Intelligent Model Routing

Send Every Prompt to the Right Model

Best answer, best price, automatically. routing.ms is the intelligent layer that decides — for every single call — which model handles it. Quality, cost, and speed balanced in real time, without you hard-coding the choice.

Provider-agnostic
Auto-failover
Full decision logs
→ single routing.ms endpoint
Intelligent Router
assessing complexity · sensitivity · policy
Task Type Data Class Cost Limit Latency
Routes to best-fit model
Frontier
Hard tasks
Mid-tier
Balanced
Fast/Cheap
Easy tasks
0%
Cost Saved
0%
Uptime
0x
Faster Routing
Best-Fit Model Per Request Real-Time Cost Optimization Automatic Failover Policy-Aware Routing Sensitive-Data Controls Full Decision Logging Smart Response Caching Provider-Agnostic Best-Fit Model Per Request Real-Time Cost Optimization Automatic Failover Policy-Aware Routing Sensitive-Data Controls Full Decision Logging Smart Response Caching Provider-Agnostic

Routing That Pays for Itself

Teams using routing.ms consistently reduce inference spend while maintaining or improving response quality — automatically, on every call.

0
Average Inference Cost Reduction
0
Routing Availability SLA
0
Model Providers Supported
0
Added Latency (routing overhead)

The One-Size-Fits-All Trap

Most applications pick one model and send everything to it. That guarantees waste on easy requests, failure risk on hard ones, and a single point of failure when that provider changes pricing or goes down.

Frontier Costs on Trivial Tasks

Sending a simple classification to your most powerful model burns budget on tasks that a cheaper model handles just as well.

Quality Risk on Hard Queries

Routing complex reasoning to a budget model fails users. There is no single model that's right for every prompt in every context.

Single Provider Lock-In

Hard-coding a model makes your application fragile. Provider outages, price hikes, or rate limits bring your whole stack down.

Sensitive Data Exposure Risk

Without routing controls, regulated or confidential prompts can land on unapproved external models without any guardrails.

Cost vs Quality — One Model vs Routed
Hard Queries — Frontier ModelCorrect
92%
Easy Queries — Frontier ModelWasteful
78%

With routing.ms
Hard Queries → FrontierOptimal
95%
Easy Queries → Fast/CheapEfficient
-62%
62% Cost Reduction
while maintaining quality on every hard query

One Endpoint. Every Model.

routing.ms sits as a single endpoint in front of every provider. Your application stays simple — the router handles complexity, policy, failover, and optimization on every call.

01

Point to One Endpoint

Replace provider-specific URLs with a single routing.ms endpoint. No application code changes needed beyond that.

02

Every Prompt Gets Assessed

Complexity, data sensitivity, and applicable policy rules are evaluated in real time before the prompt is dispatched.

03

Optimal Model Selected

The router matches each prompt to the model that best balances quality, cost, and latency for that specific request.

04

Failover and Logging Automatic

If a provider fails, routing is redirected instantly. Every routing decision is logged with full rationale for continuous tuning.

Request Flow
Incoming Prompt
routing.ms Assessment
Frontier
|
Mid-tier
|
Economy
Response + Log
Complexity Score
Policy Match
Cost Ceiling
Data Class

Smart Routing on Every Call

Every capability built around one principle: the right model for this request, automatically.

Best-Fit Per Request

Each prompt is matched to the model best suited to handle it — not the default model, but the optimal one for this task, right now.

Live Trade-Off Balancing

Quality, cost, and latency are weighed against each other in real time. You set the priorities; routing.ms executes the optimal trade-off on every call.

Automatic Failover

If a provider goes down or rate-limits, requests are rerouted to the next best model without downtime or application changes.

Policy-Aware Routing

Route by task type, data sensitivity, or compliance requirements. Regulated prompts stay on approved or on-premises models automatically.

Budgets and Guardrails

Set spend limits per workflow, team, or endpoint. Costs stay predictable without throttling quality on the requests that matter most.

Smart Response Caching

Identical or semantically similar queries return cached responses. You never pay twice for the same answer.

Routing Logic for Every Scenario

From cost-sensitive production APIs to compliance-gated enterprise prompts — explore how routing.ms adapts its decision logic per context.

1

Prompt Enters Routing Engine

The prompt arrives at the routing.ms endpoint. Cost optimization policy is active for this workflow.

2

Complexity Classification

The router scores the prompt for complexity — factual retrieval, reasoning depth, code generation, creative writing — in milliseconds.

3

Cheapest Capable Model Selected

The lowest-cost model that reliably handles this complexity level is chosen. Frontier reserved only for tasks that need it.

4

Spend Tracked, Cache Checked

Budget is debited against the workflow limit. Similar queries are served from cache to eliminate redundant calls.

Cost Routing Flow
Incoming Prompt
Cache Check
Complexity Score
Budget Gate
Economy
|
Mid-Tier
|
Frontier
1

Quality Threshold Configured

You define minimum quality expectations per workflow — allowing the router to enforce them rather than leaving it to chance.

2

Task Complexity Assessed

Multi-step reasoning, long-context tasks, and specialized domains are flagged as high-complexity and need capable models.

3

Frontier Dispatched Where Needed

Hard prompts are always sent to a capable model. Quality is never compromised by cost pressure on the tasks that matter.

