MIT control plane
Free
Self-hosted software; inference and infrastructure billed separately
- Included scope
- Routing, metering and policy controls
ARBR
● Identity checkedSelf-hosted model routing gateways · Official-source review 2026-10-09
ARBR is an MIT-licensed control plane that routes model requests through an OpenAI-compatible endpoint. It offers cost attribution, budgets, guardrails, evaluations and provider fallback policies.
- Category
- Self-hosted model routing gateways
- Free access
- MIT-licensed self-hosted software; infrastructure and model-provider fees are separate.
- API access
- OpenAI-compatible inference endpoint and OpenTelemetry export are documented, with provider and gateway integrations.
Is ARBR right for you?
A good fit for
Relevant to teams reviewing model routing and usage policy in their own infrastructure.
Before you choose
The training-data capture capability is explicitly not shipped yet. Some deployment capability is labeled Roadmap, so verify availability before planning a rollout. Traffic passes through the gateway, which requires careful logging and credential policy. Displayed savings, latency and prompt-injection protection were not independently benchmarked.
Workflow and handoff
Route a permitted test workload, inspect logs and budget enforcement and compare quality before changing production routing.
Pricing and practical limits
The training-data capture capability is explicitly not shipped yet. Some deployment capability is labeled Roadmap, so verify availability before planning a rollout. Traffic passes through the gateway, which requires careful logging and credential policy. Displayed savings, latency and prompt-injection protection were not independently benchmarked.
Review method
Official product evidence reviewed on 2026-10-09; product artwork inspected visually. No hands-on vendor application test was performed. Application performance, security claims and plan enforcement were not independently tested.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Product workflow | ARBR is an MIT-licensed control plane that routes model requests through an OpenAI-compatible endpoint. It offers cost attribution, budgets, guardrails, evaluations and provider fallback policies. | Facts sourced | 2026-10-09 |
| Pricing and restrictions | The training-data capture capability is explicitly not shipped yet. Some deployment capability is labeled Roadmap, so verify availability before planning a rollout. Traffic passes through the gateway, which requires careful logging and credential policy. Displayed savings, latency and prompt-injection protection were not independently benchmarked. | Facts sourced | 2026-10-09 |
Understand the total cost
ARBR pricing & plans
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Explore toolThe practical questions
Frequently asked questions
Was the application hands-on tested?
No. This listing is based on dated official-source evidence and a visual artwork check. Unconfirmed costs and restrictions are identified explicitly.
What is ARBR used for?
ARBR is an MIT-licensed control plane that routes model requests through an OpenAI-compatible endpoint. It offers cost attribution, budgets, guardrails, evaluations and provider fallback policies.
Does ARBR have a free plan?
MIT-licensed self-hosted software; infrastructure and model-provider fees are separate.. This record lists ongoing free access; check the plan limits before starting.
How much does ARBR cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use ARBR through an API?
OpenAI-compatible inference endpoint and OpenTelemetry export are documented, with provider and gateway integrations.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
The training-data capture capability is explicitly not shipped yet. Some deployment capability is labeled Roadmap, so verify availability before planning a rollout. Traffic passes through the gateway, which requires careful logging and credential policy. Displayed savings, latency and prompt-injection protection were not independently benchmarked.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Official product information
Current official product source read individually; product artwork inspected visually.
Read original source ↗Pricing review
Official product page reviewed for disclosed costs; unverified prices and allowances are identified in the listing.
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.