Martian
LLM model router and unified API that selects the best model per request to improve performance and reduce cost.
At a Glance
Get started with Martian at no cost with 2,500 requests free and API access, unlimited runs.
Engagement
Available On
Alternatives
Updated Feb 2026
About Martian
Martian provides a model router and gateway that forwards each request to the most suitable LLM based on performance, cost, and reliability. It’s a drop-in, OpenAI-compatible endpoint with controls for max cost and willingness-to-pay, automatic failover across providers, benchmarking reports, and access to a large catalog of supported models. A free developer tier includes 2,500 requests; paid usage is metered, and enterprises can deploy custom routers with SLA and VPC options.
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Pricing
Developer (Free tier)
Get started with Martian at no cost with 2,500 requests free and API access, unlimited runs.
- 2,500 requests free
- API access, unlimited runs
- Access to full model list
- Performance vs. cost optimization
Developer (usage-based)
Developer (usage-based) plan with $20 per additional 5,000 requests after free tier.
- $20 per additional 5,000 requests after free tier
Enterprise (Custom Router)
Enterprise-grade solution with Custom-built router tuned to your data and tasks and SLA and VPC deployment and dedicated support.
- Custom-built router tuned to your data and tasks
- SLA and VPC deployment
- API access, unlimited runs
- Performance vs. cost optimization
- Access to complete model list
Capabilities
Key Features
- Real-time routing across multiple LLM providers
- OpenAI-compatible API (base_url swap) for easy integration
- Cost/performance controls (e.g., max_cost, willingness_to_pay)
- Automatic failover and outage rerouting for higher uptime
- Benchmarking reports to validate router performance
- Unified access to hundreds of models via adapters
- Single Martian key or bring-your-own provider keys
- Enterprise options: SLA, VPC deployment, and custom-built routers
- Supported SDK examples for Python, Node, and LangChain
- Leaderboards and datasets to compare model cost/latency/performance