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The one gateway & LLMOps platform to route, govern, observe, and optimize every AI call across 200+ models with zero mark up. FastRouter is an LLM gateway & LLMOps platform for engineering and platform teams running AI in production. It brings model routing, cost controls, observabillity, evaluations, prompt optimization, guardrails, and MCP into one layer — so teams can manage multiple models and providers without building the infrastructure themselves.
👋 Hey Product Hunt! I'm RP, part of the team behind FastRouter.ai.
FastRouter didn't come from a whiteboard brainstorm. It came from living the pain ourselves: watching our own teams (and later, our customers' teams) struggle to run AI in production. Here's our story:
🔥 The Problem
Every team building with LLMs hits the same walls sooner or later:
Flying blind on spend: We'd sit in review meetings where someone would ask "how much did we spend on tokens this month, and on what?" And the honest answer was a shrug. Keys scattered across five providers, five hard-to-navigate cloud dashboards, five versions of the truth.
Finding out too late: Latency would quietly degrade, errors would creep up, spend would accelerate... and we'd learn about it from an angry user or a scary invoice, not always from our tooling.
Overspending with no fix in sight: Even when we knew costs were too high, nothing told us what to change. We were using premium models for tasks a cheaper one handled just as well, re-sending the same prompt prefixes at full price, and paying real-time rates for jobs that could easily wait.
Quality was a guessing game: Without proper evals on real traffic, "is the new model better?" was answered by vibes and a few spot checks. That's no way to ship!
Prompts as tribal knowledge: Our best prompts lived in code, in Slack threads, in someone's head. Never versioned, never optimized!
We got tired of stitching together a dozen tools to answer basic questions. So we built the thing we wished existed: FastRouter.ai, the routing intelligence platform that helped us deliver better AI outcomes.
⚡ The Solution
FastRouter is the fastest routing intelligence gateway + AI ops platform. One API, one dashboard, every major model. Available as SaaS or fully on-prem. And it's working: individual production customers are already saving $10K+ per month with FastRouter's recommendations.
🏆 Hero Features
1. Proactive Cost Insights: We tell you how to save before you ask Most platforms show you a spend chart. We hand you the savings playbook. FastRouter analyzes your real traffic and delivers weekly, actionable recommendations:
Model switching: "This summarization workload performs just as well on a model that costs 60% less; and here's the eval to prove it." Every model switch recommendation we make is backed by evals, so you're never trading quality for cost on faith.
Prompt caching: Spots the repeated prompt prefixes you're paying full price for, and shows exactly what caching would save
Flex tier: Identifies latency-tolerant workloads that could run at discounted flex pricing
2. Evals That Match How You Actually Build Run evaluations directly on FastRouter. No separate eval stack required:
Chat completion evals on your real production traffic and compared against other models
Dataset-based evals for systematic, repeatable benchmarking
Image and video evals to judge your multimedia outputs because multimodal AI deserves more than "looks fine to me".
3. Real-Time Alerts. Know before it hurts.
Latency degradation, error spikes, and spend acceleration caught the moment they start
Delivered where your team already lives: Slack, PagerDuty, webhooks, email
Hard budget caps at the project and key level so you don't wake up to a bill shock
4. Prompt Optimization + Prompt Library
Automated optimization that iteratively refines prompts against your own eval data delivering better quality and fewer tokens
A centralized, versioned prompt library your whole team can share
Your prompts are assets. We help you treat them that way.
5 And the full gateway + ops platform underneath
Unified API across all major LLM providers
Support for provider prompt caching and sticky routing
Semantic response caching
Real-time spend tracking by project, key, and model
Centralized logs and request/response observability
Governance and access control in one place
🏭 Who's using it, and for what
AdTech: Running image and creative compliance checks at massive scale, where a 40% per-request saving compounds into real money
FinTech: On-prem deployment, governance, and audit-ready logs for teams that can't send data to a SaaS
AI SaaS & Product teams: Shipping LLM features with eval-backed confidence, and catching latency regressions before customers do
High-volume pipelines everywhere: Summarization, classification, extraction: the workloads where model switching and caching save the most
The bottom line
Most gateways route your requests. FastRouter runs your AI operation and actively makes it cheaper, faster, and more reliable every week.
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About FastRouter.ai on Product Hunt
“Routing Intelligence for Better AI Outcomes”
FastRouter.ai was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #85 on the daily leaderboard. The one gateway & LLMOps platform to route, govern, observe, and optimize every AI call across 200+ models with zero mark up. FastRouter is an LLM gateway & LLMOps platform for engineering and platform teams running AI in production. It brings model routing, cost controls, observabillity, evaluations, prompt optimization, guardrails, and MCP into one layer — so teams can manage multiple models and providers without building the infrastructure themselves.
