Flatkey records 49,134 monthly visits with -40.8% month-over-month growth and Paid, Contact for Pricing pricing. LiteLLM records 576,967 monthly visits with +7.9% growth and Freemium, Contact for Pricing pricing.
One API key for frontier models, 1,000+ AI tools, and one invoice
One open-source AI gateway for 100+ LLM providers
| Dimension / Metric | | |
|---|---|---|
| Official Domain | flatkey.ai | litellm.ai |
| Pricing Model | Paid, Contact for Pricing | Freemium, Contact for Pricing |
| Monthly Visits | 49.13K (49,134) | 576.97K (576,967) |
| MoM Traffic Delta | -33.92K (-40.8%) | +42.48K (+7.9%) |
| Primary Market & Share | 🇨🇳 China (69.9%) | 🇺🇸 United States (27.9%) |
| Direct Visits / mo | 30.53K | 228.97K |
| User Rating | 4.1 | 4.8 |
| Supported Platforms | Website | Website |
One API key for frontier models, 1,000+ AI tools, and one invoice
Point your existing SDK at Flatkey's router URL and select models by ID instead of managing a credential per provider.
Frontier chat models and 1,000+ pay-per-call tools share one auth layer, one balance, and one invoice.
Issue scoped keys per agent or environment, capped by spend and restricted to approved models and tools.
Requests route across five channel classes; when one degrades the router reroutes, backed by a 99.5% SLA document.
One open-source AI gateway for 100+ LLM providers
Call 100+ providers and 1,800+ models using one request format, so you can swap models without changing application code.
Issue scoped keys per team, project or app, set monthly spend caps and see exactly who is driving usage and cost.
Distribute traffic across deployments, retry on failure and automatically fall back to another model or provider when one goes down.
Dashboards for request volume, tokens and cost per model, with support for logging and analytics integrations.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Provides a massive hosted model catalog with instant access, but requires trusting a third-party platform instead of self-hosting.
Provides a massive hosted model catalog with instant access, but requires trusting a third-party platform instead of self-hosting.
SpecialistHosts high-performance open-weight models directly on dedicated serverless infrastructure, but does not route across external providers.
SpecialistHosts high-performance open-weight models directly on dedicated serverless infrastructure, but does not route across external providers.
Delivers automated model failover and budget governance through an API gateway, but with less open-source customization.
Delivers automated model failover and budget governance through an API gateway, but with less open-source customization.
Free / Open-sourceOne OpenAI-compatible API key for 500+ AI models
Free / Open-sourceOne OpenAI-compatible API key for 500+ AI models
Unified LLM gateway with failover and analytics, but offers less robust open-source developer SDK support.
Unified LLM gateway with failover and analytics, but offers less robust open-source developer SDK support.
One API key for hundreds of AI models
One OpenAI-compatible key for discounted GPT, Claude and Gemini access
Offers advanced enterprise observability and guardrail tools, but lacks LiteLLM's lightweight self-hosted proxy simplicity.
Offers advanced enterprise observability and guardrail tools, but lacks LiteLLM's lightweight self-hosted proxy simplicity.
Provides managed multi-provider AI routing and cost tracking, but lacks the native open-source flexibility of LiteLLM.
Free / Open-sourceAn open-source alternative for unifying LLM providers, but features a less extensive ecosystem of middleware integrations.
Free / Open-sourceAn open-source alternative for unifying LLM providers, but features a less extensive ecosystem of middleware integrations.
Free / Open-sourceOpen-source request routing with built-in evaluations, but has a smaller community and fewer pre-built provider connectors.
Free / Open-sourceOpen-source request routing with built-in evaluations, but has a smaller community and fewer pre-built provider connectors.
