Cost Optimization
Estimate and reduce AI spend by routing requests to cost-efficient models, identifying savings opportunities, and avoiding premium-model overuse across production workloads.
Estimate and control AI model spend before it reaches production. The Token Cost Calculator helps teams compare token usage, provider pricing, routing choices, and projected workloads across FastRouter’s unified AI gateway. Use it to forecast budgets, identify expensive model patterns, and plan smarter deployments with built-in governance, analytics, and cost optimization support.
Estimate, monitor, and optimize AI token costs across providers, models, teams, and production workloads.
Estimate and reduce AI spend by routing requests to cost-efficient models, identifying savings opportunities, and avoiding premium-model overuse across production workloads.
Track token usage, request volume, and spend by model, provider, project, and team in one dashboard for clearer forecasting and chargeback.
Set project-level budgets, API-key limits, member roles, and model access controls to prevent surprise bills and keep teams accountable.
Unify charges from OpenAI, Anthropic, Gemini, xAI Grok, and other providers into one statement with clearer cost reconciliation.
Analyze live API requests to compare model performance, latency, reliability, and savings opportunities using real workload data.
Receive real-time notifications when cost, latency, errors, or usage anomalies exceed your configured thresholds across any provider.
AI costs become difficult to manage when every provider, model, and team reports usage differently. FastRouter brings token usage, request volume, routing behavior, and provider spend into one control plane, helping teams estimate costs before launch and optimize them after deployment. With analytics, governance, routing, and consolidated billing, your calculator becomes part of a complete cost-management workflow.
See how teams use FastRouter to forecast, monitor, and reduce AI model spend with confidence.
"Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance."
"Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in."
"FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it."
"Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance."
"Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in."
"FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it."
"Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance."
"Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in."
"FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it."
FastRouter helps teams move from rough AI cost estimates to governed, measurable spend control.
FastRouter connects token estimates to live usage, routing, analytics, and billing data.
Automatic routing helps choose cost-efficient models while preserving reliability and output quality.
Project limits, API-key controls, and roles keep AI budgets predictable across teams.
Free credits let teams evaluate cost workflows before sending production traffic.
Purpose-built infrastructure for teams managing production AI spend.
FastRouter is built for engineering, product, platform, and finance teams that need reliable control over AI usage at scale. Instead of treating token cost calculation as a disconnected spreadsheet, FastRouter connects estimates to real production signals: request logs, token counts, model choices, latency, quality evaluations, alerts, and consolidated billing. Its vision is to give teams one OpenAI-compatible control plane for operating AI responsibly across 100+ models. That means developers can keep shipping, leaders can forecast budgets, and organizations can avoid the hidden complexity of managing spend across many providers and separate dashboards.
A token cost calculator estimates how much your AI workload will cost based on input tokens, output tokens, model pricing, request volume, and usage patterns. For LLM teams, it helps compare models, forecast monthly spend, and identify where cheaper or faster models can handle tasks without sacrificing quality or reliability.
Get practical answers about estimating and controlling AI spend.
Works with familiar OpenAI-compatible workflows.
Centralized insight across models and providers.
Spend controls, access rules, and audit trails.
Tell us about your AI workload, target models, and monthly usage goals. FastRouter can help estimate costs, compare routing options, and identify savings opportunities before you scale.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.