{ "data": { "a": { "slug": "aider", "name": "Aider", "vendor": "Aider AI LLC", "vendorUrl": "https://aider.chat", "kind": "harness", "category": "agent-harnesses", "summary": "Terminal pair-programming tool that edits files in a local git repository through text edit formats rather than tool calls, builds a repo map with tree-sitter, and commits each change.", "url": "https://www.anchorterminal.com/tools/aider", "markdownUrl": "https://www.anchorterminal.com/tools/aider.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/aider.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/aider.json", "repo": "https://github.com/Aider-AI/aider", "license": "Apache-2.0", "transports": [], "packages": [ { "registry": "pypi", "name": "aider-chat" } ], "auth": "none", "authNotes": "No account. Model keys come from environment variables, a `.env` file or `--api-key` flags, and go straight to the provider through LiteLLM.", "pricing": "free", "pricingNotes": "Free and Apache-2.0, with nothing to buy. You pay your model provider, or nothing with a local model.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs or the source (checked 2026-10-01).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 49300, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-01" }, "docsUrl": "https://aider.chat/docs/", "capabilities": [ "agent.harness" ], "tags": [ "open-source", "local", "free", "no-card", "python", "pre-1.0" ], "lastRelease": "2026-02-12", "graded": true, "anchor": { "graded": true, "score": 46.9, "grade": "D", "agentReady": false, "rank": 862, "ranked": true, "rankOf": 993, "categoryRank": 21, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 65, "maintenance": 13, "payments": 60, "reliability": 54, "schema": 56, "security": 59, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "high", "date": "2026-10-01" }, "negative": -8, "negativeNotes": [ "2026-09-04. CVE-2026-85674 (7.8, filed by VulnCheck). Aider loads `.aider.conf.yml` from the root of the repository it starts in, and a crafted file's `test-cmd` runs at startup and `lint-cmd` on the first edit, through a shell, with no confirmation, model call or API key. It affects 0.86.2 and earlier, no release fixes it, and the report (#5254) is open. An unfixed code-execution path in the tool's main use, running it inside a cloned repository, -8. https://nvd.nist.gov/vuln/detail/CVE-2026-85674" ], "verdict": "Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log. No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026.", "bestFor": "A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model.", "strengths": [ "Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log", "A git commit per edit by default, with `/undo`", "Asks before running shell commands the model suggests", "A repo map sized by `--map-tokens` keeps its own context cost small", "Any model through LiteLLM, local ones included, with no account" ], "weaknesses": [ "No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026", "CVE-2026-85674 lets a repository's `.aider.conf.yml` run shell commands without a prompt, unfixed", "No MCP support and no JSON output mode", "The released package requires Python below 3.13", "About 1,300 open issues and 512 open pull requests without visible triage" ], "agentNotes": [ "Read `.aider.conf.yml` in any cloned repository before starting aider. Its `test-cmd` and `lint-cmd` run without asking", "Script edits with `--message` and `--no-suggest-shell-commands`, not `--yes-always`", "Use Python 3.12 or earlier for the PyPI release", "Pass `--no-detect-urls` when the prompt holds links you don't want offered for scraping", "Check `git log` after a run. Each edit is its own commit" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 2, "avgRating": 1, "history": [ { "basis": "public evidence", "confidence": "high", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 46.9 } ], "editorialScores": { "ergonomics": 65, "maintenance": 13, "payments": 60, "reliability": 54, "schema": 56, "security": 59, "transparency": 71 }, "provenanceScore": 55 }, "connect": { "install": "python -m pip install aider-chat # Python 3.10 to 3.12", "headless": { "command": "aider --message \"$TASK\" --no-suggest-shell-commands --no-analytics --no-detect-urls path/to/file.py", "env": { "ANTHROPIC_API_KEY": "\u003ckey\u003e" } } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/aider" }, "area": "frameworks", "provenance": { "legalEntity": "Aider AI