Respan Gateway vs Zro (2026)
A side-by-side comparison of Respan Gateway and Zro on pricing, features, and fit, so you can decide which is right for you.
Quick answer
Respan Gateway and Zro are both strong choices, but they fit different needs. Choose Respan Gateway if you mainly need managing multi-provider llm traffic for production ai applications — its edge is combines routing, observability, and evals in a single platform reducing tool sprawl. Choose Zro if you need building ai coding agents that require privacy guarantees and long-context model support — its edge is strong privacy guarantees with zero request retention and no prompt training. Respan Gateway starts at around $49/month based on usage volume; Zro starts at $20/mo (includes $60 inference spend).
Features compared
- Unified LLM routing across multiple AI providers with a single API endpoint
- Built-in observability including request tracing, latency monitoring, and logging
- Automated evaluations to benchmark and compare model outputs at scale
- Fallback and retry logic to handle provider outages and reduce downtime
- OpenAI-compatible API supporting open-weight models like MiniMax M3, GLM-5.2, and Kimi K2.7 Code
- Zero data retention by default with no training on customer prompts
- Multi-region hosted inference optimized for coding agents and long-context tasks
- Optional on-premises deployment for teams with strict data residency requirements
Pros & cons
- Combines routing, observability, and evals in a single platform reducing tool sprawl
- Provider-agnostic design makes it easy to swap or mix LLM providers
- Saves engineering time by replacing custom middleware with ready-built infrastructure
- Relatively new platform so documentation and community resources are still maturing
- Advanced evaluation customization may require technical setup not suited for non-developers
- Strong privacy guarantees with zero request retention and no prompt training
- OpenAI-compatible API makes it easy to migrate existing applications with minimal code changes
- Supports modern open-weight models optimized for coding and long-context tasks
- No free tier available, making it harder to evaluate before committing spend
- Usage packs expire after 90 days, which may not suit teams with unpredictable or infrequent usage patterns
The verdict
Choose Respan Gateway if
you mainly need to managing multi-provider llm traffic for production ai applications. Its edge: combines routing, observability, and evals in a single platform reducing tool sprawl.
Choose Zro if
you mainly need to building ai coding agents that require privacy guarantees and long-context model support. Its edge: strong privacy guarantees with zero request retention and no prompt training.
Frequently asked questions
Is Respan Gateway better than Zro?
Neither is universally better. Respan Gateway is stronger for managing multi-provider llm traffic for production ai applications, with an edge in combines routing, observability, and evals in a single platform reducing tool sprawl. Zro is stronger for building ai coding agents that require privacy guarantees and long-context model support, with an edge in strong privacy guarantees with zero request retention and no prompt training. Pick based on your main task.
Which is cheaper, Respan Gateway or Zro?
Respan Gateway starts at around $49/month based on usage volume and Zro starts at $20/mo (includes $60 inference spend). Free tier: Respan Gateway — Free tier available with limited requests and basic observability features; Zro — No free tier; usage packs available without subscription.
What is Respan Gateway best for?
Respan Gateway is best for managing multi-provider llm traffic for production ai applications, running automated evals to compare model quality across openai and anthropic, monitoring api costs and latency to optimize ai infrastructure spending.
What is Zro best for?
Zro is best for building ai coding agents that require privacy guarantees and long-context model support, developing long-context document processing or summarization tools without self-hosting infrastructure, replacing shared inference platforms in compliance-sensitive enterprise environments.
Do Respan Gateway and Zro have free plans?
Respan Gateway: Free tier available with limited requests and basic observability features. Zro: No free tier; usage packs available without subscription. Check each tool's pricing page for current limits, as plans change.