--- title: "Evaluation & Observability" type: "category" slug: "evaluation-observability" canonical_url: "https://www.graphcanon.com/categories/evaluation-observability" tool_count: 437 --- # Evaluation & Observability *GraphCanon updated Oct 12, 2026* Tracing, evaluation, monitoring, and observability for LLM and agent systems — measuring quality, cost, and latency (Langfuse, Phoenix, OpenLIT). 437 tools in this category (showing the top 60 by stars). ## Featured comparisons - [MaxKB vs WeKnora](/compare/1panel-dev-maxkb-vs-tencent-weknora.md) - [activepieces vs coze-loop](/compare/activepieces-activepieces-vs-coze-dev-coze-loop.md) - [gateway vs gateway](/compare/adaline-gateway-vs-portkey-ai-gateway.md) - [AgentGuide vs JavaGuide](/compare/adongwanai-agentguide-vs-snailclimb-javaguide.md) - [ECC vs intellagent](/compare/affaan-m-ecc-vs-plurai-ai-intellagent.md) - [agenta vs coze-loop](/compare/agenta-ai-agenta-vs-coze-dev-coze-loop.md) - [agenta vs paddler](/compare/agenta-ai-agenta-vs-intentee-paddler.md) - [agenta vs langfuse](/compare/agenta-ai-agenta-vs-langfuse-langfuse.md) ## Stacks - [The RAG stack](/stacks/rag-pipeline.md) - [The AI agent stack](/stacks/autonomous-agent.md) ## Tools - [generative-ai-for-beginners](/tools/microsoft-generative-ai-for-beginners.md) - 21 Lessons for Getting Started with Generative AI (★ 120,108) [Very active] - [headroom](/tools/headroomlabs-ai-headroom.md) - Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. (★ 72,850) [Very active] - [LibreChat](/tools/danny-avila-librechat.md) - Enhanced ChatGPT Clone with extensive features and integrations for self-hosting (★ 44,416) [Very active] - [ray](/tools/ray-project-ray.md) - Unified framework for scaling AI and Python applications (★ 43,863) [Very active] - [TrendRadar](/tools/sansan0-trendradar.md) - AI-driven public opinion and trend monitor with multi-platform aggregation, RSS, and smart alerts. (★ 62,357) [Very active] - [langfuse](/tools/langfuse-langfuse.md) - Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform. (★ 34,763) [Very active] - [mlflow](/tools/mlflow-mlflow.md) - Open source AI engineering platform for agents, LLMs, and ML models (★ 28,010) [Very active] - [PageIndex](/tools/vectifyai-pageindex.md) - Document Index for Vectorless, Reasoning-based RAG (★ 35,705) [Very active] - [promptfoo](/tools/promptfoo-promptfoo.md) - Test prompts, agents, and RAGs. Compare performance of various LLMs. (★ 25,251) [Very active] - [opik](/tools/comet-ml-opik.md) - Debug, evaluate, and monitor LLM applications, RAG systems, and agentic workflows (★ 22,110) [Very active] - [CL4R1T4S](/tools/elder-plinius-cl4r1t4s.md) - Leaked system prompts for various AI agents include ChatGPT, Claude, Gemini among others emphasizing transparency and access. (★ 50,062) [Active] - [ai-berkshire](/tools/xbtlin-ai-berkshire.md) - AI-era Berkshire: a value investing research framework utilizing Claude Code / Codex with methodologies from Warren Buffett, Charlie Munger among others and multi-Agent adversarial analysis. (★ 16,451) [Very active] - [Auto-claude-code-research-in-sleep](/tools/wanshuiyin-auto-claude-code-research-in-sleep.md) - Lightweight Markdown-only skills for autonomous ML research (★ 16,383) [Very active] - [txtai](/tools/neuml-txtai.md) - All-in-one AI framework for semantic search, LLM orchestration and language model workflows (★ 12,959) [Very active] - [phoenix](/tools/arize-ai-phoenix.md) - AI Observability & Evaluation (★ 11,528) [Very active] - [iFixAi](/tools/ifixai-ai-ifixai.md) - Tool for evaluating and grading AI models on safety and alignment metrics (★ 15,616) [Very active] - [awesome-LLM-resources](/tools/wangrongsheng-awesome-llm-resources.md) - Summary of the world's best LLM resources. (★ 8,968) [Very active] - [oumi](/tools/oumi-ai-oumi.md) - Easily fine-tune, evaluate and deploy open