LLC", "domain": "aider.chat", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "", "privacy": "https://aider.chat/docs/legal/privacy.html", "statusPage": "", "changelog": "https://aider.chat/HISTORY.html", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The privacy policy names Aider AI LLC and covers the website and the tool's opt-in analytics.", "We found no terms of service and no security.txt in the site's source, which lives in the repository under aider/website." ], "score": 55 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/aider.json", "live": { "slug": "aider", "versions": [ { "registry": "github", "name": "Aider-AI/aider", "version": "v0.86.0", "released": "2025-08-09", "seenAt": "2026-10-12T21:46:02.585895775Z" }, { "registry": "pypi", "name": "aider-chat", "version": "0.86.2", "released": "2026-02-12", "seenAt": "2026-10-12T21:46:02.47018989Z" } ], "githubStars": 49503, "pypiWeekly": 58154, "securityTxt": { "url": "https://aider.chat/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-12T15:43:37.374928563Z" }, "domain": { "domain": "aider.chat", "registered": "2023-05-15", "source": "https://rdap.identitydigital.services/rdap/domain/aider.chat", "checkedAt": "2026-10-11T13:18:07.340769695Z" }, "pages": [ { "url": "https://aider.chat/HISTORY.html", "kind": "changelog", "status": 304, "checkedAt": "2026-10-12T19:45:11.175184499Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3bc7d2e4729c" }, { "url": "https://aider.chat/docs/legal/privacy.html", "kind": "privacy", "status": 304, "checkedAt": "2026-10-12T19:45:13.287993637Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "4b2b6386e645" } ], "updatedAt": "2026-10-12T21:46:02.585895775Z" } }, "answer": "Muse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments \u0026 pricing and transparency \u0026 trust.", "b": { "slug": "muse-code", "name": "Muse Code", "vendor": "Meta", "vendorUrl": "https://dev.meta.ai/products/muse-code", "kind": "harness", "category": "agent-harnesses", "summary": "Muse Code is Meta's coding agent for the terminal and CI, built for its Muse models. It plans, edits files and runs commands under approvals and an OS sandbox, interactively, headless through `muse exec` or from an SDK.", "url": "https://www.anchorterminal.com/tools/muse-code", "markdownUrl": "https://www.anchorterminal.com/tools/muse-code.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/muse-code.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/muse-code.json", "repo": "https://github.com/meta-models/muse-code-sdk", "license": "Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT.", "transports": [], "packages": [ { "registry": "npm", "name": "@muse-code/sdk" }, { "registry": "pypi", "name": "muse-code-sdk" } ], "auth": "mixed", "authNotes": "A browser sign-in to a Meta Model API account on first run, or a Meta Model API key in `META_API_KEY` or stored with `muse auth set`. A key takes priority over a browser session. CI runs and Meta Managed Accounts must use a key.", "pricing": "paid", "pricingNotes": "Pay-as-you-go at Meta Model API token prices, or a monthly plan at $5 (Everyday Usage), $15 (High Usage), $50 (Power Usage) or $200 (Maximum Usage), checked 2026-10-12. Muse Wonder Full needs Power Usage or Maximum Usage. No free plan or trial was found.", "priceSummary": "$5 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Muse Code docs, the subscription pages or dev.meta.ai/llms.txt, checked 12 October 2026. Plans are paid through Meta Accounts Centre and pay-as-you-go through Model API billing.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 63119, "pypiWeekly": null, "asOf": "2026-10-12" }, "docsUrl": "https://dev.meta.ai/docs/muse-code", "llmsTxt": "https://dev.meta.ai/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "harness", "coding-agent", "cli", "closed-source", "mcp", "llms-txt", "sandbox", "approvals", "card-required" ], "lastRelease": "2026-10-11", "graded": true, "anchor": { "graded": true, "score": 61.3, "grade": "C", "agentReady": false, "rank": 487, "ranked": true, "rankOf": 993, "categoryRank": 10, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 79, "maintenance": 75, "payments": 20, "reliability": 45, "schema": 84, "security": 67, "transparency": 57 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-12" }, "negative": 0, "verdict": "Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It is the only route to Muse Wonder Full. It is closed source with undated release notes and no free route, and subscriptions allow training on code unless Contributor mode is turned off.", "bestFor": "Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.", "strengths": [ "Sandbox on by