A living encyclopedia of AI code editors, IDE assistants, and terminal coding agents. Updated monthly with fresh repo metadata, releases, landscape shifts, and independent benchmark results from the "Platform Engineer's Quest for the Best" series.
Vendors publish their own benchmark numbers. Nobody reproduces them independently, and nobody evaluates tools the way a platform engineer has to live with them: ops burden, failure modes, scale curves, and cost. This almanac is the public record of that work.
30 tools — Tier A: 17 · Tier B: 13
Every tool below has a full deep-dive page in tools/. Sorted by tier (A → B → C), then alphabetically.
| Tool | Type | License | Stars | Tier | Description | Detail |
|---|---|---|---|---|---|---|
| Aider | ** Terminal pair-programmer | Apache-2.0 | 47K+ | A | 47K+ GitHub stars; the original AI terminal pair-programmer with Git-native diffs, tree-sitter code analysis, and model-agnostic support for 50+ LLMs. | aider.md |
| Claude Code | ** CLI agent | Proprietary | — | A | Anthropic's flagship CLI-based AI coding agent; ~$2.5B ARR; 1M-token context; Agent Teams; SWE-bench 82%; the agentic coding tool of choice for… | claude-code.md |
| Cline | ** VS Code + CLI | Apache-2.0 | 64K+ | A | Open-source VS Code extension with 5M+ installs, 64K+ GitHub stars; BYOK autonomous coding agent with native subagents, browser automation, and… | cline.md |
| CodeRabbit | ** AI code review | Proprietary | — | A | $550M valuation; 8,000+ customers; automated AI code review that provides line-by-line feedback on pull requests with deep context understanding. | coderabbit.md |
| Codex CLI | ** CLI agent | Apache-2.0 | 95K+ | A | OpenAI's open-source CLI coding agent; 95K+ GitHub stars; Rust-native with sandboxed execution; included in ChatGPT subscriptions; 240+ tok/s… | codex-cli.md |
| Continue | ** IDE extension | Apache-2.0 | 35K+ | A | 35K+ GitHub stars; the leading open-source AI code assistant extension for VS Code and JetBrains with BYOK, codebase chat, inline completions, and… | continue.md |
| Cursor | ** AI-native IDE | Proprietary | — | A | VS Code fork by Anysphere; the market-leading AI-native IDE ($20–200/mo) with deep codebase indexing, multi-model chat, Tab completion, and agent… | cursor.md |
| Devin | ** Autonomous SWE | Proprietary | — | A | Cognition's autonomous AI software engineer; operates in a full VM with shell, browser, and editor; Slack-native; $20/mo entry + ACU-based pricing… | devin.md |
| Gemini CLI | ** CLI agent | Apache-2.0 | 106K+ | A | 106K+ GitHub stars; Google's open-source CLI agent with 1M-token context, 1,000 requests/day free tier, and full Gemini model integration. | gemini-cli.md |
| GitHub Copilot | ** IDE assistant | Proprietary | — | A | The most widely adopted AI coding assistant; integrated into GitHub's ecosystem with IDE plugins, CLI agent (Copilot CLI), and usage-based credits… | github-copilot.md |
| Kimi CLI | ** Terminal agent | Apache-2.0 (open source) | 9.1K+ | A | 9.1K+ GitHub stars; Moonshot AI's open-source CLI agent powered by the K2 model series with Agent Swarm (up to 300 parallel sub-agents) — the… | kimi-cli.md |
| OpenCode | ** Terminal TUI | MIT | 182K+ | A | 182K+ GitHub stars; a terminal-based AI coding agent with TUI, 75+ LLM provider support, and Go-based architecture — one of the fastest-growing… | opencode.md |
| OpenHands | ** Autonomous agent | MIT | 79K+ | A | 79K+ GitHub stars (formerly OpenDevin); the leading open-source autonomous AI software engineering agent with Docker-sandboxed execution,… | openhands.md |
| Tabnine | ** Completion + chat | Proprietary | — | A | 1M+ developers; enterprise-focused AI coding assistant with on-prem deployment, zero data retention, SOC 2/GDPR compliance, and private model… | tabnine.md |
| Trae | ** AI IDE | Proprietary | — | A | ByteDance's free AI-native IDE (VS Code fork); strong for Chinese language ecosystems with multi-model support (Claude, GPT, DeepSeek) and… | trae.md |
| Windsurf | ** AI-native IDE | Proprietary | — | A | Formerly Codeium; an AI-native VS Code fork with Cascade multi-step agentic flows; acquired by Cognition (makers of Devin) in December 2025. | windsurf.md |
| Zed | ** Rust-native editor | Open source (GPL/AGPL core + proprietary extensions) | 86K+ | A | 86K+ GitHub stars; GPU-accelerated Rust-native code editor with multi-provider AI chat, real-time collaboration, and industry-leading performance. | zed.md |
| Amazon Q Developer | ** IDE + CLI | Proprietary | — | B | AWS's AI coding assistant (formerly CodeWhisperer); deeply integrated with AWS services; includes IDE chat, CLI agent, code transformation, and… | amazon-q-developer.md |
| Cody | ** Codebase assistant | Proprietary | — | B | Sourcegraph's AI coding assistant; specializes in large-codebase understanding with deep code search, multi-repo context, and enterprise code… | cody.md |
