AISIX Alternatives
Open-source AI gateway in Rust with one OpenAI-compatible API across 100+ LLM providers
AISIX is an open-source AI gateway built in Rust by API7, the team behind Apache APISIX.
Explore 149 alternatives to AISIX across 2 categories. Each tool listed below shares at least one category with AISIX.
Featured
NanoGPT
One OpenAI-compatible API for 600+ models, with text billed at provider list prices
Pay per prompt, from $0.10
Top AISIX alternatives at a glance
- Vynaris. OpenAI-compatible gateway that routes each request to a smaller model and returns a cost receipt
- Varion. OpenAI-compatible proxy that trims LLM token usage before requests reach your provider
- AI Gateway HQ. LLM gateway built around spend limits enforced before a request reaches a provider
- Infer by Flow7. Responses API gateway for coding agents, with a public model catalog and per-request spend ceilings
- Requesty. LLM gateway and router with one OpenAI-compatible API across 400+ models
🤖 Inference APIs
vLLM
High-throughput LLM inference engine with PagedAttention for efficient GPU memory usage
Beam
Open-source serverless GPU cloud with sub-second cold starts and auto-scaling
Project Zero
CPU-only LLM inference engine in C with no runtime dependencies
BentoML
BentoML is the platform for software engineers to build AI products.
📊 Observability & Analytics
Comet Opik
Comet provides an end-to-end model evaluation platform for AI developers.
Agenta
Open-source prompt management, evaluation, and observability for LLM apps
Dunetrace
Runtime reliability and failure detection for AI agents
Braintrust
Stop building AI in the dark.
RAGAS
Open-source evaluation and testing framework for LLM and RAG applications
Presidio
Microsoft open-source SDK for detecting and anonymizing PII in text and images
Guardrails AI
Open-source framework for adding input and output validators around LLM calls
NeMo Guardrails
NVIDIA toolkit for adding programmable guardrails to LLM conversational apps
Frequently asked questions
What are the best alternatives to AISIX?
Based on category overlap and popularity, the top alternatives to AISIX include: Vynaris (OpenAI-compatible gateway that routes each request to a smaller model and ret...); Varion (OpenAI-compatible proxy that trims LLM token usage before requests reach your...); AI Gateway HQ (LLM gateway built around spend limits enforced before a request reaches a pro...); Infer by Flow7 (Responses API gateway for coding agents, with a public model catalog and per-...); Requesty (LLM gateway and router with one OpenAI-compatible API across 400+ models). See all 149 alternatives compared on this page.
Is there a free alternative to AISIX?
Yes. 105 alternatives to AISIX offer a free tier or free trial: Varion, AI Gateway HQ, Requesty, 2kw.ai, Openspender, Vercel AI Gateway, and more. Use the comparison above to find the best fit for your use case.
Are there open-source alternatives to AISIX?
Yes. 32 of the 149 alternatives to AISIX listed here are open source: DeepSeek, vLLM, SGLang, Mistral, Beam, Project Zero, and more. Open-source tools can be self-hosted for full control over data and infrastructure.
What is AISIX?
AISIX is an open-source AI gateway built in Rust by API7, the team behind Apache APISIX. It puts one OpenAI-compatible API in front of more than 100 model providers, including OpenAI, Anthropic, Gemini, DeepSeek, Mistral, Groq and Cohere, plus AWS Bedrock, Azure OpenAI and Vertex AI. An Anthropic... See 149 alternatives to AISIX across 2 categories.
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