# Alternatives to Novastart

> Source: https://theagentsindex.com/novastart/alternatives (re-verified)

Best match first.

## Shortlist

### 1. Agno

Python SDK plus self-hosted AgentOS runtime and hosted control plane for building and operating agents.

**Where it improves on Novastart:**
- [Done-for-you service: partial — You run the software yourself on every plan, but Enterprise bundles hands-on engineering help building your product agent plus monthly office hours.](https://www.agno.com/pricing)
- [Claude: yes — Anthropic Claude is a first-class provider with its own adapter, selectable by the `anthropic` provider key and supported for mid-session model switching.](https://docs.agno.com/faq/switching-models)
- [Open models: yes — Open-weight models run through local and hosted adapters: Ollama and llama.cpp locally, Groq-hosted gpt-oss, Mistral and Azure AI Foundry Phi.](https://docs.agno.com/models/model-as-string)

**Trade-offs against Novastart:**
- None found.

[View Agno](https://theagentsindex.com/agno)

### 2. n8n

Workflow automation platform for building and running AI agents on a visual canvas, with code where needed.

**Where it improves on Novastart:**
- [Claude: yes — Dedicated Anthropic Chat Model node for agents and chains, usable with your own Anthropic key or, on Cloud, with n8n Gateway credits.](https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatanthropic)
- [Open models: yes — Ollama chat and embedding nodes run local open-weight models; OpenRouter, Hugging Face Inference, DeepSeek and Mistral nodes cover hosted open-weight options.](https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatollama)
- [Model choice: yes — You pick the provider and model per node or per agent, and swap it without rebuilding the workflow; a fallback model can be attached to an agent.](https://n8n.io/)

**Trade-offs against Novastart:**
- None found.

[View n8n](https://theagentsindex.com/n8n)

### 3. Sim

Open-source AI workspace for building, deploying and running agents across 1,000+ integrations.

**Where it improves on Novastart:**
- [Claude: yes — Anthropic is one of 15+ supported providers; hosted Claude pricing is published per model.](https://docs.sim.ai/introduction)
- [Open models: yes — Open-weight models run through Groq/Cerebras/OpenRouter, or locally via Ollama or vLLM at no API cost.](https://docs.sim.ai/introduction)
- [Model choice: yes — You pick the model per Agent block across 15+ providers; the default is only a default.](https://docs.sim.ai/getting-started)

**Trade-offs against Novastart:**
- None found.

[View Sim](https://theagentsindex.com/sim)

### 4. Dify

Open-source platform for building agentic workflows, AI agents and RAG knowledge pipelines.

**Where it improves on Novastart:**
- [Claude: yes — Anthropic models are among the providers covered by bundled message credits; you can also add your own Anthropic key.](https://dify.ai/pricing)
- [Open models: partial — Locally deployed models are supported on air-gapped Enterprise deployments; on Cloud you install a provider from the Marketplace and supply its credentials.](https://dify.ai/dify-enterprise)
- [Model choice: yes — You pick the model per app and per node, from bundled providers or any provider you install and key yourself; workspace defaults are configurable.](https://docs.dify.ai/en/cloud/use-dify/workspace/model-providers)

**Trade-offs against Novastart:**
- [Agent permissions: partial — Autonomy is bounded by design, not by a permission prompt: a Human Input node pauses a run for review, approval or edits, with a timeout branch.](https://docs.dify.ai/en/cloud/use-dify/nodes/human-input)

[View Dify](https://theagentsindex.com/dify)

### 5. ElevenLabs Agents

Hosted platform for building voice and chat agents, with telephony, SDKs and a choice of LLM.

**Where it improves on Novastart:**
- [Done-for-you service: partial — Self-serve software you run, but enterprises can buy ElevenLabs Forward Deployed Engineers who scope, build and stabilise the deployment; no price is published.](https://elevenlabs.io/agents/forward-deployed-engineers)
- [Claude: yes — Anthropic models are natively selectable in agent settings; a few older Claude models drop out in EU data-residency workspaces.](https://elevenlabs.io/docs/eleven-agents/customization/llm)
- [Open models: yes — Open-weight models run two ways: ElevenLabs-hosted Qwen in the native model list, or Llama and Mixtral through a custom LLM endpoint such as Together AI, Groq or SambaNova.](https://elevenlabs.io/docs/eleven-agents/customization/llm/custom-llm/together-ai)

**Trade-offs against Novastart:**
- [Self-hosted: partial — The full agent runtime can run in your own VPC or hardware on AWS or GCP, but the documentation is NDA-gated and sold through the account team; Azure is unreleased.](https://elevenlabs.io/docs/overview/capabilities/private-deployment)

[View ElevenLabs Agents](https://theagentsindex.com/elevenlabs-conversational-ai)

### 6. Letta

Stateful agent harness, cloud and SDK for agents with persistent, git-versioned memory.

**Where it improves on Novastart:**
- [Claude: yes — Anthropic API, Amazon Bedrock and GitHub Copilot connections; supported both locally and signed in with Letta.](https://docs.letta.com/configuration/models/index.md)
- [Open models: yes — Ollama, LM Studio and llama.cpp endpoints are local-only integrations; DeepSeek, Mistral and Together are also listed.](https://docs.letta.com/configuration/models/index.md)
- [Model choice: yes — You pick the model and can switch mid-conversation; memory travels with the agent across providers.](https://docs.letta.com/configuration/models/index.md)

**Trade-offs against Novastart:**
- [Audit log: no — No administrative audit log is published; the Enterprise list stops at RBAC, SSO, quotas and dedicated support.](https://docs.letta.com/pricing/index.md)

[View Letta](https://theagentsindex.com/letta)