Best Arize Phoenix alternatives

Comparison

Tool	Price from	Free plan	Category
Arize Phoenix	50 USD/mo	yes	APIs & models
Groq	not listed	?	APIs & models
Google AI Studio	0,75 USD	?	APIs & models
OpenAI Platform	0,10 USD	?	APIs & models
Helicone	79 USD/mo	yes	APIs & models
LLM	not listed	yes	APIs & models
Cartesia	5 USD/mo	yes	APIs & models
Pinecone	20 USD/mo	yes	APIs & models
Cerebras	5 USD	trial	APIs & models

Each alternative in short

1. Groq

Fast AI inference cloud for developers and companies running AI models at scale, built on Groq's LPU chips.

The vendor does not state this clearly on the homepage or pricing page.

2. Google AI Studio

Browser-based workspace for developers to prototype with Gemini and other Google AI models, then move the same work to production via the Gemini API.

The vendor does not state this clearly on the homepage or pricing page.

3. OpenAI Platform

Developer platform for building applications with the OpenAI API, aimed at software developers.

The vendor does not state this clearly on the homepage or pricing page.

4. Helicone

LLMOps platform for routing, monitoring, debugging and analyzing LLM requests in AI apps, aimed at developers and teams.

Yes, there is a free plan. Hobby plan: 10,000 free requests per month, 1 GB storage, 1 seat, 1 organization, 7-day retention, 10 logs/min, 10 API calls/min, community support. A 7-day free trial is offered for paid plans.

5. LLM

Command-line tool and Python library for running prompts against many LLMs, both remote APIs and local models.

Yes, there is a free plan. Open source tool installed locally; the cost depends on the API provider or local model you use.

6. Cartesia

Real-time text-to-speech, speech-to-text and voice agent API for developers building fast, live voice conversations.

Yes, there is a free plan. Free plan: 20K credits per month, $1 prepaid agent dollars per month, access to Text to Speech and Speech to Text.

7. Pinecone

Managed vector database and AI knowledge platform for developers building RAG apps and AI agents that need fast, accurate retrieval.

Yes, there is a free plan. Starter plan is free and covers Pinecone Database On-Demand, Inference and Assistant, with dense, sparse and full-text indexes, console metrics and community support via Discord. A 3-week Standard trial includes 300 USD in credits.

8. Cerebras

Ultra-fast AI inference on Cerebras wafer-scale hardware, for developers and enterprises running frontier models.

There is a free trial. One-time $5 promotional credit after adding a valid payment method, expiring 30 days after activation; no automatic charge.

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