Portkey Alternatives
AI gateway for routing to 1,600+ LLMs with observability, guardrails, and prompt management
Portkey is an AI infrastructure platform with an open-source AI gateway at its core.
Explore 41 alternatives to Portkey across 2 categories. Each tool listed below shares at least one category with Portkey.
Top Portkey alternatives at a glance
- Agenta. Open-source prompt management, evaluation, and observability for LLM apps
- Arize AI. AI observability platform with tracing, evaluation, and monitoring for LLM and ML applications
- Braintrust. Stop building AI in the dark.
- Cekura. Testing and monitoring platform for AI voice and chat agents
- Cloudflare AI Gateway. LLM proxy with caching, logging, rate limiting, and cost analytics
📊 Observability & Analytics
Agenta
Open-source prompt management, evaluation, and observability for LLM apps
Braintrust
Stop building AI in the dark.
Comet Opik
Comet provides an end-to-end model evaluation platform for AI developers.
✍️ Prompt engineering
Fixie
The fastest way to build conversational AI agents
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PromptFoo
Open-source CLI for testing, evaluating, and red-teaming LLM applications
Prompt Mixer
Open source app for prompt testing
Superagent
Prototype and deploy agents powered by large language models.
Frequently asked questions
What are the best alternatives to Portkey?
Based on category overlap and popularity, the top alternatives to Portkey include: Agenta (Open-source prompt management, evaluation, and observability for LLM apps); Arize AI (AI observability platform with tracing, evaluation, and monitoring for LLM an...); Braintrust (Stop building AI in the dark.); Cekura (Testing and monitoring platform for AI voice and chat agents); Cloudflare AI Gateway (LLM proxy with caching, logging, rate limiting, and cost analytics). See all 41 alternatives compared on this page.
Is there a free alternative to Portkey?
Yes. 35 alternatives to Portkey offer a free tier or free trial: Agenta, Arize AI, Braintrust, Cekura, Comet Opik, Datadog LLM Observability, and more. Use the comparison above to find the best fit for your use case.
Are there open-source alternatives to Portkey?
Yes. 19 open-source alternatives to Portkey are listed here: Agenta, Arize AI, Comet Opik, DeepEval, Evidently AI, Giskard, and more. Open-source tools can be self-hosted for full control over data and infrastructure.
What is Portkey?
Portkey is an AI infrastructure platform with an open-source AI gateway at its core. It routes requests to 1,600+ LLMs across 200+ providers through a unified API, with automatic retries, fallbacks, load balancing, and caching. The platform adds real-time observability with cost tracking and late... See 41 alternatives to Portkey across 2 categories.
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