{ "data": { "a": { "slug": "llama-cpp", "name": "llama.cpp", "vendor": "ggml.ai (Hugging Face)", "vendorUrl": "https://llama.app", "kind": "http-api", "category": "local-ai", "summary": "Open-source C/C++ engine for running GGUF models locally, with a web interface and compatible model APIs.", "url": "https://www.anchorterminal.com/tools/llama-cpp", "markdownUrl": "https://www.anchorterminal.com/tools/llama-cpp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/llama-cpp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/llama-cpp.json", "repo": "https://github.com/ggml-org/llama.cpp", "license": "MIT", "transports": [ "http" ], "packages": [ { "registry": "oci", "name": "ghcr.io/ggml-org/llama.cpp" }, { "registry": "pypi", "name": "gguf" } ], "auth": "none", "authNotes": "No credential by default. `--api-key` (one key or a comma-separated list) or `--api-key-file` (one key a line) turns on a check for every route but /health and the web UI's files, with the key sent as `Authorization: Bearer` or `X-Api-Key`, never in the query string. Keys have no scopes and change only with a restart. TLS is built in with `--ssl-key-file` and `--ssl-cert-file`. The server binds 127.0.0.1:8080 by default, and CORS reflects any Origin with credentials allowed unless built-in tools, MCP servers or `--agent` are on, when it narrows to localhost (https://github.com/ggml-org/llama.cpp/blob/master/tools/server/README.md).", "pricing": "free", "pricingNotes": "Free under MIT, with no account, key or card. Nothing is sold. You pay for your own hardware and electricity.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs or the source (checked 2026-10-03).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 130200, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-03" }, "docsUrl": "https://github.com/ggml-org/llama.cpp/blob/master/tools/server/README.md", "capabilities": [ "inference.local", "inference.open-weights", "embed.text", "rerank", "inference.decision", "agent.mcp-client" ], "tags": [ "open-source", "local", "self-hosted", "free", "no-card", "openai-compatible", "docker", "pre-1.0", "no-telemetry" ], "lastRelease": "2026-09-23", "graded": true, "anchor": { "graded": true, "score": 60.2, "grade": "C", "agentReady": false, "rank": 253, "ranked": true, "rankOf": 452, "categoryRank": 3, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 81, "payments": 60, "reliability": 64, "schema": 47, "security": 52, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-03" }, "negative": -1, "negativeNotes": [ "2026-03-26. GHSA-j8rj-fmpv-wcxw (CVE-2026-34159, 9.8 at NVD), unauthenticated code execution through a GRAPH_COMPUTE bypass in the RPC backend, the most serious of four advisories published between January and March 2026 (the others a llama-server out-of-bounds write through a negative `n_discard` and two GGUF integer overflows). All were fixed in named builds and published as advisories, SECURITY.md says not to expose the RPC server or llama-server to untrusted networks, and the newest is more than six months old, -1. https://github.com/ggml-org/llama.cpp/security/advisories/GHSA-j8rj-fmpv-wcxw; https://github.com/ggml-org/llama.cpp/security" ], "verdict": "MIT, with no telemetry or update check in the source, and `--offline` blocks model downloads. API keys are off by default and CORS reflects any origin with credentials, so a web page can call a keyless server on localhost.", "strengths": [ "MIT, with no telemetry or update check in the source, and `--offline` blocks model downloads", "OpenAI chat completions, responses and embeddings, Anthropic messages, reranking and /v1/systemone from one server", "`response_fields`, `json_schema` and `grammar` control the size and shape of output, and errors carry an OpenAI-style type and code", "1,005 nightly builds and eight semver releases in 90 days, with 37 workflows running on every push to master", "Ten published GitHub advisories with CVEs and fixed builds, and SECURITY.md guidance on untrusted models and inputs" ], "weaknesses": [ "API keys are off by default and CORS reflects any origin with credentials, so a web page can call a keyless server on localhost", "No OpenAPI file of its own, and the REST API changelog stops at b4599", "Private security disclosure disabled since 1 June 2026, with fixes asked for as public pull requests", "Pre-1.0 (0.5.0), and semver releases