Galileo
Galileo Evaluate / Observe / Protect — eval, tracing, guardrails; hallucination detection and ChainPoll metric. Acquired by Cisco in 2026 and now sold as Splunk Agent Observability.
Acquired · Verified 2026-10-28 · fresh as of 2026-10-28 · 22 cited facts, 4 with a third-party source · 2 recorded changes · Suggest a correction
At a glance
- Type
- Eval + observability + guardrails vendor fix
- Tier
- T1
- Latest release
- v2.7.0 (2026-10-14) — galileo registry fix
- License
- proprietary; Python SDK Apache-2.0 repo fix
- Pricing
- Splunk Agent Observability from $100/mo per 1.2M spans billed annually (includes 500M Luna tokens); free edition available third-party fix
- Funding
- $45M Series B Oct-2024 (Scale Venture Partners led); acquired by Cisco (announced 2026-04-09, completed by 2026-05-22) third-party fix
- Freshness
- 2026-10-28 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial repo fix
- SDK languages
- python, rest, typescript vendor fix
- Protocols
- mcp-server, opentelemetry vendor fix
- Developer activity
- OpenRank 0.74 (12-mo avg 7.3) · 1 participants — 2026-09 third-party fix
When to use
Optimised for: searched not found
Anti-fit: searched not found
Pros & cons
Pros
searched not found
Cons
searched not found
Claims & capabilities
$45M Series B 2024-10 (Scale Ventures led); $100M total.
Technical surface
- API surface
- searched not found
- Backend storage
- not applicable — not a memory product
- Deployment
- Both (self-hosted + managed cloud) — SaaS, VPC or on-premises
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- searched not found
- MCP
- yes — Agent Evals MCP server for IDEs such as Cursor and VS Code
- A2A
- searched not found
- OpenTelemetry
- searched not found
Compare Galileo with…
Similar systems
Other evaluation & observability platforms in the catalog, ranked by inbound references.
- Arize Phoenix T1
Arize AI's open-source LLM observability tool — OpenTelemetry-native LLM tracing, evals, datasets. Arize commercial offers Phoenix + Surveyor.
- Arize AI T1
Production ML monitoring + LLM observability (Arize AX) — drift, eval, root-cause. Pre-LLM observability leader; now LLM-pivoted.
- Braintrust T1
Eval-first LLM platform — datasets, eval runs, prompt playground, tracing. Founded by ex-Impira (acquired by Dropbox) team. Used by Notion, Brex, AirOps.
- Confident AI / DeepEval T2
Open-source DeepEval framework + Confident AI cloud — pytest-style eval runs, hallucination/relevance/bias metrics, datasets.
- OpenLLMetry (Traceloop) T2
Traceloop's open-source OpenTelemetry auto-instrumentation for LLM workflows — works with any OTel-compatible backend (Datadog, New Relic, Grafana, etc.).
- Helicone T2
Open-source LLM observability and AI gateway — one-line proxy integration captures every LLM call; sessions, custom properties, evals. Acquired by Mintlify in Mar 2026 and placed in maintenance mode; helicone.ai now states it is no longer part of Mintlify.
