Fiddler AI vs Guild.ai
Relationship
Fiddler AI Governance, Risk Management, and Compliance and Guild agent control plane both list guardrails and safety; both also serve buyers who need to watch an AI agent for suspicious or runaway behaviour; scale not recorded for either.
Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.
3 shared capabilities — Across all their products, both list agent orchestration, evaluation and observability and guardrails and safety.
Ludbee capability tags · every product each company sellsShared product type — Both ship developer tool.
Ludbee product recordsAligned comparison
Capability overlap
Shared · 3
Not verified for Fiddler AI · 1
Recorded for Guild.ai. Fiddler AI’s product records say nothing either way — a missing record is not a missing capability.
Fiddler AI has no capability Guild.ai lacks, among the 3 recorded here.
Products, side by side
Algorithmic pairing — assembled from recorded fields, not hand-checked
Fiddler AI
Developer tool
Source-available library for red-teaming and robustness testing of LLMs, run independently of the hosted Fiddler platform. Fiddler's own page calls it "open-source"; its repository's actual licence is the Elastic License 2.0, which is not an OSI-approved open-source licence (it restricts offering the software as a competing hosted service), so it is recorded here by its real terms rather than the vendor's label.
Guild.ai
Developer tool
Agents that plan, build, test and review bounded engineering tasks from issues and hand engineers validated pull requests, running on the Guild control plane; humans approve and merge.
No counterpart
Fiddler AI sells these in a stack layer with no product recorded for Guild.ai yet — nothing on the other side to compare them against.
Application
Governance module within the Fiddler AI Control Plane providing model inventories, policy enforcement and audit-ready reporting for regulatory compliance (e.g. EU AI Act) across an organization's AI systems.
Tracing and monitoring module for multi-step agent workflows within the Fiddler AI Control Plane, tracking tool calls, reasoning steps and failures across an agent's execution.
Ongoing automated evaluation module within the Fiddler AI Control Plane that re-scores production LLM/agent outputs against quality and safety metrics over time, not just at launch.
Runtime safety layer within the Fiddler AI Control Plane that screens LLM/agent inputs and outputs for hallucination, toxicity, PII and jailbreak attempts before they reach users.
Platform
AI observability platform: evaluation, monitoring and real-time guardrails for ML models and generative AI/agentic applications in production.
Guild.ai sells these in a stack layer with no product recorded for Fiddler AI yet — nothing on the other side to compare them against.
Agent platform
Vendor-neutral control plane to deploy, run, monitor and govern AI agents built in any framework, with an MCP Gateway for tool and model access, AI Observability, AI Governance, token monitoring and an Optimizer.