are bare tags with no notes", "No official client library, and `n_predict` defaults to unlimited" ], "agentNotes": [ "Start the server with `--api-key` and `--cors-origins localhost` before anything else can reach the port. Both are off by default", "Pass `n_predict` or `max_tokens`. Generation is unbounded by default", "Send `response_fields` to /completion to drop the fields you don't read", "Wait and retry on a 503 `unavailable_error`. The model is still loading", "Read the server README of the build you run. Behaviour changes between nightly builds without a changelog entry" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 60.2 } ], "editorialScores": { "ergonomics": 73, "maintenance": 81, "payments": 60, "reliability": 64, "schema": 47, "security": 52, "transparency": 66 }, "provenanceScore": 53 }, "connect": { "install": "curl -LsSf https://llama.app/install.sh | sh # or: brew install llama.cpp; winget install llama.cpp\nllama serve -hf ggml-org/Qwen3.5-0.8B-GGUF # listens on 127.0.0.1:8080", "http": "curl --request POST \\\n --url http://localhost:8080/completion \\\n --header \"Content-Type: application/json\" \\\n --data '{\"prompt\": \"Building a website can be done in 10 simple steps:\",\"n_predict\": 128}'" }, "letme": { "capability": "https://letme.dev/inference.local", "tool": "https://letme.dev/llama-cpp" }, "area": "models", "provenance": { "legalEntity": "ggml.ai, part of Hugging Face since 2026", "domain": "llama.app", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/ggml-org/llama.cpp/releases", "securityTxt": "none", "checked": "2026-10-03", "notes": [ "The repository's About link is llama.app, which says it's by the llama.cpp team and Hugging Face and links no terms, privacy or security page. ggml.ai says the company was acquired by Hugging Face in 2026 and names no address.", "The `LICENSE` file reads Copyright (c) 2023-2026 The ggml authors.", "llama.app/.well-known/security.txt and llama.app/llms.txt return 404. SECURITY.md points to GitHub private advisories while saying private disclosure is disabled.", "There's no shared hosted endpoint. The server runs on the owner's machine." ], "score": 53 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/llama-cpp.json", "live": { "slug": "llama-cpp", "versions": [ { "registry": "github", "name": "ggml-org/llama.cpp", "version": "v0.5.0", "released": "2026-09-23", "seenAt": "2026-10-04T16:31:53.040249174Z" }, { "registry": "pypi", "name": "gguf", "version": "0.19.0", "released": "2026-05-06", "seenAt": "2026-10-04T16:31:52.933067593Z" } ], "githubStars": 130286, "securityTxt": { "url": "https://llama.app/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:16:00.86400098Z" }, "domain": { "domain": "llama.app", "registered": "2018-07-18", "source": "https://pubapi.registry.google/rdap/domain/llama.app", "checkedAt": "2026-10-04T13:04:03.05886804Z" }, "updatedAt": "2026-10-04T16:31:53.040249174Z" } }, "b": { "slug": "open-webui", "name": "Open WebUI", "vendor": "Open WebUI Inc.", "vendorUrl": "https://openwebui.com", "kind": "platform", "category": "local-ai", "summary": "Self-hosted web interface for chatting with models, from Open WebUI Inc., with a Python (FastAPI) back end and a Svelte front end.", "url": "https://www.anchorterminal.com/tools/open-webui", "markdownUrl": "https://www.anchorterminal.com/tools/open-webui.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/open-webui.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/open-webui.json", "repo": "https://github.com/open-webui/open-webui", "license": "Open WebUI License. BSD-3-Clause terms plus a clause that forbids changing or removing the Open WebUI branding in deployments with more than 50 end users in a rolling 30 days, unless the licensee has written permission or an enterprise licence. Code from before set commits stays under MIT or BSD-3-Clause (LICENSE_HISTORY), and contributors sign a CLA", "transports": [ "http" ], "packages": [ { "registry": "pypi", "name": "open-webui" }, { "registry": "oci", "name": "ghcr.io/open-webui/open-webui" } ], "auth": "api-key", "authNotes": "Sign-in is on by default (`WEBUI_AUTH`), the first account to sign up becomes admin, and sign-up then closes. An agent calls the API with `Authorization: Bearer \u003ctoken\u003e`, either an `sk-` API key from Settings \u003e Account or a session JWT, which lasts four weeks by default (`JWT_EXPIRES_IN`), and behind a reverse proxy that uses `Authorization` itself the key can go in an `x-api-key` header (https://docs.openwebui.com/reference/api-endpoints). API keys stay off until an administrator turns them on (`ENABLE_API_KEYS` defaults to false), a group permission decides who may create one, and they can be limited instance-wide to listed endpoints with `ENABLE_API_KEYS_ENDPOINT_RESTRICTIONS` and `API_KEYS_ALLOWED_ENDPOINTS` (https://github.com/open-webui/open-webui/blob/main/backend/open_webui/config.py). Each user has one key, `sk-` plus 32 hexadecimal characters, stored as plain text with a last-used time and no expiry set by the API (https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/auths.py). People sign in with email and password, OAuth or OIDC, LDAP or trusted headers, with SCIM 2.0 provisioning.", "pricing": "free", "pricingNotes": "Free to self-host under the Open WebUI License. Deployments with more than 50 end users in a rolling 30 days have to keep the Open WebUI branding unless they hold an enterprise licence or written permission. The enterprise licence (white-labelling, SLA-backed support, Terminals) is sold through sales to registered organisations only, with no published prices (https://docs.openwebui.com/enterprise). There's no hosted Open WebUI service. You pay your model provider, or nothing with a local model (checked 2026-10-03).", "priceSummary": "Free", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs or the source (checked 2026-10-03).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 153000, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-03" }, "docsUrl": "https://docs.openwebui.com", "llmsTxt": "https://docs.openwebui.com/llms.txt", "capabilities": [ "inference.local", "agent.mcp-client", "memory.user", "knowledge.search" ], "tags": [ "self-hosted", "local", "free", "python", "docker", "openai-compatible", "llms-txt", "enterprise" ], "lastRelease": "2026-09-21", "graded": true, "disclosure": "Open WebUI competes with LocalGhost, which Anchor Terminal's founder builds, and LocalGhost's own about page names it as a competitor. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.", "competesWith": "localghost", "anchor": { "graded": true, "score": 52, "grade": "D", "agentReady": false, "rank": 345, "ranked": true, "rankOf": 452, "categoryRank": 7, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 54, "maintenance": 91, "payments": 20, "reliability": 68, "schema": 60, "security": 63, "transparency": 73 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-03" }, "negative": -8, "negativeNotes": [ "2026-05-05. GHSA-2r4p-jpmg-48f4 (CVE-2026-44551, Critical, 9.1). LDAP sign-in accepted an empty password where the directory allows unauthenticated binds, giving full access to the victim's account. It affects 0.8.12 and earlier and was fixed in 0.9.0 (21 April 2026) before publication, -2. https://github.com/open-webui/open-webui/security/advisories/GHSA-2r4p-jpmg-48f4", "2026-07-02. GHSA-74h3-cxq7-vc5q (CVE-2026-59216, 7.7). A signed-in low-privilege user could run code and tools in another user's session through an unchecked Socket.IO session_id, which against an administrator meant code execution as the server process (root in default containers). Fixed in 0.10.0 on 29 June 2026 and published three days later, -2. https://github.com/open-webui/open-webui/security/advisories/GHSA-74h3-cxq7-vc5q", "2026-08-02 and 2026-09-04. Two account takeovers through OAuth, both High. GHSA-rq84-p6rr-vf89 accepted tokens issued to any client in the OAuth token exchange (fixed in 0.11.0), and GHSA-wpmr-8h3q-fwj7 (8.1) matched OAuth and OIDC subjects by substring on SQLite, so a crafted subject could sign in as an existing account, administrators included (fixed in 0.11.1 on 25 August). Both fixed before publication, -2. https://github.com/open-webui/open-webui/security/advisories/GHSA-rq84-p6rr-vf89; https://github.com/open-webui/open-webui/security/advisories/GHSA-wpmr-8h3q-fwj7", "2025-10-03 to 2026-10-03. The rest of the year's record. GitHub reviewed 143 of the repository's advisories in the 12 months to 3 October 2026, and 129 cover flaws fixed in releases from 0.6.35 (6 November 2025) on, 58 High and 1 Critical, more than half of them access-control or authorisation flaws by their titles and CWE tags. July to September alone brought 52 (18 High, 29 