Sources (21 cited facts, 4 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Eval + observability + guardrails vendor
- What it does & what's distinct Galileo Evaluate / Observe / Protect — eval, tracing, guardrails; hallucination detectio… third-party
- Claims / benefits $45M Series B 2024-10 (Scale Ventures led); $100M total. vendor
- Created 2021 vendor
- Latest release v2.7.0 (2026-10-14) — galileo registry
- License proprietary; Python SDK Apache-2.0 repo
- GitHub rungalileo/galileo-python — ~22 stars, last commit 2026-10 repo
- Funding $45M Series B Oct-2024 (Scale Venture Partners led); acquired by Cisco (announced 2026-0… third-party
- Customers / scale Comcast, JPMorgan, Twilio, ServiceNow, Reddit, Bath & Body Works; enterprise LLM eval/ob… vendor
- Pricing Splunk Agent Observability from $100/mo per 1.2M spans billed annually (includes 500M Lu… third-party
- Deployment Both (self-hosted + managed cloud) — SaaS, VPC or on-premises vendor
- HQ US (SF) vendor
- Founders / pedigree Vikram Chatterji (CEO; ex-Google AI), Atindriyo Sanyal, Yash Sheth; founded 2021. vendor
- MCP support yes — Agent Evals MCP server for IDEs such as Cursor and VS Code vendor
- architecture-deployment-locus cloud vendor
- licensing-bucket commercial repo
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup agent-infra repo
- developer-activity-opendigger {"activity":4.7,"as_of":"2026-09","openrank_12mo":7.3,"openrank_current":0.74,"participa… third-party
- sdk-languages python,rest,typescript vendor
- protocol-support mcp-server,opentelemetry vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-28
- Funding / ownership “$45M Series B Oct-2024 (Scale Venture Partners led); acquired by Cisco 2026” → “$45M Series B Oct-2024 (Scale Venture Partners led); acquired by Cisco (announced 2026-04-09, completed by 2026-05-22)” source
- 2026-10-27
- License first recorded as “proprietary; Python SDK Apache-2.0” source
- Latest release first recorded as “v2.7.0 (2026-10-14) — galileo” source
- Pricing first recorded as “Splunk Agent Observability from $100/mo per 1.2M spans billed annually (includes 500M Luna tokens); free edition available” source
- Funding / ownership “$87.6M total raised through Series B 2024-06 ($45M, Scale Venture Partners led).” → “$45M Series B Oct-2024 (Scale Venture Partners led); acquired by Cisco 2026” source
- Deployment first recorded as “Both (self-hosted + managed cloud) — SaaS, VPC or on-premises” source
- MCP support first recorded as “yes — Agent Evals MCP server for IDEs such as Cursor and VS Code” source
Related systems
References (12)
- Agent2Agent Protocol (A2A) integrates with — Galileo's third-party integrations docs list Agent2Agent Protocol (A2A) as a supported integration. (verified 2026-10-29)
- CrewAI integrates with — Galileo's third-party integrations docs list CrewAI as a supported integration. (verified 2026-10-29)
- Google Agent Development Kit (ADK) integrates with — Galileo's third-party integrations docs list Google Agent Development Kit (ADK) as a supported integration. (verified 2026-10-29)
- LangChain (framework) integrates with — Galileo's third-party integrations docs list LangChain (framework) as a supported integration. (verified 2026-10-29)
- LangGraph (orchestration) integrates with — Galileo's third-party integrations docs list LangGraph (orchestration) as a supported integration. (verified 2026-10-29)
- Mastra integrates with — Galileo's third-party integrations docs list Mastra as a supported integration. (verified 2026-10-29)
- Microsoft Agent Framework integrates with — Galileo's third-party integrations docs list Microsoft Agent Framework as a supported integration. (verified 2026-10-29)
- OpenAI Agents SDK integrates with — Galileo's third-party integrations docs list OpenAI Agents SDK as a supported integration. (verified 2026-10-29)
- OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) integrates with — Galileo's third-party integrations docs list OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) as a supported integration. (verified 2026-10-29)
- Pydantic-AI integrates with — Galileo's third-party integrations docs list Pydantic-AI as a supported integration. (verified 2026-10-29)
- Strands Agents (AWS) integrates with — Galileo's third-party integrations docs list Strands Agents (AWS) as a supported integration. (verified 2026-10-29)
- Vercel AI SDK integrates with — Galileo's third-party integrations docs list Vercel AI SDK as a supported integration. (verified 2026-10-29)
Referenced by (3)
- CrewAI integrates with — CrewAI docs have a Galileo observability integration page. (verified 2026-10-29)
- Google Agent Development Kit (ADK) integrates with — ADK integrations catalog has a "Agent Observability and Evaluation with Galileo" page (End-to-end tracing, evaluation, and monitoring for ADK agents). (verified 2026-10-29)
- OpenAI Agents SDK integrates with — OpenAI Agents SDK tracing docs list Galileo under external tracing processors. (verified 2026-10-29)