Silent latency spikes
A 500ms delay in time to first token can make an AI feature feel broken, even when the API technically succeeds.
OUTSIDE-IN MONITORING FOR AI APIS
ProbeGrid measures real-world LLM API latency, throughput, errors, and regional degradation across providers, models, and cloud regions.
Track time to first token, token throughput, timeout rates, and silent brownouts before they reach your users.
Built for platform teams, AI-native SaaS companies, and engineering leaders running production LLM workflows.
| Provider | Model | Region | Trend | TTFT p95 | Status |
|---|---|---|---|---|---|
| OpenAIgpt-4o-mini | gpt-4o-mini | us-east-1 | 812ms | Normal | |
| Anthropicclaude-sonnet | claude-sonnet | us-east-1 | 1.4s | Elevated | |
| Googlegemini-flash | gemini-flash | eu-west-1 | 940ms | Normal | |
| Azure OpenAIgpt-4o-mini | gpt-4o-mini | eastus | 3.8s | Degraded | |
| Bedrockllama-3.1 | llama-3.1 | us-west-2 | 1.1s | Normal |
TTFT p95 increased 4.6x for 17 minutes. Control latency stable. Provider status: no incident reported.
A provider can be up while your product feels slow. First-token latency can spike. Streaming throughput can drop. One region can silently degrade while another looks healthy.
Provider status pages are useful, but they are often too coarse for production AI systems. ProbeGrid gives teams independent visibility into the performance of the AI APIs their products depend on.
A 500ms delay in time to first token can make an AI feature feel broken, even when the API technically succeeds.
Your users in one geography may see degraded performance while another region looks healthy.
Provider dashboards rarely expose the model, region, and routing behavior that affects your actual user experience.
Traditional uptime checks are not enough for AI. ProbeGrid tracks the moments that determine whether an AI workflow feels instant, sluggish, or broken.
How long before the response feels alive.
How quickly the model streams after generation begins.
End-to-end latency for complete responses.
Failures, API errors, malformed streams, and timeout behavior.
How performance changes across cloud regions and user geographies.
Observed degradation compared with provider-reported incidents.
ProbeGrid runs fixed LLM workloads from independent cloud regions on a continuous schedule, then turns noisy telemetry into degradation windows, provider comparisons, and routing signals.
ProbeGrid runs fixed LLM workloads from independent cloud regions on a continuous schedule.
Each request captures TTFT, throughput, total latency, errors, response validation, and control endpoint timing.
ProbeGrid turns telemetry into degradation windows, provider comparisons, and routing signals.
Control requests help separate local network noise from upstream AI provider behavior.
ProbeGrid helps platform, product, and infrastructure teams monitor the LLM APIs behind production features, agents, and internal workflows.
Know when customer-facing latency comes from your app, your provider, or a regional infrastructure issue.
Monitor the LLM APIs behind internal tools, agents, support workflows, and production features.
Use independent telemetry to separate provider degradation from your own systems during incidents.
Compare providers by real-world latency, throughput, and reliability before shifting traffic or signing contracts.
Decide when to route around degraded models, providers, or regions.
Bring external performance data to vendor reviews, SLA discussions, and architecture decisions.
ProbeGrid is designed to compress repeated synthetic measurements into incident-shaped signals your team can use during reliability reviews and vendor decisions.
Azure OpenAI eastus showed a sustained first-token latency regression while control latency and adjacent regions stayed stable.
p95 TTFT increased 4.2x for 22 minutes while control latency remained stable.
Provider B delivered 31% lower p95 TTFT in Western Europe over 24 hours.
East US degraded while West US remained stable. Route latency-sensitive traffic accordingly.
Example data shown for illustrative purposes.
Your logs tell you what happened inside your system. ProbeGrid shows what your AI providers looked like from the outside, across regions, models, and time.
Binary, delayed, and provider-controlled.
Powerful, but limited to your own stack.
Miss streaming behavior, token throughput, and model-level degradation.
Independent, AI-specific, region-aware performance intelligence.
ProbeGrid is currently collecting early telemetry and working with teams that rely on LLM APIs in production. If latency, provider reliability, or multi-provider routing matter to your product, we want to talk.
Request early access