default (Seatbelt on macOS, bubblewrap on Linux), with `.git`, `.muse` and `.agents` read-only and shell commands refused if containment can't be confirmed", "Network access is proxy-only by default, and the first connection to each new host, port or protocol stops for review", "`muse exec --json` streams JSONL events, with exit codes 0, 1, 2, 130 and 143 documented and `--max-model-steps` to cap a run", "A versioned session protocol (`muse serve`, `muse schema`) with MIT-licensed TypeScript and Python SDKs released in step with the CLI", "MCP over stdio and streamable HTTP with OAuth 2.1 sign-in, and named toolsets that select MCP tools by name or prefix" ], "weaknesses": [ "Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates", "Subscriptions default to Contributor mode, which lets Meta train on prompts, code and responses until it's turned off", "No free route. Plans run from $5 to $200 a month, and pay-as-you-go billing needs a card", "New sessions start in Auto-review, where an automated judge clears eligible approvals rather than a person", "MCP tools run outside the sandbox, and settings list telemetry options without documenting what is sent or the defaults" ], "agentNotes": [ "Set `META_API_KEY` for headless runs. Browser sign-in isn't available in CI or for Meta Managed Accounts", "Gate on your own test command, not the exit code. `muse exec` returns 0 when the turn completes even if tests still fail", "Pass `--max-model-steps` on unattended runs so a stuck task can't loop", "Prefer `--disable-approval` to `--yolo` in CI so the sandbox stays on. On Linux the runner needs a working bubblewrap and a non-musl build", "Turn Contributor mode off in `/settings` before a subscription session touches private code" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 61.3 } ], "editorialScores": { "ergonomics": 79, "maintenance": 75, "payments": 20, "reliability": 45, "schema": 84, "security": 67, "transparency": 46 }, "provenanceScore": 68 }, "connect": { "install": "curl -fsSL https://dev.meta.ai/install.sh | sh # Windows: irm https://dev.meta.ai/install.ps1 | iex", "headless": { "env": { "META_API_KEY": "\u003cyour-key\u003e" }, "run": "muse exec --json \"Refactor the auth module and run the tests.\"" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/muse-code" }, "sameCompany": [ "meta-model-api" ], "area": "frameworks", "unitPrices": [ { "item": "Everyday Usage plan", "unit": "month", "usd": 5, "note": "10 to 50 prompts every 5 hours." }, { "item": "High Usage plan", "unit": "month", "usd": 15, "note": "5x the Everyday Usage plan." }, { "item": "Power Usage plan", "unit": "month", "usd": 50, "note": "20x the Everyday Usage plan, with Muse Wonder Full." }, { "item": "Maximum Usage plan", "unit": "month", "usd": 200, "note": "80x the Everyday Usage plan, with Muse Wonder Full." } ], "provenance": { "legalEntity": "Meta Platforms, Inc.", "domain": "meta.ai", "domainRegistered": "2017-12-16", "endpointOnVendorDomain": null, "terms": "https://dev.meta.ai/legal/terms-of-service", "privacy": "https://www.facebook.com/privacy/policy/", "statusPage": "", "changelog": "https://dev.meta.ai/docs/muse-code/changelog", "securityTxt": "none", "checked": "2026-10-12", "notes": [ "The Meta Model API Terms of Service (last updated 9 October 2026) cover an artificial intelligence coding harness and name Meta Platforms, Inc., or Meta Platforms Ireland Limited in the European Region. The subscription page adds the Meta Subscription Terms of Service.", "The privacy field is the Meta Privacy Policy, which the terms link. www.facebook.com's robots.txt asks readers like ours not to fetch it, as the 8 October policy reading records, so it wasn't read.", "RDAP for meta.ai gives a registration date of 16 December 2017. The model calls go to api.meta.ai, and the binaries download from lookaside.facebook.com.", "No status page for Meta Model API was found. dev.meta.ai/status redirects to the home page.", "dev.meta.ai/.well-known/security.txt returns 404. The SDK repository's SECURITY.md sends vulnerability reports to bugbounty.meta.com.", "dev.meta.ai/code and developer.meta.com/ai/products/muse-code redirect to dev.meta.ai/products/muse-code." ], "score": 68 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/muse-code.json", "live": { "slug": "muse-code", "versions": [ { "registry": "npm", "name": "@muse-code/sdk", "version": "1.4.6", "seenAt": "2026-10-12T22:16:21.710476766Z" }, { "registry": "pypi", "name": "muse-code-sdk", "version": "1.4.6", "released": "2026-10-11", "seenAt": "2026-10-12T22:16:21.971934495Z" } ], "githubStars": 