12 alternatives to Helicone in Inference Aggregators, Gateways & Routers. 2 of them are tracked direct competitors.
| Company | Pricing | Open source | Funding |
|---|---|---|---|
| Heliconethis pageOpen-source LLM observability platform that also proxies requests. | Freemium | Yes | Seed |
| LangDBdirect competitorAI gateway with governance, routing, and observability for LLM traffic. | Unknown | — | Unknown |
| Portkeydirect competitorAI gateway for routing, caching, and observability across LLM providers. | Freemium | Yes | Seed |
| AI/ML APIAggregated API access to hundreds of AI models under one key. | Paid | No | Unknown |
| AnyscaleManaged Ray platform for scaling AI and Python workloads, including LLM serving. | Enterprise | Yes | Series C |
| BasetenPlatform for deploying and serving custom ML models in production. | Paid | No | Series A |
| CentMLInference optimization platform for reducing LLM serving costs. | Paid | — | Seed |
| Cloudflare Workers AIServerless inference running on Cloudflare's global edge network. | Paid | No | Public |
| DeepInfraLow-cost hosted inference for open-source models. | Freemium | No | Unknown |
| Featherless AISubscription API giving unlimited access to a large catalog of open models. | Paid | — | Unknown |
| Fireworks AIFast, low-cost inference platform for open and custom models. | Paid | No | Series B |
| GMI CloudGPU cloud provider focused on AI training and inference workloads. | Paid | No | Series A |
| GroqCustom LPU chip maker offering extremely low-latency LLM inference. | Enterprise | No | Series D+ |
Direct competitors are curated relationships in the index. The remaining entries share the Inference Aggregators, Gateways & Routers category.