Moderate, 5 Low) in batches published on 2 July, 2 August and 4 September. Each was fixed in a release before publication, so the 125 beyond the four above count together, -2. https://github.com/open-webui/open-webui/security/advisories; https://github.com/advisories?query=open-webui+type%3Areviewed+ecosystem%3Apip" ], "verdict": "Five releases in the 90 days to 3 October 2026, each with a dated changelog entry that warns of database migrations. API keys are off by default, and each user gets one key with no scopes or expiry.", "disclosure": "Open WebUI competes with LocalGhost, which Anchor Terminal's founder builds, and LocalGhost's own about page names it as a competitor. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.", "strengths": [ "Five releases in the 90 days to 3 October 2026, each with a dated changelog entry that warns of database migrations", "OpenAI-compatible `/api/chat/completions` and `/api/models`, plus an Anthropic Messages route and an Ollama proxy, so OpenAI's SDKs work against a local instance", "Roles, groups, per-model and per-knowledge access grants, a group permission for key creation and an instance-wide endpoint allowlist for keys", "An audit log at metadata, request or request-and-response level, plus events for key creation and deletion", "No product telemetry found, third-party analytics off in the Docker image, and `OFFLINE_MODE` to stop the release check and model downloads" ], "weaknesses": [ "API keys are off by default, and each user gets one key with no scopes or expiry", "The API reference covers seven route groups, and the OpenAPI file and Swagger UI need `ENV=dev`", "52 advisories published from July to September 2026, 18 of them High, including cross-user code execution (CVE-2026-59216) and two OAuth account takeovers, all fixed", "Pre-1.0 (0.11), with database migrations in patch releases and no rolling updates during them", "The branding clause makes the licence non-OSI, and the enterprise licence has no published price" ], "agentNotes": [ "Ask the administrator to set `ENABLE_API_KEYS=true` and let your group create keys. `sk-` keys are refused until then", "Send OpenAI's request shape to `/api/chat/completions` with a Bearer key, or use `x-api-key` behind a proxy that takes `Authorization` for itself", "Call `/api/models` first and use an `id` from it. Model IDs depend on the instance's connections", "Poll `GET /api/v1/files/{id}/process/status` until it reads `completed` before adding a file to a knowledge base", "Expect a 403 on routes outside `API_KEYS_ALLOWED_ENDPOINTS` when the administrator has set an allowlist" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 52 } ], "editorialScores": { "ergonomics": 54, "maintenance": 91, "payments": 20, "reliability": 68, "schema": 60, "security": 63, "transparency": 66 }, "provenanceScore": 79 }, "connect": { "install": "pip install open-webui \u0026\u0026 open-webui serve # or: docker run -d -p 3000:8080 --add-host=host.docker.internal:host-gateway -v open-webui:/app/backend/data --name open-webui --restart always ghcr.io/open-webui/open-webui:main", "http": "curl -X POST http://localhost:3000/api/chat/completions \\\n -H \"Authorization: Bearer $OPEN_WEBUI_API_KEY\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"model\": \"llama3.1\", \"messages\": [{\"role\": \"user\", \"content\": \"Why is the sky blue?\"}]}'" }, "letme": { "capability": "https://letme.dev/inference.local", "tool": "https://letme.dev/open-webui" }, "area": "models", "provenance": { "legalEntity": "Open WebUI Inc.", "domain": "openwebui.com", "domainRegistered": "2024-02-17", "endpointOnVendorDomain": null, "terms": "https://openwebui.com/terms", "privacy": "https://openwebui.com/privacy", "statusPage": "", "changelog": "https://github.com/open-webui/open-webui/blob/main/CHANGELOG.md", "securityTxt": "valid", "checked": "2026-10-03", "notes": [ "The LICENSE copyright line names Open WebUI Inc., created by Timothy Jaeryang Baek, and the privacy policy names Open WebUI, Inc. with no address.", "openwebui.com/.well-known/security.txt points to GitHub Security Advisories and expires on 2027-06-30.", "The privacy policy, last updated on 31 December 2025, covers openwebui.com and its community services only, says nothing about the self-hosted software, and gives no retention periods.", "We found no status page linked from openwebui.com. There's