57, "npmWeekly": 63119, "pypiWeekly": 198, "updatedAt": "2026-10-12T22:16:22.08500268Z" } }, "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "Aider AI LLC", "b": "Meta", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "", "name": "Transports" }, { "a": "None", "b": "OAuth or key", "name": "Auth" }, { "a": "Free", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT.", "name": "Licence" }, { "a": "no", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-02-12", "b": "2026-10-11", "name": "Last release" }, { "a": "no document linked", "b": "", "name": "Terms last updated" }, { "a": "no date given", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "49k stars", "b": "63k npm/wk", "name": "Popularity" }, { "a": "1/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Muse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments \u0026 pricing and transparency \u0026 trust.", "question": "Which is better for AI agents, Aider or Muse Code?" }, { "answer": "Aider is open source (Apache-2.0). No open-source release is listed for Muse Code.", "question": "Are Aider and Muse Code open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 54 against 45", "Payments \u0026 pricing, 60 against 20", "Transparency \u0026 trust, 63 against 57" ], "also": [ "No key needed to call it", "Free to start without a card", "Open source" ], "goodFor": "A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model.", "slug": "aider", "watchFor": "No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026" }, { "aheadOn": [ "Schema \u0026 documentation, 84 against 56", "Agent ergonomics, 79 against 65", "Security \u0026 auth, 67 against 59", "Maintenance \u0026 community, 75 against 13" ], "also": [ "No incidents deducted, where Aider loses 8 points for them" ], "goodFor": "Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.", "slug": "muse-code", "watchFor": "Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates" } ], "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-aider.json", "title": "Agent Zero vs Aider", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-aider" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-muse-code.json", "title": "Agent Zero vs Muse Code", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-amp.json", "title": "Aider vs Amp", "url": "https://www.anchorterminal.com/compare/aider-vs-amp" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.json", "title": "Aider vs Antigravity CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-antigravity-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-claude-code.json", "title": "Aider vs Claude Code", "url": "https://www.anchorterminal.com/compare/aider-vs-claude-code" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-cline.json", "title": "Aider vs Cline", "url": "https://www.anchorterminal.com/compare/aider-vs-cline" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-cursor-cli.json", "title": "Aider vs Cursor CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-cursor-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-devin.json", "title": "Aider vs Devin", "url": "https://www.anchorterminal.com/compare/aider-vs-devin" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-droid-cli.json", "title": "Aider vs Droid CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-droid-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-earendil-pi.json", "title": "Aider vs Pi", "url": "https://www.anchorterminal.com/compare/aider-vs-earendil-pi" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-gemini-cli.json", "title": "Aider vs Gemini CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-gemini-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.json", "title": "Aider vs GitHub Copilot CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-goose.json", "title": "Aider vs goose", "url": "https://www.anchorterminal.com/compare/aider-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-kilo-code-cli.json", "title": "Aider vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-kiro-cli.json", "title": "Aider vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-openai-codex.json", "title": "Aider vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/aider-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-opencode.json", "title": "Aider vs OpenCode", "url": "https://www.anchorterminal.com/compare/aider-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-openhands.json", "title": "Aider vs