote collaboration: Anvil
- Deepest Claude integration + agentic workflows: Claude Code
- AI in your IDE: Cursor
- OpenAI stack + sandboxed execution: Codex CLI
- Open source + multi-provider + IDE: Continue
Try Them All
- Anvil — culpur.net/anvil
- Claude Code — claude.ai/code
- Codex CLI — github.com/openai/codex
- Cursor — cursor.com
- Continue — continue.dev
This article was written by the Culpur Defense team. We are the makers of Anvil. If we’ve gotten something wrong about a competitor, reach out and we’ll correct it.
