Aider

  • Aider — Terminal-Native Open-Source AI Pair Programmer with Git-Aware Multi-File Edits (BYOK)

  • Created by Paul Gauthier (Apr 2023), now Aider-AI org, Apache 2.0, ~48k GitHub stars, 6.8M installs, 15B tokens/week. No acquisition, no sunset. Category ai-productivity-data, pipeline_stage=none. File under Dev.Official site: https://aider.chat​GitHub: https://github.com/Aider-AI/aider

    Snapshot

    Field Value
    Status Active (maintenance cadence slowed in 2026 but repo not archived, v0.86.2 Feb 2026)
    Origin Paul Gauthier / Aider-AI (USA), Apr 2023
    Lane Terminal CLI AI pair programmer, Git-native, BYOK, not IDE plugin, not autonomous agent
    Models Claude 3.7 Sonnet/Opus 4.x, GPT-4o/o1/o3-mini/GPT-5.x, DeepSeek R1/V3/V4-Flash, Gemini 1.5–2.5 Pro, Qwen, Ollama/LM Studio local, 100+ via LiteLLM
    Category ai-productivity-data / Dev

    Features (table)

    Layer Capability Notes
    Core loop Chat → SEARCH/REPLACE edit → apply → lint/test → auto-commit Developer is editor-of-record, not autonomous
    Repo map Tree-sitter/ctags codebase graph, --map-tokens cap Helps large repos without pasting files
    Chat modes /code /ask /architect /help Architect = strong planner + cheap editor model
    Multi-file edit Explicit /add files, cross-module rename/refactor No auto-discovery like Cursor
    Git integration Auto-commit per accepted change, /undo reverts last commit, diff reviewable Granular blameable history
    Context inputs @files, images, /web <url> → markdown, voice (Whisper) No browser automation
    Lint/test Run linter+test suite after each edit, model auto-fixes Opt-out with flags
    Models --model swap mid-session, architect+editor split, OpenRouter/LM Studio/Ollama LiteLLM backend
    Surface Terminal / SSH / tmux / Docker; pairs with vim/emacs/Helix/Zed/VS Code/JB (side pane) No GUI, no tab-complete
    Enterprise None native; air-gap via Ollama, audit via fork No SSO/audit/MCP (MCP on community roadmap #4506, not shipped)
    No No inline autocomplete, no GUI diff, no MCP server, no browser tool, no SaaS billing

    Pricing (2026-08, USD)

    Component Price Notes
    Aider CLI​ $0​ (Apache 2.0) pip install aider-chat, no sub, no credit meter
    LLM API (cloud) BYO Typical 0, DeepSeek V4-Flash ~10–40, GPT-5.x higher
    LLM (local) $0 Ollama Qwen2.5-Coder 14B / DeepSeek-Coder-V2, needs local GPU
    Effective solo 50/mo​ Light free-tier/local 30–50
    Paid tier None No Pro/Team/Enterprise SKU

    starting_price=$0; no first paid tier (you pay Anthropic/OpenAI/etc directly).

    Reviews (2026)

    Source Score Signal
    Product Hunt 4.6–4.9/5 (107+) Terminal purists love it
    G2 4.7/5 (17) Small sample, high satisfaction
    AI Agent Index 3.6/5 Flags maintenance slowdown
    ToolChase / aiproductivity 4.7–4.9 Model freedom + git discipline praised
    Complaint cluster — No GUI/tab-complete, MCP absent, 2026 release cadence dropped to ~1 release (v0.86.2 Feb), DeepSeek/OpenRouter outages bubble up, onboarding friction

    Praised: git-native undo, repo-map context, Ollama air-gap, architect mode cost control, editor-agnostic, Apache 2.0 audit/fork.

    Complained: terminal-only, no tab autocomplete, manual /add, no MCP, maintenance velocity down in 2026, not “walk away” autonomous.

    Access / Integration (table)

    Method Supported
    Install pip install aider-chat / pipx install aider-chat / aider-install
    Run cd repo && aider --model sonnet inside any Git repo
    Keys ANTHROPIC_API_KEY OPENAI_API_KEY GEMINI_API_KEY DEEPSEEK_API_KEY env or .env
    Models --model anthropic/claude-sonnet-4.5, openai/gpt-5, deepseek/deepseek-r1, olama_chat/qwen2.5-coder:14b, openrouter/...
    Editor pairing vim/emacs/Helix/Zed/VS Code/JetBrains side pane (no plugin needed)
    Context /add /web /read image paste, voice via Whisper
    No No REST API, no MCP, no web UI, no Slack/Teams bot

    Best For / Not For

    Best For Not For
    Terminal/SSH/Docker remote-server devs GUI-dependent developers (→ Cursor/Windsurf)
    Vim/Neovim/Helix/Zed loyalists Teams wanting tab-autocomplete (→ Copilot/Cursor)
    Air-gapped / NDA code via Ollama Orgs needing SSO/audit/MCP/central billing
    Cost-control architects (Gemini-plan + DeepSeek-edit) “One sentence, walk away” autonomy seekers (→ Claude Code/Devin)
    Git-history purists who want per-change commits Frontend devs needing browser screenshot loops (→ Cline)
    OSS auditors / model-switchers Non-developers

    Competitors (lane map)

    Lane Tool Aider edge / gap
    Terminal CLI agent Claude Code, OpenAI Codex CLI, Gemini CLI, Qwen Code​ Aider oldest/most mature repo-map; others have vendor model push + MCP
    OSS IDE plugin Continue, Cline/Roo Code​ Continue/Cline have GUI+MCP; Aider terminal-only but tighter git discipline
    AI-first editor Cursor, Windsurf​ They win on GUI/tab/MCP; Aider wins on $0+local+ssh
    Editor plugin GitHub Copilot, JetBrains AI​ Flat sub, zero-config; Aider BYOK/no-sub
    Autonomous SWE Devin, Factory​ Ticket-to-PR; Aider is pair-not-autonomous
    In-list overlap Exa, Cody, Q Dev(sunset), JB AI, Continue Dev lane only; no audio/video overlap

     

     

     

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