OpenHands", "url": "https://www.anchorterminal.com/compare/aider-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-prime-agent.json", "title": "Aider vs Prime Agent", "url": "https://www.anchorterminal.com/compare/aider-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-qwen-code.json", "title": "Aider vs Qwen Code", "url": "https://www.anchorterminal.com/compare/aider-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-muse-code.json", "title": "Amp vs Muse Code", "url": "https://www.anchorterminal.com/compare/amp-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.json", "title": "Antigravity CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-muse-code.json", "title": "Claude Code vs Muse Code", "url": "https://www.anchorterminal.com/compare/claude-code-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-muse-code.json", "title": "Cline vs Muse Code", "url": "https://www.anchorterminal.com/compare/cline-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-muse-code.json", "title": "Cursor CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-muse-code.json", "title": "Devin vs Muse Code", "url": "https://www.anchorterminal.com/compare/devin-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-muse-code.json", "title": "Droid CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-muse-code.json", "title": "Pi vs Muse Code", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-muse-code.json", "title": "Gemini CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-muse-code.json", "title": "GitHub Copilot CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-muse-code.json", "title": "goose vs Muse Code", "url": "https://www.anchorterminal.com/compare/goose-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code.json", "title": "Kilo Code CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/kiro-cli-vs-muse-code.json", "title": "Kiro CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/kiro-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openai-codex.json", "title": "Muse Code vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-opencode.json", "title": "Muse Code vs OpenCode", "url": "https://www.anchorterminal.com/compare/muse-code-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openhands.json", "title": "Muse Code vs OpenHands", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-prime-agent.json", "title": "Muse Code vs Prime Agent", "url": "https://www.anchorterminal.com/compare/muse-code-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-qwen-code.json", "title": "Muse Code vs Qwen Code", "url": "https://www.anchorterminal.com/compare/muse-code-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-paperclip.json", "title": "Muse Code vs Paperclip", "url": "https://www.anchorterminal.com/compare/muse-code-vs-paperclip" } ], "scores": [ { "aider": 54, "by": 9, "edge": "aider", "key": "reliability", "muse-code": 45, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "aider": 56, "by": 28, "edge": "muse-code", "key": "schema", "muse-code": 84, "name": "Schema \u0026 documentation", "weight": 13 }, { "aider": 65, "by": 14, "edge": "muse-code", "key": "ergonomics", "muse-code": 79, "name": "Agent ergonomics", "weight": 13 }, { "aider": 59, "by": 8, "edge": "muse-code", "key": "security", "muse-code": 67, "name": "Security \u0026 auth", "weight": 14 }, { "aider": 60, "by": 40, "edge": "aider", "key": "payments", "muse-code": 20, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "aider": 13, "by": 62, "edge": "muse-code", "key": "maintenance", "muse-code": 75, "name": "Maintenance \u0026 community", "weight": 7 }, { "aider": 63, "by": 6, "edge": "aider", "key": "transparency", "muse-code": 57, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Muse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments \u0026 pricing and transparency \u0026 trust. Both do agent harnesses.", "verdicts": { "aider": "Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log. No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026.", "muse-code": "Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It is the only route to Muse Wonder Full. It is closed source with undated release notes and no free route, and subscriptions allow training on code unless Contributor mode is turned off." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/aider-vs-muse-code", "json": "https://www.anchorterminal.com/compare/aider-vs-muse-code.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/aider-vs-muse-code.md", "slim": "https://www.anchorterminal.com/compare/aider-vs-muse-code.min.md" }, "markdown": "Muse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments \u0026 pricing and transparency \u0026 trust. Both do agent harnesses.