source LLMs/VLMs (★ 9,387) [Very active] - [pentagi](/tools/vxcontrol-pentagi.md) - Fully autonomous AI Agents system for complex penetration testing tasks (★ 24,769) [Active] - [evolver](/tools/evomap-evolver.md) - The GEP-powered self-evolving engine for AI agents. (★ 9,104) [Very active] - [WeKnora](/tools/tencent-weknora.md) - Open-source LLM knowledge platform for creating a queryable RAG, autonomous reasoning agent, and self-maintaining Wiki. (★ 19,992) [Very active] - [ai-guide](/tools/liyupi-ai-guide.md) - 免费开放的AI知识共享平台 (★ 18,766) [Active] - [AI-Infra-Guard](/tools/tencent-ai-infra-guard.md) - A full-stack AI Red Teaming platform securing AI ecosystems (★ 6,471) [Very active] - [helicone](/tools/helicone-helicone.md) - Open source LLM observability platform (★ 6,162) [Very active] - [coze-loop](/tools/coze-dev-coze-loop.md) - Next-generation AI Agent Optimization Platform (★ 5,739) [Very active] - [ml-engineering](/tools/stas00-ml-engineering.md) - Machine Learning Engineering Open Book (★ 19,009) [Very active] - [deepeval](/tools/confident-ai-deepeval.md) - LLM Evaluation Framework. (★ 18,342) [Very active] - [mcp-context-forge](/tools/ibm-mcp-context-forge.md) - AI Gateway and registry for MCP, A2A, REST/gRPC APIs (★ 4,502) [Very active] - [Awesome-Multimodal-Large-Language-Models](/tools/bradyfu-awesome-multimodal-large-language-models.md) - Latest Advances on Multimodal Large Language Models (★ 18,026) [Very active] - [Kiln](/tools/kiln-ai-kiln.md) - Build, Evaluate, and Optimize AI Systems (★ 5,076) [Very active] - [bisheng](/tools/dataelement-bisheng.md) - BISHENG is an open LLM devops platform for next generation Enterprise AI applications (★ 11,879) [Very active] - [langwatch](/tools/langwatch-langwatch.md) - The platform for LLM evaluations and AI agent testing (★ 4,814) [Very active] - [netdata](/tools/netdata-netdata.md) - The fastest path to AI-powered full stack observability for lean teams (★ 80,598) [Very active] - [mteb](/tools/embeddings-benchmark-mteb.md) - State-of-the-art evaluation of embeddings across languages and modalities (★ 3,427) [Very active] - [giskard-oss](/tools/giskard-ai-giskard-oss.md) - Open-Source Evaluation & Testing library for LLM Agents (★ 5,824) [Very active] - [awesome-chatgpt-zh](/tools/embraceagi-awesome-chatgpt-zh.md) - A comprehensive guide to better utilizing ChatGPT in Chinese. (★ 11,710) [Active] - [aim](/tools/aimhubio-aim.md) - An easy-to-use & supercharged open-source experiment tracker (★ 6,256) [Very active] - [open-swe](/tools/langchain-ai-open-swe.md) - An Open-Source Asynchronous Coding Agent (★ 10,576) [Very active] - [agenta](/tools/agenta-ai-agenta.md) - A workspace for building and orchestrating AI agents and automations. (★ 4,764) [Very active] - [casdoor](/tools/casdoor-casdoor.md) - An open-source Agent-first Identity and Access Management (IAM) / LLM MCP & agent gateway and auth server (★ 14,221) [Very active] - [llm-app](/tools/pathwaycom-llm-app.md) - Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data (★ 58,920) [Steady] - [obsidian-smart-connections](/tools/brianpetro-obsidian-smart-connections.md) - Link building copilot for semantic search within Obsidian notes (★ 5,460) [Very active] - [AgentGuide](/tools/adongwanai-agentguide.md) - AI Agent development guide with job interview preparation (★ 8,484) [Active] - [council-of-high-intelligence](/tools/0xnyk-council-of-high-intelligence.md) - AI personas deliberate decisions across LLM providers (★ 4,327) [Very active] - [academic-research-skills](/tools/imbad0202-academic-research-skills.md) - Workflow for academic research and writing with AI tools (★ 48,777) [Very active] - [superagent](/tools/superagent-ai-superagent.md) - Superagent SDK (★ 6,752) [Active] - [trulens](/tools/truera-trulens.md) - Evaluation and Tracking for LLM Experiments and AI Agents (★ 3,563) [Very