4

Quality Metrics Logged

Response confidence, latency, and cost are tracked per model per task type, enabling continuous calibration over time.

Quality Assurance Flow
Complex Prompt
Quality Gate
Frontier Model
Response
Quality Log
Calibration
1

Request Dispatched to Primary

The optimal model for the request is selected and the prompt is dispatched as normal.

2

Provider Failure Detected

Timeout or error responses from the primary provider are detected in real time — no manual intervention required.

3

Automatic Re-Routing

The request is immediately routed to the next best available provider with equivalent capability. Zero downtime for your application.

4

Incident Logged, Alerts Sent

The failure event is logged with timing and fallback path. Teams can review provider reliability trends in the observability dashboard.

Failover Logic
Prompt
Primary Model
Failure / Timeout
Failover Trigger
Backup Model
Incident Log
1

Data Classification Applied

Prompts are classified for sensitivity — PII, financial data, health information — before any routing decision is made.

2

Policy Lookup Per Classification

Compliance rules map each data class to approved model providers, jurisdictions, or on-premises inference endpoints.

3

Restricted to Approved Models Only

Regulated prompts are never dispatched to unapproved external models, regardless of cost or latency advantage.

4

Audit Log Written

Every routing decision for classified data is written to an immutable audit log for regulatory review and compliance reporting.

Compliance Routing
Prompt
Data Classifier
Policy Engine
Approved Models
Response
Audit Log

Designed for Every Context

Whether you're optimizing a high-volume API or enforcing compliance on enterprise prompts — routing.ms adapts to your workload.

Mixed Workloads

Applications With Easy and Hard Requests

Products that serve everything from simple lookups to complex analysis get the best model for each request type — not an overpriced one-size model for every call.

Complexity RoutingCost ReductionQuality Maintained
Cost Control

Teams Managing Inference Spend

Engineering and finance teams set spend budgets per workflow. routing.ms enforces them automatically, redirecting to cheaper models as limits approach without manual intervention.

Budget GuardrailsSpend VisibilityPredictable Bills
Data Sensitivity

Compliance and Regulated Workloads

Financial services, healthcare, and government teams route sensitive prompts to approved or on-premises models automatically — without developers writing routing logic by hand.

GDPR / HIPAAOn-Prem RoutingAudit Logs
Reliability

Provider Resilience and Redundancy

Any application that can't afford downtime from a provider outage gets automatic failover to equivalent models — keeping uptime high without operational firefighting.

Zero DowntimeMulti-ProviderIncident Logging

Every Provider. One Endpoint.

routing.ms works with every major model provider and fits into your existing infrastructure without rewiring your application.

OpenAI
Anthropic
Google Gemini
Meta Llama
Mistral AI
Cohere
On-Premises
Custom Endpoints

Trust Built Into Every Route

Routing decisions are policy-enforced, fully logged, and designed so sensitive data never reaches an unapproved model.

Sensitive Data Routing Controls

Data classification happens before dispatch. Regulated or confidential prompts only reach approved providers — enforced at the routing layer, not the application layer.

Immutable Decision Logs

Every routing decision — which model, why, when, for what cost — is written to a tamper-evident log ready for security audit or compliance review.

Encryption in Transit

All prompt traffic is encrypted in transit through the routing layer. Credentials to provider APIs are stored in a secrets vault, never in application config.

Continuous Policy Enforcement

Compliance rules are enforced on every single call. Policy drift detection flags when routing decisions approach boundary conditions before they become violations.

Common Questions

How does routing.ms decide which model to use for each request?

Each incoming prompt is assessed across several dimensions: task complexity (factual vs. reasoning vs. creative), data classification, applicable policy rules, current cost ceilings, and provider latency. The router scores these in real time and selects the model that best satisfies all active constraints — defaulting to the cheapest capable option unless quality or compliance rules override.

How long does the routing decision add to my response time?

The routing decision itself adds less than 5ms to total latency in typical deployments. Because routing often selects faster, lighter models for simple tasks, the end-to-end response time often decreases rather than increases compared to always using a frontier model.

What happens if my preferred provider goes down?

Failover is automatic. If a provider returns an error or times out, routing.ms immediately reroutes the request to the next best available model — no configuration change, no code deployment, no incident response required. The event is logged and available in your observability dashboard.

Can I prevent sensitive data from reaching external model providers?

Yes. You define data sensitivity classifications and map them to approved model providers or on-premises inference endpoints. routing.ms enforces these rules on every call — regulated prompts are never dispatched to unapproved external APIs. Every compliance routing decision is written to an audit log.

Do I need to change my application code to use routing.ms?

The only change is pointing your API calls to the routing.ms endpoint instead of a provider-specific URL. The request and response format is compatible with standard LLM API conventions. No routing logic, no provider-switching code, and no model selection logic is needed in your application.

How do I add or swap model providers?

Model providers are managed in the routing.ms configuration dashboard — add, remove, or reprioritize them without touching application code. When a new model becomes available or a pricing change makes a different provider preferable, you update the routing policy and it takes effect on the next request.

Route Intelligently. Spend Wisely.

Stop choosing between quality and cost at the architecture level. Point your application at routing.ms and let every prompt find its best model — automatically.