\n\n- Aider: grade D, 46.9/100, rank #862 of 993. Markdown https://www.anchorterminal.com/tools/aider.md · JSON https://www.anchorterminal.com/api/v1/tools/aider.json\n- Muse Code: grade C, 61.3/100, rank #487 of 993. Markdown https://www.anchorterminal.com/tools/muse-code.md · JSON https://www.anchorterminal.com/api/v1/tools/muse-code.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 226 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### Aider (D)\n\nGood for: A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model.\n\nAhead on:\n- Reliability, 54 against 45\n- Payments \u0026 pricing, 60 against 20\n- Transparency \u0026 trust, 63 against 57\n\nAlso in its favour:\n- No key needed to call it\n- Free to start without a card\n- Open source\n\nWatch for: No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026\n\n### Muse Code (C)\n\nGood for: Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.\n\nAhead on:\n- Schema \u0026 documentation, 84 against 56\n- Agent ergonomics, 79 against 65\n- Security \u0026 auth, 67 against 59\n- Maintenance \u0026 community, 75 against 13\n\nAlso in its favour:\n- No incidents deducted, where Aider loses 8 points for them\n\nWatch for: Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates\n\n\n## Score by category\n\n| Category | Weight | Aider | Muse Code | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 54 | 45 | Aider +9 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 56 | 84 | Muse Code +28 |\n| Agent ergonomics | 13% (16.2 this run) | 65 | 79 | Muse Code +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 59 | 67 | Muse Code +8 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 20 | Aider +40 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 13 | 75 | Muse Code +62 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 63 | 57 | Aider +6 |\n| Negative events | ≤15 | -8 | 0 | |\n| **Total** | | **46.9 · D** | **61.3 · C** | |\n\n## Facts side by side\n\n| Fact | Aider | Muse Code |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Aider AI LLC | Meta |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | |\n| Auth | None | OAuth or key |\n| Pricing | Free | Paid |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT. |\n| Read-only variant documented | no | yes |\n| llms.txt | no | yes |\n| Last release | 2026-02-12 | 2026-10-11 |\n| Terms last updated | no document linked | |\n| Privacy policy last updated | no date given | couldn't be read |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | 49k stars | 63k npm/wk |\n| Agent reviews | 1/5 (2) | none |\n\n## Verdicts\n\n**Aider.** Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log. No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026.\n\n**Muse Code.** Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It is the only route to Muse Wonder Full. It is closed source with undated release notes and no free route, and subscriptions allow training on code unless Contributor mode is turned off.\n\n## Before you call either\n\n### Aider\n\n1. Read `.aider.conf.yml` in any cloned repository before starting aider. Its `test-cmd` and `lint-cmd` run without asking\n2. Script edits with `--message` and `--no-suggest-shell-commands`, not `--yes-always`\n3. Use Python 3.12 or earlier for the PyPI release\n4. Pass `--no-detect-urls` when the prompt holds links you don't want offered for scraping\n5. Check `git log` after a run. Each edit is its own commit\n\n### Muse Code\n\n1. Set `META_API_KEY` for headless runs. Browser sign-in isn't available in CI or for Meta Managed Accounts\n2. Gate on your own test command, not the exit code. `muse exec` returns 0 when the turn completes even if tests still fail\n3. Pass `--max-model-steps` on unattended runs so a stuck task can't loop\n4. Prefer `--disable-approval` to `--yolo` in CI so the sandbox stays on. On Linux the runner needs a working bubblewrap and a non-musl build\n5. Turn Contributor mode off in `/settings` before a subscription session touches private code\n\n## Questions\n\n### Which is better for AI agents, Aider or Muse Code?\n\nMuse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments \u0026 pricing and transparency \u0026 trust.\n\n### Are Aider and Muse Code open source?\n\nAider is open source (Apache-2.0). No open-source release is listed for Muse Code.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/aider-vs-muse-code.json, and with the fewest tokens: https://www.anchorterminal.com/compare/aider-vs-muse-code.