FastRouter.ai was featured in API (98.6k followers), Developer Tools (519k followers) and Artificial Intelligence (478.1k followers) on Product Hunt. Together, these topics include over 214.2k products, making this a competitive space to launch in.
Who hunted FastRouter.ai?
FastRouter.ai was hunted by Andrej Gamser. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how FastRouter.ai stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Andrej Gamser
👋 Hey Product Hunt! I'm RP, part of the team behind FastRouter.ai.
FastRouter didn't come from a whiteboard brainstorm. It came from living the pain ourselves: watching our own teams (and later, our customers' teams) struggle to run AI in production. Here's our story:
🔥 The Problem
Every team building with LLMs hits the same walls sooner or later:
Flying blind on spend: We'd sit in review meetings where someone would ask "how much did we spend on tokens this month, and on what?" And the honest answer was a shrug. Keys scattered across five providers, five hard-to-navigate cloud dashboards, five versions of the truth.
Finding out too late: Latency would quietly degrade, errors would creep up, spend would accelerate... and we'd learn about it from an angry user or a scary invoice, not always from our tooling.
Overspending with no fix in sight: Even when we knew costs were too high, nothing told us what to change. We were using premium models for tasks a cheaper one handled just as well, re-sending the same prompt prefixes at full price, and paying real-time rates for jobs that could easily wait.
Quality was a guessing game: Without proper evals on real traffic, "is the new model better?" was answered by vibes and a few spot checks. That's no way to ship!
Prompts as tribal knowledge: Our best prompts lived in code, in Slack threads, in someone's head. Never versioned, never optimized!
We got tired of stitching together a dozen tools to answer basic questions. So we built the thing we wished existed: FastRouter.ai, the routing intelligence platform that helped us deliver better AI outcomes.
⚡ The Solution
FastRouter is the fastest routing intelligence gateway + AI ops platform. One API, one dashboard, every major model. Available as SaaS or fully on-prem. And it's working: individual production customers are already saving $10K+ per month with FastRouter's recommendations.
🏆 Hero Features
1. Proactive Cost Insights: We tell you how to save before you ask
Most platforms show you a spend chart. We hand you the savings playbook. FastRouter analyzes your real traffic and delivers weekly, actionable recommendations:
Model switching: "This summarization workload performs just as well on a model that costs 60% less; and here's the eval to prove it." Every model switch recommendation we make is backed by evals, so you're never trading quality for cost on faith.
Prompt caching: Spots the repeated prompt prefixes you're paying full price for, and shows exactly what caching would save
Flex tier: Identifies latency-tolerant workloads that could run at discounted flex pricing
2. Evals That Match How You Actually Build
Run evaluations directly on FastRouter. No separate eval stack required:
Chat completion evals on your real production traffic and compared against other models
Dataset-based evals for systematic, repeatable benchmarking
Image and video evals to judge your multimedia outputs because multimodal AI deserves more than "looks fine to me".
3. Real-Time Alerts. Know before it hurts.
Latency degradation, error spikes, and spend acceleration caught the moment they start
Delivered where your team already lives: Slack, PagerDuty, webhooks, email
Hard budget caps at the project and key level so you don't wake up to a bill shock
4. Prompt Optimization + Prompt Library
Automated optimization that iteratively refines prompts against your own eval data delivering better quality and fewer tokens
A centralized, versioned prompt library your whole team can share
Your prompts are assets. We help you treat them that way.
5 And the full gateway + ops platform underneath
Unified API across all major LLM providers
Support for provider prompt caching and sticky routing
Semantic response caching
Real-time spend tracking by project, key, and model
Centralized logs and request/response observability
Governance and access control in one place
🏭 Who's using it, and for what
AdTech: Running image and creative compliance checks at massive scale, where a 40% per-request saving compounds into real money
FinTech: On-prem deployment, governance, and audit-ready logs for teams that can't send data to a SaaS
AI SaaS & Product teams: Shipping LLM features with eval-backed confidence, and catching latency regressions before customers do
High-volume pipelines everywhere: Summarization, classification, extraction: the workloads where model switching and caching save the most
The bottom line
Most gateways route your requests. FastRouter runs your AI operation and actively makes it cheaper, faster, and more reliable every week.
👉 Try it free today: FastRouter.ai
We built this because we needed it. I'd love to hear how you're managing your AI stack today. Ask us anything! 🙌