Fallom

Fallom is the AI-native observability platform engineered for the new frontier of software: Large Language Model (LLM) and autonomous agent workloads. As enterprises rush to integrate generative AI into their core products, they're hitting a critical visibility wall. Traditional APM tools fall short, leaving teams flying blind on cost, performance, and compliance. Fallom shatters that barrier. It provides real-time, granular visibility into every single LLM call in production, delivering end-to-end tracing that captures prompts, outputs, tool calls, tokens, latency, and per-call costs. Built with enterprise-scale and regulatory rigor in mind, it adds crucial session, user, and customer-level context, transforming fragmented API calls into a coherent narrative of AI interactions. With its OpenTelemetry-native SDK, teams can instrument their entire AI stack in minutes, not months. Fallom is the definitive tool for engineering and product teams who need to monitor usage live, debug complex agentic workflows, attribute costs accurately, and maintain robust audit trails for frameworks like GDPR and the EU AI Act. It's not just monitoring; it's the command center for reliable, compliant, and cost-effective AI operations.

End-to-End LLM Tracing & Live Dashboard

Gain real-time, granular visibility into every AI interaction. Fallom's live dashboard shows a streaming feed of all LLM calls, capturing the full context: the exact input prompt, the model used, token counts, latency, and calculated cost. You can click into any trace to see the complete chain, including intermediate steps and tool calls. This instant, detailed observability is critical for spotting anomalies, understanding user behavior, and ensuring your AI features are performing as expected in the wild.

Enterprise Compliance & Audit Trails

Navigate the complex landscape of AI regulation with confidence. Fallom is built for compliance, offering immutable, complete audit trails of every LLM interaction. This includes full input/output logging, model versioning, and user consent tracking—essential for adhering to the EU AI Act, GDPR, and SOC 2 requirements. A dedicated Privacy Mode allows you to disable content capture for sensitive data, maintaining full telemetry while protecting user privacy and confidential information.

Advanced Cost Attribution & Analytics

Take control of your spiraling AI spend. Fallom automatically attributes costs across every dimension: per model, per user, per team, and per customer. The platform provides clear dashboards and breakdowns, showing exactly where your budget is going. This enables precise budgeting, internal chargeback, and data-driven decisions on model selection, helping you optimize for both cost and performance without any financial blind spots.

Timing Waterfalls & Tool Call Visibility

Debug the performance of multi-step AI agents with surgical precision. Fallom's timing waterfall visualizations break down the latency of each step in an agent's workflow, instantly pinpointing whether delays are in LLM calls, tool executions (like database queries or API calls), or your own code. Combined with full visibility into every tool call's arguments and results, you can quickly identify and resolve bottlenecks that impact user experience.

Monitoring and Debugging Production AI Agents

When your customer-facing AI agent starts behaving oddly or timing out, you need answers fast. Fallom provides the complete picture, allowing you to trace a user's failed session end-to-end. See the exact prompts that led to an error, inspect the arguments passed to a faulty tool call, and analyze latency waterfalls to find the slow step. This turns hours of guesswork into minutes of targeted debugging, ensuring high reliability for your AI-powered features.

Ensuring Regulatory Compliance for AI Products

For companies in finance, healthcare, or any regulated industry, deploying AI comes with heavy compliance burdens. Fallom acts as your audit engine, automatically generating the required logs for every LLM interaction. You can prove which model version generated a specific output, demonstrate that user consent was captured, and maintain privacy-mode logs for sensitive operations, making audits for the EU AI Act or GDPR a streamlined process.

Controlling and Optimizing LLM Spend

With AI costs becoming a major line item, finance and engineering teams need transparency. Fallom answers critical questions: Is Team A's experimental feature burning budget on GPT-4? Which customer is the most expensive to serve? By providing detailed, attribute-level cost reporting, Fallom enables showback/chargeback models, helps teams choose cost-effective models for specific tasks, and identifies wasteful patterns before they impact the bottom line.

Performance Optimization and Model A/B Testing

Before rolling out a new, faster model like Claude 3.5 Sonnet, you need confidence it won't break things. Fallom's built-in A/B testing framework lets you safely split traffic between models, comparing their performance, cost, and output quality (via integrated evaluations) in real-time. Combined with timing waterfalls, you can validate latency improvements and switch traffic with confidence, ensuring continuous performance enhancement.

How does Fallom integrate with my existing AI stack?

Fallom is built on OpenTelemetry, the open standard for observability. Integration is simple: add Fallom's single, lightweight SDK to your application. It automatically instruments calls to all major LLM providers (OpenAI, Anthropic, Google, etc.) and custom agents without vendor lock-in. You can be tracing live calls in under 5 minutes, with no changes to your core application logic.

How does Fallom handle sensitive or private user data?

Security and privacy are paramount. Fallom offers a configurable Privacy Mode. When enabled, you can choose to redact specific data fields, log only metadata (like token counts and latency), or disable content capture entirely for sensitive environments. This ensures you maintain full observability for performance and cost while complying with strict data protection policies.

Can I use Fallom to test and evaluate my LLM prompts?

Absolutely. Fallom includes a Prompt Store for versioning and managing your prompts. You can A/B test different prompt variations directly within the platform, deploying winning versions instantly. Furthermore, you can run automated evaluations (for accuracy, relevance, hallucination rates, etc.) on LLM outputs to catch regressions before they reach production users.

Is Fallom suitable for small startups or only large enterprises?

Fallom is built to scale from fast-moving startups to global enterprises. It offers a free tier to get started, which is perfect for small teams to gain immediate visibility. As your AI usage grows, its enterprise features—like advanced cost attribution, session tracking, and compliance tooling—become essential for managing complexity, cost, and risk at scale.