G

Galileo

Infrastructure

AI evaluation and observability platform for evaluating, monitoring and guardrailing GenAI applications and agents in production. Acquired by Cisco, 2026-05, folded into Splunk Observability's AI Agent Monitoring; continues to ship under its own name.

Acquired by Cisco (2026)

Total funding$68M

Valuation—

Employees—

Founded2021

HeadquartersSan Francisco, USA

StatusAcquired

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Galileo Platform Sold on its own

  AI evaluation and observability platform: automated evals, real-time guardrails, and production monitoring across the agent development lifecycle.

Inside Galileo

• Galileo Signals API service Included with the parent

  Real-time monitoring layer within the Galileo platform that computes evaluation metrics (hallucination, groundedness, tone) as signals on live production traffic, feeding alerts and dashboards.

Closest alternatives 2

BBraintrustPrivate · $125M raisedGalileo's own comparison page.1 of 1 capabilityShared product typeSourced competitorBuild and run AI agentsCompareAAArize AIPrivateGalileo's own comparison post frames the buyer choice as prevention (Galileo) versus after-the-fact detection (Arize) for the same observability job.1 of 1 capabilityShared product typeSourced competitorBuild and run AI agentsCompare

Similar products 19

How this list is ranked ↗

FAFiddler AIPrivate · $100M raisedGalileo and Fiddler AI both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareAAArthur AIPrivate · $62.7M raisedGalileo and Arthur both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareCMComet MLPrivate · $70M raisedGalileo and Comet Model Production Monitoring both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareDDeepchecksAbsorbedGalileo and Deepchecks LLM Evaluation both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale; Deepchecks is absorbed, with no independent scale.1 of 1 capabilityShared product typeCompareHHeliconeAcquiredGalileo and Helicone both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; both acquired, so no independent scale on either side.1 of 1 capabilityShared product typeCompareLLangfuseAcquiredGalileo and Langfuse both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; both acquired, so no independent scale on either side.1 of 1 capabilityShared product typeCompareCClickHousePrivate · $1.1B raisedGalileo and ClickStack both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareLLangChainPrivate · $160M raisedGalileo and LangSmith both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareW&Weights & BiasesAcquiredOverlaps on evaluation and observability; both acquired, so no independent scale on either side.1 of 1 capabilityShared product typeCompareSSplunkAcquiredGalileo and Splunk Observability Cloud both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; both acquired, so no independent scale on either side.1 of 1 capabilityShared product typeCompareEElasticPublic · $10.2BGalileo Signals and Elastic LLM Observability both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareHAHume AIPrivateGalileo and Kairos Platform both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale; Hume AI's scale not recorded.1 of 1 capabilityShared product typeCompareCCoreWeavePublic · $48.5BGalileo and CoreWeave ARIA both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareDDatabricksPrivate · $190BGalileo Signals and Agent Bricks both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompareDDatadogPublic · $84.9BGalileo and Agent Observability both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale; ships AI agent, agent platform and 2 more rather than the same layer.1 of 1 capabilityDifferent layerCompareCCognigyAcquiredGalileo and Cognigy AI Ops Center both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; both acquired, so no independent scale on either side.1 of 1 capabilityShared product typeCompareBByteDancePrivateGalileo and Coze Loop both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale; ByteDance's scale not recorded.1 of 1 capabilityShared product typeCompareMMercorPrivate · $20BGalileo and Mercor Enterprise Evals both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale; ships data service rather than the same layer.1 of 1 capabilityDifferent layerCompareMMicrosoftPublic · $3.7TGalileo Signals and Observability in Foundry Control Plane both serve buyers who need to watch an AI agent for suspicious or runaway behaviour; Galileo is acquired, with no independent scale.1 of 1 capabilityShared product typeCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Press release · 15 Oct 2024

Same release states the $45M Series B "bringing the company's total funding to $68M" -- a stated cumulative total, not just the round (contrast arize-ai's PR Newswire release, which states only the round).

Founded

Official documentation · 9 Sep 2026

Galileo's own About page: "Galileo was founded in 2021 to pursue a vision of AI reliability." Corroborated by the company's own Series B press release (Oct 2024): "We started Galileo three years ago to solve AI's measurement problem."

Status

Official documentation · 28 May 2026

Splunk's own blog (2026-05-28): "Cisco has completed its acquisition of Galileo", with Galileo's technology "integrated into Splunk Observability's AI Agent Monitoring." Cisco's own announcement (2026-04-09, blogs.cisco.com) named the target "Galileo Technologies, Inc.", confirmed as this company by its own description of the business (AI observability/evaluation). galileo.ai's own live site (fetched 2026-09-09) still markets independently with no Cisco/Splunk mention and no wind-down language, unlike Helicone -- treated as continuing under its own name, same as weights-and-biases and langfuse, not merged into Cisco's or Splunk's own record.

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