Shortlist by what you need
Start here if you know why you are leaving LLMStack.
Want the closest match?
naoMost similar to LLMStack in what it does, its category and its price.
Visit (opens nao in a new tab)Need a free plan?
OpenMeterHas a free plan, rated 4.1 out of 5.
Visit (opens OpenMeter in a new tab)Want the lowest price?
Gooey.AIFrom $25/mo, the lowest starting price here.
Visit (opens Gooey.AI in a new tab)Want the best rated?
ZylonRated 4.1 out of 5 in our review, against 3.9 for LLMStack.
Visit (opens Zylon in a new tab)
At a glance
Green means better than LLMStack, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
| 3.9 | Free | Yes | Open-source no-code platform for building AI agents and chatbots on your own data. | ||
| 3.9Same | Free | Yes | Open-source builder for analytics agents, focused on giving them the right context. | vs LLMStack | |
| 4.0+0.1 | $25/mo | Yes | Low-code workflow platform that chains open-source and private AI models behind one shared billing layer. | vs LLMStack | |
| 4.1+0.2 | Free | Yes | Open-source metering for usage-based billing on AI and API products. | vs LLMStack | |
| 2.8−1.1 | Free | Yes | An open-source, privacy-focused ChatGPT alternative you host yourself - connects to GROQ, DeepInfra, OpenAI, and LocalAI, actively developed on GitHub. | vs LLMStack | |
| 4.1+0.2 | Not listed | No | Private AI infrastructure deployed on-premise, air-gapped or in your own cloud VPC. | vs LLMStack | |
| 4.1+0.2 | $99/mo | Yes | Open-source observability platform that turns repeated AI agent failures into tracked, fixable issues. | vs LLMStack | |
| 3.9Same | Free | Yes | A visual builder for AI agents with serverless deployment built in - 100+ model/data integrations, no separate infrastructure to stand up. | vs LLMStack | |
| 3.9Same | $39/mo | Yes | No-code workspace for building secure AI assistants on top of leading models | vs LLMStack |
The alternatives in detail
In order of how closely each one matches LLMStack.

nao
3.9Free
vs LLMStackSame
Open-source builder for analytics agents, focused on giving them the right context.
- Analytics agent building framework
- Context engineering as the organising idea
- Evaluation of agent answers
Evaluation built in rather than generation alone
Pricing page returns a 404

Gooey.AI
4.0$25/mo
vs LLMStack+0.1
Low-code workflow platform that chains open-source and private AI models behind one shared billing layer.
- Reusable, forkable AI workflow "recipes" chaining multiple models
- Unified credit-based billing across open-source and proprietary models
- No-code and low-code workflow assembly for non-engineers
Removes the need to manage separate API keys and billing per model provider
Free tier is restricted to non-commercial use

OpenMeter
4.1Free
vs LLMStack+0.2
Open-source metering for usage-based billing on AI and API products.
- Real-time usage metering
- Token and API call measurement
- Entitlements management
Open source and self-hostable for a billing-critical component
Hosted pricing tiers render client-side

Msgmate Open-Chat
2.8Free
vs LLMStack−1.1
An open-source, privacy-focused ChatGPT alternative you host yourself - connects to GROQ, DeepInfra, OpenAI, and LocalAI, actively developed on GitHub.
- Open-source, privacy-focused ChatGPT alternative
- Integrates GROQ, DeepInfra, OpenAI, and LocalAI
- Named open-source model support (dolphin-2.6-mixtral-8x7b)
Genuine privacy-first, self-hosted alternative to closed chat interfaces
Requires technical setup (Docker) rather than a signup-and-go experience

Zylon
4.1Not listed
vs LLMStack+0.2
Private AI infrastructure deployed on-premise, air-gapped or in your own cloud VPC.
- Deployment on-premise, air-gapped or inside a customer-controlled cloud VPC
- Full data control with no dependency on external model providers
- Governance, access control and compliance tooling included
Architectural rather than contractual data control
Self-hosting shifts infrastructure and maintenance cost onto the customer

Latitude
4.1$99/mo
vs LLMStack+0.2
Open-source observability platform that turns repeated AI agent failures into tracked, fixable issues.
- Agent-native tracing across sessions, tool calls, and reasoning steps
- Automatic grouping of repeated failures into tracked issues
- Auto-generated regression datasets from production traces
Genuinely free self-hosted option for teams that want full data control
Self-hosting requires engineering effort the managed plan is built to avoid

Lamatic AI
3.9Free
vs LLMStackSame
A visual builder for AI agents with serverless deployment built in - 100+ model/data integrations, no separate infrastructure to stand up.
- Visual workflow builder for AI agents
- Pre-built templates: RAG chatbots, semantic search, Slack bots
- 100+ model, data source and application integrations
Bundles infrastructure/deployment with the builder, not just the design layer
Visual builder trades some flexibility for speed on complex custom logic

Pulze
3.9$39/mo
vs LLMStackSame
No-code workspace for building secure AI assistants on top of leading models.
- No-code assistant building for business teams
- Routing across several leading model providers
- Enterprise access controls and data handling
Business teams can build without engineering time
No-code boundaries constrain unusual retrieval requirements
FAQ
Questions people ask
Is LLMStack free?
LLMStack has a free plan.
What is the best free alternative to LLMStack?
OpenMeter is the highest-rated alternative here with a free plan (4.1 out of 5). Other free options: Latitude, Gooey.AI, nao.
What is the cheapest alternative to LLMStack?
Among paid plans, Gooey.AI has the lowest starting price (from $25/mo). If you need it free, start with OpenMeter.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.