active] - [manifest](/tools/mnfst-manifest.md) - Connect Your Agents And Harnesses With Any Provider (★ 7,514) [Very active] - [chinese-llm-benchmark](/tools/jeinlee1991-chinese-llm-benchmark.md) - ReLE评测：中文AI大模型能力评测 (★ 6,467) [Very active] - [OpenMetadata](/tools/open-metadata-openmetadata.md) - Open platform for building trusted data context and business semantics (★ 15,264) [Very active] - [plano](/tools/katanemo-plano.md) - An AI-native proxy and data plane for agentic apps (★ 7,058) [Steady] - [cangjie-skill](/tools/kangarooking-cangjie-skill.md) - Converts high-value content like books into executable Agent Skills (★ 10,340) [Active] - [wandb](/tools/wandb-wandb.md) - Weights & Biases platform for model training and management (★ 11,262) [Very active] - [agent-starter-pack](/tools/googlecloudplatform-agent-starter-pack.md) - Ship AI Agents to Google Cloud in minutes with built-in CI/CD, evaluation, and observability (★ 6,558) [Steady] - [academic-research-skills-codex](/tools/imbad0202-academic-research-skills-codex.md) - Codex-native Academic Research Skills suite for human-in-the-loop academic research workflows (★ 11,256) [Very active] - [VLMEvalKit](/tools/open-compass-vlmevalkit.md) - An open-source evaluation toolkit for large vision-language models (★ 4,345) [Very active] - [AutoRAG](/tools/marker-inc-korea-autorag.md) - Open-source framework for RAG evaluation and optimization via AutoML (★ 5,060) [Very active] - [openllmetry](/tools/traceloop-openllmetry.md) - Open-source observability for GenAI or LLM applications based on OpenTelemetry (★ 7,438) [Very active] - [LLMForEverybody](/tools/luhengshiwo-llmforeverybody.md) - LLM knowledge sharing for everyone, essential reading before big model interviews (★ 7,167) [Very active] - [garak](/tools/nvidia-garak.md) - LLM vulnerability scanner (★ 9,440) [Very active] ## Common questions ### What are the best evaluation & observability tools? GraphCanon ranks Evaluation & Observability tools by GitHub adoption and freshness. generative-ai-for-beginners is the current leader (120,108 stars). See the full list on this page - sorted by stars, with [maintenance labels](/glossary/trust-and-signals/maintenance-label) and graph relationships. ### How does GraphCanon rank Evaluation & Observability tools? We sort by GitHub stars and push recency on category pages, not paid placement. Alternatives and compare pages use [typed graph edges](/glossary/knowledge-graph/typed-edge) (alternative, successor, integrates_with) plus shared categories - constraint-first, not marketing votes. ### How many tools are in Evaluation & Observability? 437 published tools are tagged with Evaluation & Observability in the GraphCanon knowledge graph. ### What are popular Evaluation & Observability comparisons? Head-to-head compare pages in this category include MaxKB vs WeKnora, activepieces vs coze-loop, gateway vs gateway. Each comparison uses live GitHub stats and optional [trust signals](/glossary/trust-and-signals/trust-signal) - see the comparisons block on this page. ### Which stacks use Evaluation & Observability? Curated workflow pages that include Evaluation & Observability: [The RAG stack](/stacks/rag-pipeline); [The AI agent stack](/stacks/autonomous-agent). Each stack step includes when-not-to-use guidance. ### Is there a machine-readable Evaluation & Observability list? Yes. Append `.md` to this URL or fetch [`/md/categories/evaluation-observability`](/md/categories/evaluation-observability) for a markdown twin. The JSON API exposes the same corpus at [`/api/graphcanon/categories/evaluation-observability`](/api/graphcanon/categories/evaluation-observability). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/categories/evaluation-observability`](/api/graphcanon/categories/evaluation-observability) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_