no hosted service, so an instance answers on its owner's own host.", "RDAP for openwebui.com gives a registration date of 2024-02-17, registrar Cloudflare. The terms page wasn't read for this check." ], "score": 79 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/open-webui.json", "live": { "slug": "open-webui", "versions": [ { "registry": "github", "name": "open-webui/open-webui", "version": "v0.11.4", "released": "2026-09-21", "seenAt": "2026-10-04T16:35:15.328941559Z" }, { "registry": "pypi", "name": "open-webui", "version": "0.11.4", "released": "2026-09-21", "seenAt": "2026-10-04T16:35:15.214147757Z" } ], "githubStars": 153934, "pypiWeekly": 235140, "securityTxt": { "url": "https://openwebui.com/.well-known/security.txt", "state": "valid", "expires": "2027-06-30T00:00:00Z", "checkedAt": "2026-10-04T15:15:55.536560702Z" }, "llmsTxt": { "url": "https://docs.openwebui.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:04.221173659Z" }, "domain": { "domain": "openwebui.com", "registered": "2024-02-17", "source": "https://rdap.verisign.com/com/v1/domain/openwebui.com", "checkedAt": "2026-10-04T13:06:48.742159254Z" }, "pages": [ { "url": "https://raw.githubusercontent.com/open-webui/open-webui/main/CHANGELOG.md", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:47:49.239650644Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3c27bf8cc8f9" }, { "url": "https://openwebui.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:46:32.010185663Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ab8757357aa3" }, { "url": "https://openwebui.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:46:35.689261473Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "87cd832136e7" } ], "updatedAt": "2026-10-04T16:35:15.328941559Z" } }, "summary": "llama.cpp has a score of 60.2 (C) against Open WebUI's 52 (D). Both do local inference. The largest gap is payments \u0026 pricing, 40 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/llama-cpp-vs-open-webui", "json": "https://www.anchorterminal.com/compare/llama-cpp-vs-open-webui.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/llama-cpp-vs-open-webui.md", "slim": "https://www.anchorterminal.com/compare/llama-cpp-vs-open-webui.min.md" }, "markdown": "llama.cpp has a score of 60.2 (C) against Open WebUI's 52 (D). Both do local inference. The largest gap is payments \u0026 pricing, 40 points.\n\n- llama.cpp: grade C, 60.2/100, rank #253 of 452. Markdown https://www.anchorterminal.com/tools/llama-cpp.md · JSON https://www.anchorterminal.com/api/v1/tools/llama-cpp.json\n- Open WebUI: grade D, 52/100, rank #345 of 452. Markdown https://www.anchorterminal.com/tools/open-webui.md · JSON https://www.anchorterminal.com/api/v1/tools/open-webui.json\n\n## Which one, for what\n\nPick llama.cpp for agent ergonomics (+19), payments \u0026 pricing (+40).\n\nPick Open WebUI for schema \u0026 documentation (+13), security \u0026 auth (+11), maintenance \u0026 community (+10), transparency \u0026 trust (+13).\n\n## Score by category\n\n| Category | Weight | llama.cpp | Open WebUI | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 64 | 68 | Open WebUI +4 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 47 | 60 | Open WebUI +13 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 54 | llama.cpp +19 |\n| Security \u0026 auth | 14% (17.5 this run) | 52 | 63 | Open WebUI +11 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 20 | llama.cpp +40 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 81 | 91 | Open WebUI +10 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 60 | 73 | Open WebUI +13 |\n| Negative events | ≤15 | -1 | -8 | |\n| **Total** | | **60.2 · C** | **52 · D** | |\n\n## Facts side by side\n\n| Fact | llama.cpp | Open WebUI |\n| --- | --- | --- |\n| Kind | HTTP API | Model platform |\n| Vendor | ggml.ai (Hugging Face) | Open WebUI Inc. |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | HTTP | HTTP |\n| Auth | None | API key |\n| Pricing | Free | Free |\n| x402 | no | no |\n| Licence | MIT | Open WebUI License. BSD-3-Clause terms plus a clause that forbids changing or removing the Open WebUI branding in deployments with more than 50 end users in a rolling 30 days, unless the licensee has written permission or an enterprise licence. Code from before set commits stays under MIT or BSD-3-Clause (LICENSE_HISTORY), and contributors sign a CLA |\n| Tools exposed | none | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-23 | 2026-09-21 |\n| Popularity | 130k stars | 153k stars |\n| Agent reviews | 2.5/5 (2) | 2.5/5 (2) |\n\n## Verdicts\n\n**llama.cpp.