ARBR vs Superagent: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of ARBR and Superagent — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
ARBR
Gyde & Domkundwar Foundation
Open-source, MIT-licensed AI gateway and control plane that routes, governs and observes every LLM request behind one OpenAI-compatible endpoint.
Key features
- OpenAI-Compatible Routing: A single drop-in endpoint over every major provider, with rules, difficulty-aware selection, cost guardrails and automatic fallback choosing the model per request.
- In-Path Governance: Budgets, rate limits, output guardrails, prompt-injection checks and kill switches enforce policy before inference rather than auditing it afterwards.
- Structured Observability: Cost, latency, tokens and routing decisions are emitted as structured events attributed by application, team, model and user, viewable in local dashboards or exported to OpenTelemetry backends such as Datadog, Grafana and Prometheus.
- LLM-Judge Evaluation: A sample of live traffic is scored for quality so requests can be routed to the cheapest model that provably clears the bar, rather than optimising on price alone.
- Safe Model Deployment: Canary and shadow new models against real traffic with regression gates that block promotion until evaluations pass, plus instant rollback.
- Broad Provider Coverage: One layer over Anthropic, OpenAI, Google Gemini, Amazon Bedrock, Azure OpenAI, Vertex AI, Groq, DeepSeek, Moonshot, xAI and Mistral, plus LiteLLM and NVIDIA NIM, with pricing and benchmark data for over 3,000 models.
- Drop-In SDK Compatibility: Change only the base URL and existing OpenAI SDKs, agent frameworks and chat UIs keep working, gaining streaming chat completions, embeddings, a realtime voice proxy and JavaScript and Python SDKs.
- Self-Hosted and MIT Licensed: The full control plane runs inside your own infrastructure under an MIT licence, with a hosted option available for teams that do not want to operate it.
Best for
- LLM Cost Reduction: Route summarisation and extraction traffic to cheap small models while reserving frontier models for analysis, cutting spend without hand-editing every call site.
- AI Spend Attribution: Give finance and engineering a per-application, per-team and per-user breakdown of token spend so AI budgets can be owned by the groups that generate them.
- Enterprise AI Governance: Enforce departmental budgets, rate limits and kill switches in the request path so a runaway agent cannot exhaust a quarter's inference budget.
- Provider Risk Mitigation: Keep applications provider-neutral behind one endpoint with automatic fallback, so a single vendor outage or price change does not require a code change.
- Model Migration Testing: Shadow or canary a newly released model against production traffic and let regression gates decide whether it is promoted.
- Prompt-Injection Defence: Apply output guardrails and prompt-injection checks centrally for every application instead of reimplementing them per service.
Superagent
Superagent Technologies, Inc.
Open-source AI security platform that provides runtime protection for agents, prevents data leaks, and offers hosted compliance trust centers.
Key features
- Runtime Protection: Real-time interception and inspection of agent prompts and tool calls to detect and stop data exfiltration, malicious inputs, or unsafe behavior before actions are executed.
- Prompt Inspection & Validation: Analyze and enforce policies on prompts and inputs, validate tool-call schemas and parameters, and block or modify calls that violate rules or expose sensitive data.
- Tool Call Firewall & Sandboxing: Validate, allow, or deny external tool invocations and run tools in isolated sandboxes (e.g., Vibekit) to contain risk from third-party models and tools.
- Data Redaction & Sensitive Data Protection: Automatic redaction/masking of PII and secret material in transit and in logs, preventing sensitive data from being stored or leaked to external services.
- Hosted Trust Center & Compliance Artifacts: Generate and host audit trails, dashboards, and compliance proofs that demonstrate runtime protections to enterprise buyers and security teams.
- Multi-language SDKs & High-performance Proxies: SDKs for TypeScript and Python plus proxy implementations in Node and Rust for flexible integration and production-grade performance.
- Observability & Auditing: Detailed telemetry, logging, and audit trails of agent decisions and tool usage to support incident investigation, forensics, and regulatory reviews.
- Deployment Tools & Integrations: CLI, Docker configurations, and docs for straightforward deployment into CI/CD pipelines, staging environments, and production agent stacks.
- Prompt inspection and runtime monitoring of agent interactions
- Tool-call validation and enforcement to block malicious or sensitive operations
- Real-time blocking of threats and prevention of data leaks
- Multiple proxy implementations: Node.js and Rust (high-performance)
- SDKs for TypeScript and Python for programmatic control (agent/tool creation and invocation)
- Command-line interface and Docker configurations for deployment
- Sensitive-data redaction and observability baked into sandboxes (vibekit)
- Hosted trust center for compliance evidence and buyer assurance
- Support for multiple LLM providers (OpenAI, Anthropic, etc.)
- Models and additional resources published on Hugging Face and GitHub
Best for
- Preventing data exfiltration from production agents by inspecting prompts and blocking tool calls that attempt to leak secrets or PII.
- Proving enterprise compliance during vendor security reviews by providing hosted trust center dashboards and audit artifacts that show runtime protections.
- Running third-party LLMs and coding agents in isolated sandboxes to safely evaluate capabilities without exposing sensitive corpora or credentials.
- Instrumenting copilots and agent-based workflows to validate tool-call schemas, enforce business policies, and prevent unauthorized actions programmatically.
- Redacting sensitive customer or internal data before logging or sending requests to external APIs to reduce breach and compliance risk.
- Providing a developer-facing security layer (SDKs + proxies) to integrate policy enforcement and observability into existing agent deployments.
- Protecting conversational agents and copilots from exfiltration and malicious tool calls
- Adding runtime enforcement and validation around third-party tool integrations
- Running coding agents in isolated sandboxes with redaction and observability
- Demonstrating vendor and deployment compliance to enterprise buyers via a trust center
- Embedding SDK-driven agent management (create agents, add tools, invoke agents) in applications
- Self-hosting or containerized deployment using Docker and provided proxies