AI Developer Tools

Graphsignal

Graphsignal is a production-scale inference profiling platform that helps engineers optimize AI performance across models, engines, GPUs, and other accelerators.

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Graphsignal

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What is Graphsignal?

Graphsignal is an inference profiler that provides high-resolution timelines, LLM generation tracing, system metrics, and error monitoring for AI inference workloads.

Graphsignal vs Similar AI Tools

Pricing ModelFreeFreeCustom PricingFree, Paid
Free Credits
Key Features
  • Continuous high-resolution profiling timelines
  • LLM generation tracing with per-step timing and token throughput
  • System-level metrics for CPUs, GPUs, and accelerators
  • GitHub Pages hosting
  • Jekyll integration
  • Markdown content support
  • Workload monitoring and anomaly detection
  • Slow query identification and optimization
  • Natural language querying to SQL translation
  • Scans skills and MCP servers against ATR rules before loading
  • Real-time runtime protection against prompt injection and hijacks
  • Signed audit-ready evidence for compliance (EU AI Act, NYDFS, DORA)
Pros
  • Low overhead on production performance
  • Easy integration with major inference frameworks
  • Free hosting with custom domain support
  • Easy setup via Git
  • Quick one-line installation and setup in 15 minutes
  • Self-hosted ensures data stays within your infrastructure
  • Open source with MIT license
  • Real-time detection and prevention
Cons
  • Requires outbound connection to api.graphsignal.com
  • Limited to supported inference frameworks
  • Limited to static content
  • No server-side processing
  • Requires self-hosting and VPC setup
  • No free tier or trial mentioned
  • Enterprise features require paid tiers
  • Setup may require technical expertise
Best For
  • AI engineers optimizing inference performance
  • ML teams monitoring production models
  • Developers
  • Open source projects
  • Database administrators
  • Data engineers
  • Developers building and deploying AI agents
  • Enterprises needing audit-ready AI security

How to use Graphsignal?

  1. 1Sign up for a free account at graphsignal.com and get your API key.
  2. 2Install Graphsignal using uv or pip: 'uv tool install graphsignal[cu12]' or 'pip install graphsignal[cu12]'.
  3. 3Set the GRAPHSIGNAL_API_KEY environment variable.
  4. 4Wrap your launch command with 'graphsignal-run': e.g., 'graphsignal-run vllm serve <model> --port 8001'.
  5. 5Log in to Graphsignal to monitor and analyze your application.

Graphsignal Key Features

  • Continuous high-resolution profiling timelines
  • LLM generation tracing with per-step timing and token throughput
  • System-level metrics for CPUs, GPUs, and accelerators
  • Error monitoring for device-level failures and inference errors
  • Inference telemetry for AI agents

Graphsignal Use Cases

  • Monitor vLLM, PyTorch, and SGLang inference performance
  • Identify bottlenecks in GPU utilization
  • Debug and optimize AI agent inference pipelines

Graphsignal Pricing & Free Credits

Graphsignal currently operates on a Free model.

This tool is completely free to use

Free

$0

Free account with API key access to profiling features

Graphsignal Pros & Cons

Pros

  • Low overhead on production performance
  • Easy integration with major inference frameworks
  • Provides both operation-level and system-level insights

Cons

  • Requires outbound connection to api.graphsignal.com
  • Limited to supported inference frameworks

What is Graphsignal best for?

  • AI engineers optimizing inference performance
  • ML teams monitoring production models
  • Developers building AI agents

Graphsignal FAQ

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