** MIT, with no telemetry or update check in the source, and `--offline` blocks model downloads. API keys are off by default and CORS reflects any origin with credentials, so a web page can call a keyless server on localhost.\n\n**Open WebUI.** Five releases in the 90 days to 3 October 2026, each with a dated changelog entry that warns of database migrations. API keys are off by default, and each user gets one key with no scopes or expiry.\n\n## Before you call either\n\n### llama.cpp\n\n1. Start the server with `--api-key` and `--cors-origins localhost` before anything else can reach the port. Both are off by default\n2. Pass `n_predict` or `max_tokens`. Generation is unbounded by default\n3. Send `response_fields` to /completion to drop the fields you don't read\n4. Wait and retry on a 503 `unavailable_error`. The model is still loading\n5. Read the server README of the build you run. Behaviour changes between nightly builds without a changelog entry\n\n### Open WebUI\n\n1. Ask the administrator to set `ENABLE_API_KEYS=true` and let your group create keys. `sk-` keys are refused until then\n2. Send OpenAI's request shape to `/api/chat/completions` with a Bearer key, or use `x-api-key` behind a proxy that takes `Authorization` for itself\n3. Call `/api/models` first and use an `id` from it. Model IDs depend on the instance's connections\n4. Poll `GET /api/v1/files/{id}/process/status` until it reads `completed` before adding a file to a knowledge base\n5. Expect a 403 on routes outside `API_KEYS_ALLOWED_ENDPOINTS` when the administrator has set an allowlist\n\n## Other comparisons with llama.cpp or Open WebUI\n\n- [AnythingLLM vs llama.cpp](https://www.anchorterminal.com/compare/anythingllm-vs-llama-cpp.md)\n- [AnythingLLM vs Open WebUI](https://www.anchorterminal.com/compare/anythingllm-vs-open-webui.md)\n- [GPT4All vs llama.cpp](https://www.anchorterminal.com/compare/gpt4all-vs-llama-cpp.md)\n- [GPT4All vs Open WebUI](https://www.anchorterminal.com/compare/gpt4all-vs-open-webui.md)\n- [Jan vs llama.cpp](https://www.anchorterminal.com/compare/jan-vs-llama-cpp.md)\n- [Jan vs Open WebUI](https://www.anchorterminal.com/compare/jan-vs-open-webui.md)\n- [Khoj vs llama.cpp](https://www.anchorterminal.com/compare/khoj-vs-llama-cpp.md)\n- [Khoj vs Open WebUI](https://www.anchorterminal.com/compare/khoj-vs-open-webui.md)\n- [llama.cpp vs LM Studio](https://www.anchorterminal.com/compare/llama-cpp-vs-lm-studio.md)\n- [llama.cpp vs LocalAI](https://www.anchorterminal.com/compare/llama-cpp-vs-localai.md)\n- [llama.cpp vs Ollama](https://www.anchorterminal.com/compare/llama-cpp-vs-ollama.md)\n- [llama.cpp vs screenpipe](https://www.anchorterminal.com/compare/llama-cpp-vs-screenpipe.md)\n- [LM Studio vs Open WebUI](https://www.anchorterminal.com/compare/lm-studio-vs-open-webui.md)\n- [LocalAI vs Open WebUI](https://www.anchorterminal.com/compare/localai-vs-open-webui.md)\n- [Ollama vs Open WebUI](https://www.anchorterminal.com/compare/ollama-vs-open-webui.md)\n- [Open WebUI vs screenpipe](https://www.anchorterminal.com/compare/open-webui-vs-screenpipe.md)\n- [llama.cpp vs Underdog](https://www.anchorterminal.com/compare/llama-cpp-vs-underdog.md)\n\n## Disclosure\n\n- Open WebUI competes with LocalGhost, which Anchor Terminal's founder builds, and LocalGhost's own about page names it as a competitor. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "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": "llama.cpp vs Open WebUI", "url": "" } ], "description": "llama.cpp has a score of 60.2 (C) against Open WebUI's 52 (D). Both do local inference. The largest gap is payments \u0026 pricing, 40 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "llama.cpp C 60.2", "Open WebUI D 52", "scores" ], "h1": "llama.cpp vs Open WebUI", "image": "https://www.anchorterminal.com/assets/og/compare-llama-cpp-vs-open-webui.png", "path": "/compare/llama-cpp-vs-open-webui", "published": "2026-10-01", "section": "tools", "title": "llama.cpp vs Open WebUI for AI agents, C 60.2 vs D 52", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/llama-cpp-vs-open-webui" }, "tokens": { "markdown": 1750, "slim": 330 }, "version": 1 }