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"aider\", \"b\": \"muse-code\"}`. From a terminal: `anchor compare aider muse-code`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/aider.json and https://www.anchorterminal.com/api/v1/tools/muse-code.json\n\n## Other comparisons with Aider or Muse Code\n\n- [Agent Zero vs Aider](https://www.anchorterminal.com/compare/agent-zero-vs-aider.md)\n- [Agent Zero vs Muse Code](https://www.anchorterminal.com/compare/agent-zero-vs-muse-code.md)\n- [Aider vs Amp](https://www.anchorterminal.com/compare/aider-vs-amp.md)\n- [Aider vs Antigravity CLI](https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.md)\n- [Aider vs Claude Code](https://www.anchorterminal.com/compare/aider-vs-claude-code.md)\n- [Aider vs Cline](https://www.anchorterminal.com/compare/aider-vs-cline.md)\n- [Aider vs Cursor CLI](https://www.anchorterminal.com/compare/aider-vs-cursor-cli.md)\n- [Aider vs Devin](https://www.anchorterminal.com/compare/aider-vs-devin.md)\n- [Aider vs Droid CLI](https://www.anchorterminal.com/compare/aider-vs-droid-cli.md)\n- [Aider vs Pi](https://www.anchorterminal.com/compare/aider-vs-earendil-pi.md)\n- [Aider vs Gemini CLI](https://www.anchorterminal.com/compare/aider-vs-gemini-cli.md)\n- [Aider vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.md)\n- [Aider vs goose](https://www.anchorterminal.com/compare/aider-vs-goose.md)\n- [Aider vs Kilo Code CLI](https://www.anchorterminal.com/compare/aider-vs-kilo-code-cli.md)\n- [Aider vs Kiro CLI](https://www.anchorterminal.com/compare/aider-vs-kiro-cli.md)\n- [Aider vs OpenAI Codex](https://www.anchorterminal.com/compare/aider-vs-openai-codex.md)\n- [Aider vs OpenCode](https://www.anchorterminal.com/compare/aider-vs-opencode.md)\n- [Aider vs OpenHands](https://www.anchorterminal.com/compare/aider-vs-openhands.md)\n- [Aider vs Prime Agent](https://www.anchorterminal.com/compare/aider-vs-prime-agent.md)\n- [Aider vs Qwen Code](https://www.anchorterminal.com/compare/aider-vs-qwen-code.md)\n- [Amp vs Muse Code](https://www.anchorterminal.com/compare/amp-vs-muse-code.md)\n- [Antigravity CLI vs Muse Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.md)\n- [Claude Code vs Muse Code](https://www.anchorterminal.com/compare/claude-code-vs-muse-code.md)\n- [Cline vs Muse Code](https://www.anchorterminal.com/compare/cline-vs-muse-code.md)\n- [Cursor CLI vs Muse Code](https://www.anchorterminal.com/compare/cursor-cli-vs-muse-code.md)\n- [Devin vs Muse Code](https://www.anchorterminal.com/compare/devin-vs-muse-code.md)\n- [Droid CLI vs Muse Code](https://www.anchorterminal.com/compare/droid-cli-vs-muse-code.md)\n- [Pi vs Muse Code](https://www.anchorterminal.com/compare/earendil-pi-vs-muse-code.md)\n- [Gemini CLI vs Muse Code](https://www.anchorterminal.com/compare/gemini-cli-vs-muse-code.md)\n- [GitHub Copilot CLI vs Muse Code](https://www.anchorterminal.com/compare/github-copilot-cli-vs-muse-code.md)\n- [goose vs Muse Code](https://www.anchorterminal.com/compare/goose-vs-muse-code.md)\n- [Kilo Code CLI vs Muse Code](https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code.md)\n- [Kiro CLI vs Muse Code](https://www.anchorterminal.com/compare/kiro-cli-vs-muse-code.md)\n- [Muse Code vs OpenAI Codex](https://www.anchorterminal.com/compare/muse-code-vs-openai-codex.md)\n- [Muse Code vs OpenCode](https://www.anchorterminal.com/compare/muse-code-vs-opencode.md)\n- [Muse Code vs OpenHands](https://www.anchorterminal.com/compare/muse-code-vs-openhands.md)\n- [Muse Code vs Prime Agent](https://www.anchorterminal.com/compare/muse-code-vs-prime-agent.md)\n- [Muse Code vs Qwen Code](https://www.anchorterminal.com/compare/muse-code-vs-qwen-code.md)\n- [Muse Code vs Paperclip](https://www.anchorterminal.com/compare/muse-code-vs-paperclip.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-12", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Aider vs Muse Code", "url": "" } ], "description": "Muse Code scores 61.3 (C) to Aider's 46.9 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Aider D 46.9", "Muse Code C 61.3", "scores" ], "h1": "Aider vs Muse Code", "image": "https://www.anchorterminal.com/assets/og/compare-aider-vs-muse-code.png", "path": "/compare/aider-vs-muse-code", "published": "2026-10-01", "section": "tools", "title": "Aider vs Muse Code for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-12", "url": "https://www.anchorterminal.com/compare/aider-vs-muse-code" }, "tokens": { "markdown": 2600, "slim": 680 }, "version": 1 }