| JetBrains Junie | ** IDE agent | Proprietary | — | B | JetBrains' AI coding agent integrated into IntelliJ IDEs; multi-agent support, BYOK, and deep JetBrains platform integration; AI Pro $10/mo or… | jetbrains-junie.md |
| Kilo Code | ** Multi-platform agent | MIT (open source) | 25K+ | B | 25K+ GitHub stars; a multi-platform open-source AI coding agent with 500+ model support, Architect/Code/Debug modes, and cross-IDE compatibility —… | kilo-code.md |
| Oh-My-Pi (omp) | ** Terminal agent | MIT | 9.3K GitHub | B | Terminal AI agent that bundles IDE-grade capabilities — LSP, DAP debuggers, persistent Python/JS kernels, ripgrep, and ast-grep — into a single… | oh-my-pi.md |
| Replit Agent | ** Cloud app builder | Proprietary | — | B | Replit's AI agent that builds full-stack applications from natural language prompts, runs them in cloud dev environments, and deploys with one… | replit-agent.md |
| Roo Code | ** VS Code extension | Apache-2.0 (open source) | 24K+ | B | 24K+ GitHub stars; a popular Cline fork with enhanced multi-mode agent loop, custom modes, memory bank, and community-driven development — the… | roo-code.md |
| Supermaven | ** Completion engine | Proprietary | — | B | Acquired by Cursor (Anysphere) in late 2024; known for fast, long-context inline completions with a 1M-token context window and low-latency inference. | supermaven.md |
| Tabby | ** Self-hosted completion | Apache-2.0 (open source) | 34K+ | B | 34K+ GitHub stars; open-source self-hosted AI code completion server with Kubernetes-ready deployment, server-side code indexing, RAG, and support… | tabby.md |
| 文心快码 (Baidu Comate) | ** IDE plugin | Proprietary | — | B | Baidu's AI coding assistant powered by the ERNIE (文心) model series; supports 100+ languages with expertise in Chinese frameworks like 若依 (RuoYi);… | 文心快码.md |
| 腾讯云AI代码助手 (Tencent Cloud AI Code Assistant) | ** IDE plugin | Proprietary | — | B | Tencent Cloud's AI coding assistant with a hybrid model approach; reports 50%+ internal usage at Tencent; integrated with Tencent Cloud ecosystem… | 腾讯云ai代码助手.md |
| 豆包 MarsCode (Doubao MarsCode) | ** IDE + cloud IDE | Proprietary | — | B | ByteDance's AI coding assistant and cloud IDE; supports 100+ languages with project-aware completions; integrated into the Doubao (豆包) AI… | 豆包-marscode.md |
| 通义灵码 (Tongyi Lingma) | ** IDE plugin | Proprietary | — | B | Alibaba's AI coding assistant powered by the Tongyi (通义) model series; supports 200+ languages with database-aware coding, deep Aliyun… | 通义灵码.md |
Trae
CodeRabbit
Cursor · Windsurf
Devin
OpenHands
Claude Code · Codex CLI · Gemini CLI
Replit Agent
Cody
Tabnine
Supermaven
Amazon Q Developer
豆包 MarsCode (Doubao MarsCode)
JetBrains Junie
GitHub Copilot
Continue
文心快码 (Baidu Comate) · 腾讯云AI代码助手 (Tencent Cloud AI Code Assistant) · 通义灵码 (Tongyi Lingma)
Kilo Code
Zed
Tabby
OpenCode
Kimi CLI · Oh-My-Pi (omp)
Aider
Cline
Roo Code
git clone https://github.com/ArdurAI/ai-code-editor-almanac.git
cd ai-code-editor-almanac| You want… | Go to |
|---|---|
| The state of the landscape right now | The latest file in editions/ |
| Everything we know about one tool | tools/<name>.md |
| Machine-readable roster + metadata | data/ |
| Architecture diagrams | architecture.md |
| Benchmark results (rolling) | benchmarks/ |
| How tools are tested and ranked | methodology/benchmark-harness.md |
| Project intent & philosophy | INTENT.md |
| Implementation guide | IMPLEMENTATION.md |
| Testing methodology | TESTING.md |
| Troubleshooting | TROUBLESHOOTING.md |
Results published here come from a frozen-before-results harness. Full details in methodology/benchmark-harness.md:
- Standard benchmarks for comparability with published claims — every ranking ships a published vs. reproduced table.
- A custom PlatformOps benchmark: testing on infrastructure work — setup, reliability, scale, cost.
- A stress suite: contradiction storms, near-duplicate floods, concurrent writers, kill-the-backing-store chaos, cost-runaway measurement.
- Seven scored dimensions: accuracy, latency, token economics, scale behavior, ops burden, developer experience, data sovereignty.
The judge model, prompts (SHA-256-frozen), and control variables were fixed before any tool ran. Raw results JSON is published with every ranking.
We welcome contributions — new tools, data fixes, ranking challenges, and benchmark reproductions. See CONTRIBUTING.md for guidelines on how to add a tool, fix data, or challenge a ranking.
One edition per month under editions/YYYY-MM.md: refreshed metadata, notable releases, new entrants triaged in or out, and a diary of what was tested.
Content is licensed CC BY 4.0 — share and adapt with attribution to ArdurAI.
Authored by Team Ardur · CC BY 4.0